diff --git a/src/components/profile/RideCreditsManager.tsx b/src/components/profile/RideCreditsManager.tsx
index 3c08eae9..0e7a430e 100644
--- a/src/components/profile/RideCreditsManager.tsx
+++ b/src/components/profile/RideCreditsManager.tsx
@@ -121,7 +121,7 @@ export function RideCreditsManager({ userId }: RideCreditsManagerProps) {
       const { data, error } = await query;
       if (error) throw error;
       
-      let processedData = (data || []) as any[];
+      let processedData = data || [];
       
       // Sort by name client-side if needed
       if (sortBy === 'name') {
diff --git a/src/hooks/moderation/useEntityCache.ts b/src/hooks/moderation/useEntityCache.ts
index 2601b909..a11fa0ae 100644
--- a/src/hooks/moderation/useEntityCache.ts
+++ b/src/hooks/moderation/useEntityCache.ts
@@ -170,7 +170,7 @@ export function useEntityCache() {
 
     // Collect all entity IDs from submissions
     submissions.forEach(submission => {
-      const content = submission.content as any;
+      const content = submission.content;
       if (content && typeof content === 'object') {
         if (content.ride_id) rideIds.add(content.ride_id);
         if (content.park_id) parkIds.add(content.park_id);
diff --git a/src/hooks/useCoasterStats.ts b/src/hooks/useCoasterStats.ts
new file mode 100644
index 00000000..5a0f9830
--- /dev/null
+++ b/src/hooks/useCoasterStats.ts
@@ -0,0 +1,44 @@
+import { useQuery } from '@tanstack/react-query';
+import { supabase } from '@/integrations/supabase/client';
+
+export interface CoasterStat {
+  id: string;
+  ride_id: string;
+  stat_name: string;
+  stat_value: number;
+  unit?: string | null;
+  category?: string | null;
+  description?: string | null;
+  display_order: number;
+  created_at: string;
+}
+
+export function useCoasterStats(rideId: string | undefined) {
+  return useQuery({
+    queryKey: ['coaster-stats', rideId],
+    queryFn: async () => {
+      if (!rideId) return [];
+      
+      const { data, error } = await (supabase as any)
+        .from('ride_coaster_stats')
+        .select('*')
+        .eq('ride_id', rideId)
+        .order('display_order');
+      
+      if (error) throw error;
+      
+      return (data || []).map((stat: any) => ({
+        id: stat.id,
+        ride_id: stat.ride_id,
+        stat_name: stat.stat_name,
+        stat_value: stat.stat_value,
+        unit: stat.unit || null,
+        category: stat.category || null,
+        description: stat.description || null,
+        display_order: stat.display_order,
+        created_at: stat.created_at,
+      })) as CoasterStat[];
+    },
+    enabled: !!rideId
+  });
+}
diff --git a/src/hooks/useEntityVersions.ts b/src/hooks/useEntityVersions.ts
index 078e28bd..12bd45b6 100644
--- a/src/hooks/useEntityVersions.ts
+++ b/src/hooks/useEntityVersions.ts
@@ -41,8 +41,8 @@ export function useEntityVersions(entityType: EntityType, entityId: string) {
       const versionTable = `${entityType}_versions`;
       const entityIdCol = `${entityType}_id`;
       
-      const { data, error } = await supabase
-        .from(versionTable as any)
+      const { data, error } = await (supabase as any)
+        .from(versionTable)
         .select(`
           *,
           profiles:created_by(username, display_name, avatar_url)
@@ -63,7 +63,7 @@ export function useEntityVersions(entityType: EntityType, entityId: string) {
         return;
       }
 
-      const versionsWithProfiles = (data as any[]).map((v: any) => ({
+      const versionsWithProfiles = (data || []).map((v: any) => ({
         ...v,
         profiles: v.profiles || {
           username: 'Unknown',
diff --git a/src/hooks/useTechnicalSpecifications.ts b/src/hooks/useTechnicalSpecifications.ts
new file mode 100644
index 00000000..ffd749ba
--- /dev/null
+++ b/src/hooks/useTechnicalSpecifications.ts
@@ -0,0 +1,52 @@
+import { useQuery } from '@tanstack/react-query';
+import { supabase } from '@/integrations/supabase/client';
+
+export interface TechnicalSpecification {
+  id: string;
+  entity_type: 'ride' | 'ride_model';
+  entity_id: string;
+  spec_name: string;
+  spec_value: string;
+  spec_unit?: string | null;
+  category?: string | null;
+  display_order: number;
+  created_at: string;
+}
+
+export function useTechnicalSpecifications(
+  entityType: 'ride' | 'ride_model',
+  entityId: string | undefined
+) {
+  return useQuery({
+    queryKey: ['technical-specifications', entityType, entityId],
+    queryFn: async () => {
+      if (!entityId) return [];
+      
+      const tableName = entityType === 'ride' 
+        ? 'ride_technical_specifications' 
+        : 'ride_model_technical_specifications';
+      const idColumn = entityType === 'ride' ? 'ride_id' : 'ride_model_id';
+      
+      const { data, error } = await (supabase as any)
+        .from(tableName)
+        .select('*')
+        .eq(idColumn, entityId)
+        .order('display_order');
+      
+      if (error) throw error;
+      
+      return (data || []).map((spec: any) => ({
+        id: spec.id,
+        entity_type: entityType,
+        entity_id: entityId,
+        spec_name: spec.spec_name,
+        spec_value: spec.spec_value,
+        spec_unit: spec.spec_unit || null,
+        category: spec.category || null,
+        display_order: spec.display_order,
+        created_at: spec.created_at,
+      })) as TechnicalSpecification[];
+    },
+    enabled: !!entityId
+  });
+}
diff --git a/src/lib/runtimeValidation.ts b/src/lib/runtimeValidation.ts
index 43c6bfab..06fbeceb 100644
--- a/src/lib/runtimeValidation.ts
+++ b/src/lib/runtimeValidation.ts
@@ -121,7 +121,7 @@ export const rideModelRuntimeSchema = z.object({
   manufacturer_id: z.string().uuid().nullable().optional(),
   category: z.string(),
   description: z.string().nullable().optional(),
-  technical_specs: z.array(z.unknown()).nullable().optional(),
+  // Note: technical_specs deprecated - use ride_model_technical_specifications table
   created_at: z.string().optional(),
   updated_at: z.string().optional(),
 }).passthrough();
diff --git a/src/pages/Profile.tsx b/src/pages/Profile.tsx
index 6eaaf57d..622790a7 100644
--- a/src/pages/Profile.tsx
+++ b/src/pages/Profile.tsx
@@ -19,7 +19,7 @@ import { UserListManager } from '@/components/lists/UserListManager';
 import { RideCreditsManager } from '@/components/profile/RideCreditsManager';
 import { useUsernameValidation } from '@/hooks/useUsernameValidation';
 import { User, MapPin, Calendar, Star, Trophy, Settings, Camera, Edit3, Save, X, ArrowLeft, Check, AlertCircle, Loader2, UserX, FileText, Image } from 'lucide-react';
-import { Profile as ProfileType, ActivityEntry, ReviewActivity, SubmissionActivity, RankingActivity } from '@/types/database';
+import { Profile as ProfileType } from '@/types/database';
 import { supabase } from '@/integrations/supabase/client';
 import { useToast } from '@/hooks/use-toast';
 import { getErrorMessage } from '@/lib/errorHandler';
@@ -30,6 +30,95 @@ import { UserBlockButton } from '@/components/profile/UserBlockButton';
 import { PersonalLocationDisplay } from '@/components/profile/PersonalLocationDisplay';
 import { useUserRole } from '@/hooks/useUserRole';
 
+// Activity type definitions
+interface SubmissionActivity {
+  id: string;
+  type: 'submission';
+  submission_type: 'park' | 'ride' | 'photo' | 'company' | 'ride_model';
+  status: string;
+  created_at: string;
+  content?: {
+    action?: 'edit' | 'create';
+    name?: string;
+    slug?: string;
+    entity_slug?: string;
+    entity_name?: string;
+    park_slug?: string;
+    park_name?: string;
+    company_type?: string;
+    manufacturer_slug?: string;
+    description?: string;
+  };
+  photo_preview?: string;
+  photo_count?: number;
+  entity_type?: 'park' | 'ride' | 'company';
+  entity_id?: string;
+}
+
+interface RankingActivity {
+  id: string;
+  type: 'ranking';
+  title: string;
+  description?: string;
+  list_type: string;
+  created_at: string;
+}
+
+interface ReviewActivity {
+  id: string;
+  type: 'review';
+  rating: number;
+  title?: string;
+  content?: string;
+  created_at: string;
+  moderation_status?: string;
+  park_id?: string;
+  ride_id?: string;
+  parks?: {
+    name: string;
+    slug: string;
+  } | null;
+  rides?: {
+    name: string;
+    slug: string;
+    parks?: {
+      name: string;
+      slug: string;
+    } | null;
+  } | null;
+}
+
+interface CreditActivity {
+  id: string;
+  type: 'credit';
+  ride_count: number;
+  first_ride_date?: string;
+  created_at: string;
+  rides?: {
+    name: string;
+    slug: string;
+    parks?: {
+      name: string;
+      slug: string;
+    } | null;
+  } | null;
+}
+
+type ActivityEntry = SubmissionActivity | RankingActivity | ReviewActivity | CreditActivity;
+
+// Type guards
+const isSubmissionActivity = (act: ActivityEntry): act is SubmissionActivity => 
+  act.type === 'submission';
+
+const isRankingActivity = (act: ActivityEntry): act is RankingActivity => 
+  act.type === 'ranking';
+
+const isReviewActivity = (act: ActivityEntry): act is ReviewActivity => 
+  act.type === 'review';
+
+const isCreditActivity = (act: ActivityEntry): act is CreditActivity => 
+  act.type === 'credit';
+
 export default function Profile() {
   const {
     username
@@ -764,7 +853,7 @@ export default function Profile() {
                                 <>
                                   <div className="flex items-center gap-2 mb-1">
                                     <p className="font-medium">
-                                      {reviewActivity.title || reviewActivity.description || 'Left a review'}
+                                      {reviewActivity.title || reviewActivity.content || 'Left a review'}
                                     </p>
                                   </div>
                                   <div className="flex items-center gap-1 mb-2">
@@ -789,58 +878,58 @@ export default function Profile() {
                                 </>
                               );
                             })()
-                          ) : activity.type === 'submission' ? (
+                          ) : isSubmissionActivity(activity) ? (
                             <>
                               <div className="flex items-center gap-2 mb-1">
                                 <p className="font-medium">
-                                  {(activity as any).content?.action === 'edit' ? 'Edited' : 'Submitted'}{' '}
-                                  {(activity as any).submission_type === 'photo' ? 'photos for' : (activity as any).submission_type || 'content'}
-                                  {(activity as any).content?.name && ` ${(activity as any).content.name}`}
+                                  {activity.content?.action === 'edit' ? 'Edited' : 'Submitted'}{' '}
+                                  {activity.submission_type === 'photo' ? 'photos for' : activity.submission_type || 'content'}
+                                  {activity.content?.name && ` ${activity.content.name}`}
                                 </p>
-                                {(activity as any).status === 'pending' && (
+                                {activity.status === 'pending' && (
                                   <Badge variant="secondary" className="text-xs">Pending</Badge>
                                 )}
-                                {(activity as any).status === 'approved' && (
+                                {activity.status === 'approved' && (
                                   <Badge variant="default" className="text-xs">Approved</Badge>
                                 )}
-                                {(activity as any).status === 'rejected' && (
+                                {activity.status === 'rejected' && (
                                   <Badge variant="destructive" className="text-xs">Rejected</Badge>
                                 )}
-                                {(activity as any).status === 'partially_approved' && (
+                                {activity.status === 'partially_approved' && (
                                   <Badge variant="outline" className="text-xs">Partially Approved</Badge>
                                 )}
                               </div>
                               
                               {/* Photo preview for photo submissions */}
-                              {(activity as any).submission_type === 'photo' && (activity as any).photo_preview && (
+                              {activity.submission_type === 'photo' && activity.photo_preview && (
                                 <div className="flex gap-2 items-center mb-2">
                                   <img 
-                                    src={(activity as any).photo_preview} 
+                                    src={activity.photo_preview} 
                                     alt="Photo preview" 
                                     className="w-16 h-16 rounded object-cover border"
                                   />
-                                  {(activity as any).photo_count > 1 && (
+                                  {activity.photo_count && activity.photo_count > 1 && (
                                     <span className="text-xs text-muted-foreground">
-                                      +{(activity as any).photo_count - 1} more
+                                      +{activity.photo_count - 1} more
                                     </span>
                                   )}
                                 </div>
                               )}
                               
                               {/* Entity link for photo submissions */}
-                              {(activity as any).submission_type === 'photo' && (activity as any).content?.entity_slug && (
+                              {activity.submission_type === 'photo' && activity.content?.entity_slug && (
                                 <div className="text-sm text-muted-foreground">
-                                  {(activity as any).entity_type === 'park' ? (
-                                    <Link to={`/parks/${(activity as any).content.entity_slug}`} className="hover:text-accent transition-colors">
-                                      {(activity as any).content.entity_name || 'View park'}
+                                  {activity.entity_type === 'park' ? (
+                                    <Link to={`/parks/${activity.content.entity_slug}`} className="hover:text-accent transition-colors">
+                                      {activity.content.entity_name || 'View park'}
                                     </Link>
-                                  ) : (activity as any).entity_type === 'ride' ? (
+                                  ) : activity.entity_type === 'ride' ? (
                                     <>
-                                      <Link to={`/parks/${(activity as any).content.park_slug}/rides/${(activity as any).content.entity_slug}`} className="hover:text-accent transition-colors">
-                                        {(activity as any).content.entity_name || 'View ride'}
+                                      <Link to={`/parks/${activity.content.park_slug}/rides/${activity.content.entity_slug}`} className="hover:text-accent transition-colors">
+                                        {activity.content.entity_name || 'View ride'}
                                       </Link>
-                                      {(activity as any).content.park_name && (
-                                        <span className="text-muted-foreground/70"> at {(activity as any).content.park_name}</span>
+                                      {activity.content.park_name && (
+                                        <span className="text-muted-foreground/70"> at {activity.content.park_name}</span>
                                       )}
                                     </>
                                   ) : null}
@@ -848,42 +937,42 @@ export default function Profile() {
                               )}
                               
                               {/* Links for entity submissions */}
-                              {(activity as any).status === 'approved' && (activity as any).submission_type !== 'photo' && (
+                              {activity.status === 'approved' && activity.submission_type !== 'photo' && (
                                 <>
-                                  {(activity as any).submission_type === 'park' && (activity as any).content?.slug && (
+                                  {activity.submission_type === 'park' && activity.content?.slug && (
                                     <Link 
-                                      to={`/parks/${(activity as any).content.slug}`}
+                                      to={`/parks/${activity.content.slug}`}
                                       className="text-sm text-accent hover:underline"
                                     >
                                       View park →
                                     </Link>
                                   )}
-                                  {(activity as any).submission_type === 'ride' && (activity as any).content?.slug && (activity as any).content?.park_slug && (
+                                  {activity.submission_type === 'ride' && activity.content?.slug && activity.content?.park_slug && (
                                     <div className="text-sm">
                                       <Link 
-                                        to={`/parks/${(activity as any).content.park_slug}/rides/${(activity as any).content.slug}`}
+                                        to={`/parks/${activity.content.park_slug}/rides/${activity.content.slug}`}
                                         className="text-accent hover:underline"
                                       >
                                         View ride →
                                       </Link>
-                                      {(activity as any).content.park_name && (
+                                      {activity.content.park_name && (
                                         <span className="text-muted-foreground ml-1">
-                                          at {(activity as any).content.park_name}
+                                          at {activity.content.park_name}
                                         </span>
                                       )}
                                     </div>
                                   )}
-                                  {(activity as any).submission_type === 'company' && (activity as any).content?.slug && (
+                                  {activity.submission_type === 'company' && activity.content?.slug && (
                                     <Link 
-                                      to={`/${(activity as any).content.company_type === 'operator' ? 'operators' : (activity as any).content.company_type === 'property_owner' ? 'owners' : (activity as any).content.company_type === 'manufacturer' ? 'manufacturers' : 'designers'}/${(activity as any).content.slug}`}
+                                      to={`/${activity.content.company_type === 'operator' ? 'operators' : activity.content.company_type === 'property_owner' ? 'owners' : activity.content.company_type === 'manufacturer' ? 'manufacturers' : 'designers'}/${activity.content.slug}`}
                                       className="text-sm text-accent hover:underline"
                                     >
-                                      View {(activity as any).content.company_type || 'company'} →
+                                      View {activity.content.company_type || 'company'} →
                                     </Link>
                                   )}
-                                  {(activity as any).submission_type === 'ride_model' && (activity as any).content?.slug && (activity as any).content?.manufacturer_slug && (
+                                  {activity.submission_type === 'ride_model' && activity.content?.slug && activity.content?.manufacturer_slug && (
                                     <Link 
-                                      to={`/manufacturers/${(activity as any).content.manufacturer_slug}/models/${(activity as any).content.slug}`}
+                                      to={`/manufacturers/${activity.content.manufacturer_slug}/models/${activity.content.slug}`}
                                       className="text-sm text-accent hover:underline"
                                     >
                                       View model →
@@ -892,54 +981,51 @@ export default function Profile() {
                                 </>
                               )}
                               
-                              {(activity as any).content?.description && (activity as any).submission_type !== 'photo' && (
+                              {activity.content?.description && activity.submission_type !== 'photo' && (
                                 <p className="text-sm text-muted-foreground line-clamp-2">
-                                  {(activity as any).content.description}
+                                  {activity.content.description}
                                 </p>
                               )}
                             </>
-                          ) : activity.type === 'ranking' ? (
+                          ) : isRankingActivity(activity) ? (
                             <>
                               <div className="flex items-center gap-2 mb-1">
                                 <Link 
                                   to={`/profile/${profile?.username}/lists`}
                                   className="font-medium hover:text-accent transition-colors"
                                 >
-                                  Created ranking: {(activity as any).title || 'Untitled'}
+                                  Created ranking: {activity.title || 'Untitled'}
                                 </Link>
                                 <Badge variant="outline" className="text-xs capitalize">
-                                  {((activity as any).list_type || '').replace('_', ' ')}
+                                  {(activity.list_type || '').replace('_', ' ')}
                                 </Badge>
-                                {(activity as any).is_public === false && (
-                                  <Badge variant="secondary" className="text-xs">Private</Badge>
-                                )}
                               </div>
-                              {(activity as any).description && (
+                              {activity.description && (
                                 <p className="text-sm text-muted-foreground line-clamp-2">
-                                  {(activity as any).description}
+                                  {activity.description}
                                 </p>
                               )}
                             </>
-                          ) : (
+                          ) : isCreditActivity(activity) ? (
                             <>
                               <p className="font-medium mb-1">Added ride credit</p>
-                              {(activity as any).rides && (
+                              {activity.rides && (
                                 <div className="text-sm text-muted-foreground">
-                                  <Link to={`/parks/${(activity as any).rides.parks?.slug}/rides/${(activity as any).rides.slug}`} className="hover:text-accent transition-colors">
-                                    {(activity as any).rides.name}
+                                  <Link to={`/parks/${activity.rides.parks?.slug}/rides/${activity.rides.slug}`} className="hover:text-accent transition-colors">
+                                    {activity.rides.name}
                                   </Link>
-                                  {(activity as any).rides.parks && (
-                                    <span className="text-muted-foreground/70"> at {(activity as any).rides.parks.name}</span>
+                                  {activity.rides.parks && (
+                                    <span className="text-muted-foreground/70"> at {activity.rides.parks.name}</span>
                                   )}
                                 </div>
                               )}
-                              {(activity as any).ride_count > 1 && (
+                              {activity.ride_count > 1 && (
                                 <p className="text-xs text-muted-foreground mt-1">
-                                  Ridden {(activity as any).ride_count} times
+                                  Ridden {activity.ride_count} times
                                 </p>
                               )}
                             </>
-                          )}
+                          ) : null}
                         </div>
                         
                         <div className="flex-shrink-0 text-xs text-muted-foreground">
diff --git a/src/pages/RideModelDetail.tsx b/src/pages/RideModelDetail.tsx
index bf89c1bc..04ea3def 100644
--- a/src/pages/RideModelDetail.tsx
+++ b/src/pages/RideModelDetail.tsx
@@ -9,6 +9,7 @@ import { Dialog, DialogContent } from '@/components/ui/dialog';
 import { ArrowLeft, FerrisWheel, Building2, Edit } from 'lucide-react';
 import { RideModel, Ride, Company } from '@/types/database';
 import { supabase } from '@/integrations/supabase/client';
+import { useTechnicalSpecifications } from '@/hooks/useTechnicalSpecifications';
 import { getCloudflareImageUrl } from '@/lib/cloudflareImageUtils';
 import { useAuthModal } from '@/hooks/useAuthModal';
 import { useAuth } from '@/hooks/useAuth';
@@ -29,6 +30,9 @@ export default function RideModelDetail() {
   const [loading, setLoading] = useState(true);
   const [isEditModalOpen, setIsEditModalOpen] = useState(false);
   const [statistics, setStatistics] = useState({ rideCount: 0, photoCount: 0 });
+  
+  // Fetch technical specifications from relational table
+  const { data: technicalSpecs } = useTechnicalSpecifications('ride_model', model?.id);
 
   const fetchData = useCallback(async () => {
     try {
@@ -266,15 +270,19 @@ export default function RideModelDetail() {
               </Card>
             )}
 
-            {model.technical_specs && typeof model.technical_specs === 'object' && Object.keys(model.technical_specs).length > 0 && (
+            {technicalSpecs && technicalSpecs.length > 0 && (
               <Card>
                 <CardContent className="pt-6">
                   <h2 className="text-2xl font-semibold mb-4">Technical Specifications</h2>
                   <div className="grid md:grid-cols-2 gap-4">
-                    {Object.entries(model.technical_specs as Record<string, any>).map(([key, value]) => (
-                      <div key={key} className="flex justify-between py-2 border-b">
-                        <span className="font-medium capitalize">{key.replace(/_/g, ' ')}</span>
-                        <span className="text-muted-foreground">{String(value)}</span>
+                    {technicalSpecs.map((spec) => (
+                      <div key={spec.id} className="flex justify-between py-2 border-b">
+                        <span className="font-medium capitalize">
+                          {spec.spec_name.replace(/_/g, ' ')}
+                        </span>
+                        <span className="text-muted-foreground">
+                          {spec.spec_value} {spec.spec_unit || ''}
+                        </span>
                       </div>
                     ))}
                   </div>
diff --git a/src/types/database.ts b/src/types/database.ts
index 6d8d23b1..584c5fb8 100644
--- a/src/types/database.ts
+++ b/src/types/database.ts
@@ -118,8 +118,8 @@ export interface RideModel {
   category: 'roller_coaster' | 'flat_ride' | 'water_ride' | 'dark_ride' | 'kiddie_ride' | 'transportation';
   ride_type?: string;
   description?: string;
-  technical_specs?: Record<string, any>;
-  technical_specifications?: RideModelTechnicalSpec[];
+  // Note: technical_specs deprecated - use ride_model_technical_specifications table
+  // Load via useTechnicalSpecifications hook instead
   banner_image_url?: string;
   banner_image_id?: string;
   card_image_url?: string;
diff --git a/src/types/versioning.ts b/src/types/versioning.ts
index 29750323..de6f4317 100644
--- a/src/types/versioning.ts
+++ b/src/types/versioning.ts
@@ -127,7 +127,7 @@ export interface RideModelVersion extends BaseVersionWithProfile {
   manufacturer_id: string | null;
   category: string;
   description: string | null;
-  technical_specs: Record<string, any> | null;
+  // Note: technical_specs removed - use ride_model_technical_specifications table
 }
 
 /**