diff --git a/components/asset/FloatingPool/index.tsx b/components/asset/FloatingPool/index.tsx
index f6f98642e..492e98138 100644
--- a/components/asset/FloatingPool/index.tsx
+++ b/components/asset/FloatingPool/index.tsx
@@ -4,12 +4,15 @@ import FloatingPoolInfo from './FloatingPoolInfo';
 import { Box, Grid } from '@mui/material';
 import HistoricalRateChart from 'components/charts/HistoricalRateChart';
 import UtilizationRateChart from 'components/charts/UtilizationRateChart';
+import { useWeb3 } from 'hooks/useWeb3';
+import { mainnet } from 'wagmi';
 
 type AssetFloatingPoolProps = {
   symbol: string;
 };
 
 const AssetFloatingPool: FC<AssetFloatingPoolProps> = ({ symbol }) => {
+  const { chain } = useWeb3();
   return (
     <Box display="flex" flexDirection="column" gap="8px">
       <Grid
@@ -32,14 +35,16 @@ const AssetFloatingPool: FC<AssetFloatingPoolProps> = ({ symbol }) => {
       >
         <HistoricalRateChart symbol={symbol} />
       </Box>
-      <Box
-        boxShadow={({ palette }) => (palette.mode === 'light' ? '0px 4px 12px rgba(175, 177, 182, 0.2)' : '')}
-        borderRadius="0px 0px 6px 6px"
-        bgcolor="components.bg"
-        p="16px"
-      >
-        <UtilizationRateChart type="floating" symbol={symbol} />
-      </Box>
+      {chain.id !== mainnet.id && (
+        <Box
+          boxShadow={({ palette }) => (palette.mode === 'light' ? '0px 4px 12px rgba(175, 177, 182, 0.2)' : '')}
+          borderRadius="0px 0px 6px 6px"
+          bgcolor="components.bg"
+          p="16px"
+        >
+          <UtilizationRateChart type="floating" symbol={symbol} />
+        </Box>
+      )}
     </Box>
   );
 };
diff --git a/components/asset/Header.tsx b/components/asset/Header.tsx
index f35ef3363..f093a486f 100644
--- a/components/asset/Header.tsx
+++ b/components/asset/Header.tsx
@@ -22,6 +22,7 @@ import { useWeb3 } from 'hooks/useWeb3';
 import Alert from '@mui/material/Alert';
 import { useFloatingBalances } from 'hooks/useFloatingBalances';
 import { useFixedBalances } from 'hooks/useFixedBalances';
+import { mainnet } from 'wagmi';
 
 type Props = {
   symbol: string;
@@ -154,8 +155,14 @@ const AssetHeaderInfo: FC<Props> = ({ symbol }) => {
 
   const borrowableUtilization = useMemo(() => {
     if (!marketAccount) return;
-    return Number(WAD - marketAccount.reserveFactor) / 1e18;
-  }, [marketAccount]);
+
+    if (displayNetworkId === mainnet.id) return 0.9;
+
+    if ('reserveFactor' in marketAccount) {
+      return Number(WAD - marketAccount.reserveFactor) / 1e18;
+    }
+    return;
+  }, [displayNetworkId, marketAccount]);
 
   return (
     <>
diff --git a/components/asset/MaturityPool/index.tsx b/components/asset/MaturityPool/index.tsx
index 72e221c29..e9aac54e1 100644
--- a/components/asset/MaturityPool/index.tsx
+++ b/components/asset/MaturityPool/index.tsx
@@ -10,6 +10,8 @@ import MaturityPoolsMobile from './MaturityPoolsMobile';
 import useAccountData from 'hooks/useAccountData';
 import { formatUnits } from 'viem';
 import SpreadModelChart from 'components/charts/SpreadModelChart';
+import { mainnet } from 'wagmi';
+import { useWeb3 } from 'hooks/useWeb3';
 
 type Rate = {
   maturity: bigint;
@@ -24,6 +26,7 @@ const AssetMaturityPools: FC<Props> = ({ symbol }) => {
   const { marketAccount } = useAccountData(symbol);
   const theme = useTheme();
   const isMobile = useMediaQuery(theme.breakpoints.down('sm'));
+  const { chain } = useWeb3();
 
   const { totalDeposited, totalBorrowed, bestDeposit, bestBorrow } = useMemo<{
     totalDeposited?: number;
@@ -94,15 +97,17 @@ const AssetMaturityPools: FC<Props> = ({ symbol }) => {
           </Grid>
         )}
       </Grid>
-      <Box
-        boxShadow={({ palette }) => (palette.mode === 'light' ? '0px 4px 12px rgba(175, 177, 182, 0.2)' : '')}
-        borderRadius="0px 0px 6px 6px"
-        bgcolor="components.bg"
-        p="16px"
-        height={480}
-      >
-        <SpreadModelChart symbol={symbol} />
-      </Box>
+      {chain.id !== mainnet.id && (
+        <Box
+          boxShadow={({ palette }) => (palette.mode === 'light' ? '0px 4px 12px rgba(175, 177, 182, 0.2)' : '')}
+          borderRadius="0px 0px 6px 6px"
+          bgcolor="components.bg"
+          p="16px"
+          height={480}
+        >
+          <SpreadModelChart symbol={symbol} />
+        </Box>
+      )}
     </Box>
   );
 };
diff --git a/config/networkData.json b/config/networkData.json
index 9a6b3a60b..12c3ad4d0 100644
--- a/config/networkData.json
+++ b/config/networkData.json
@@ -2,7 +2,7 @@
   "1": {
     "etherscan": "https://etherscan.io",
     "subgraph": {
-      "exactly": "https://gateway.thegraph.com/api/3bd03f49a36caaa5ed4efc5a27c5425d/subgraphs/id/As6Xz6GCvbW8B9Xb7Rx2LqQeJcL3FcUyD8Tk95L8rG5d",
+      "exactly": "https://api.thegraph.com/subgraphs/name/itofarina/exa-op-sandbox",
       "sablier": "https://api.thegraph.com/subgraphs/name/sablier-labs/sablier-v2"
     }
   },
diff --git a/hooks/useAccountData.ts b/hooks/useAccountData.ts
index 1be990ca0..6ed6da64a 100644
--- a/hooks/useAccountData.ts
+++ b/hooks/useAccountData.ts
@@ -3,12 +3,18 @@ import { AbiParametersToPrimitiveTypes, ExtractAbiFunction } from 'abitype';
 
 import AccountDataContext from 'contexts/AccountDataContext';
 import usePreviewerExactly from 'hooks/usePreviewerExactly';
-import { previewerABI } from 'types/abi';
+import { previewerABI, legacyPreviewerABI } from 'types/abi';
 
-export type MarketAccount = AbiParametersToPrimitiveTypes<
+type NewMarketAccount = AbiParametersToPrimitiveTypes<
   ExtractAbiFunction<typeof previewerABI, 'exactly'>['outputs']
 >[number][number];
 
+export type LegacyMarketAccount = AbiParametersToPrimitiveTypes<
+  ExtractAbiFunction<typeof legacyPreviewerABI, 'exactly'>['outputs']
+>[number][number];
+
+export type MarketAccount = NewMarketAccount | LegacyMarketAccount;
+
 type AccountDataHook = {
   marketAccount?: MarketAccount;
   accountData?: readonly MarketAccount[];
diff --git a/hooks/useIRM.ts b/hooks/useIRM.ts
index d948a44ca..6408ebd89 100644
--- a/hooks/useIRM.ts
+++ b/hooks/useIRM.ts
@@ -2,5 +2,6 @@ import useAccountData from './useAccountData';
 
 export default function useIRM(symbol: string) {
   const { marketAccount } = useAccountData(symbol);
-  return marketAccount?.interestRateModel?.parameters;
+  if (!marketAccount) return;
+  if ('parameters' in marketAccount.interestRateModel) return marketAccount?.interestRateModel?.parameters;
 }
diff --git a/hooks/usePreviewer.ts b/hooks/usePreviewer.ts
index 2e263a2e6..51f2955d6 100644
--- a/hooks/usePreviewer.ts
+++ b/hooks/usePreviewer.ts
@@ -4,13 +4,13 @@ import { isAddress } from 'viem';
 import { mainnet, optimismSepolia, optimism } from 'wagmi/chains';
 
 import { useWeb3 } from './useWeb3';
-import { previewerABI } from 'types/abi';
+import { previewerABI, legacyPreviewerABI } from 'types/abi';
 import mainnetPreviewer from '@exactly/protocol/deployments/ethereum/Previewer.json' assert { type: 'json' };
 import optimismPreviewer from '@exactly/protocol/deployments/optimism/Previewer.json' assert { type: 'json' };
 import sepoliaPreviewer from '@exactly/protocol/deployments/op-sepolia/Previewer.json' assert { type: 'json' };
-import { Previewer } from 'types/contracts';
+import { Previewer, LegacyPreviewer } from 'types/contracts';
 
-export default (): Previewer | undefined => {
+export default (): Previewer | LegacyPreviewer | undefined => {
   const { chain } = useWeb3();
 
   return useMemo(() => {
@@ -22,10 +22,18 @@ export default (): Previewer | undefined => {
 
     if (!address || !isAddress(address)) return;
 
-    return getContract({
-      chainId: chain.id,
-      address,
-      abi: previewerABI,
-    });
+    if (chain.id === mainnet.id) {
+      return getContract({
+        chainId: chain.id,
+        address,
+        abi: legacyPreviewerABI,
+      });
+    } else {
+      return getContract({
+        chainId: chain.id,
+        address,
+        abi: previewerABI,
+      });
+    }
   }, [chain.id]);
 };
diff --git a/hooks/usePreviewerExactly.ts b/hooks/usePreviewerExactly.ts
index 960890995..e15bfd7a5 100644
--- a/hooks/usePreviewerExactly.ts
+++ b/hooks/usePreviewerExactly.ts
@@ -2,7 +2,7 @@ import { isAddress, zeroAddress } from 'viem';
 import { mainnet, optimismSepolia, optimism } from 'wagmi/chains';
 
 import { useWeb3 } from './useWeb3';
-import { usePreviewerExactly } from 'types/abi';
+import { usePreviewerExactly, useLegacyPreviewerExactly } from 'types/abi';
 import mainnetPreviewer from '@exactly/protocol/deployments/ethereum/Previewer.json' assert { type: 'json' };
 import optimismPreviewer from '@exactly/protocol/deployments/optimism/Previewer.json' assert { type: 'json' };
 import sepoliaPreviewer from '@exactly/protocol/deployments/op-sepolia/Previewer.json' assert { type: 'json' };
@@ -18,10 +18,19 @@ export default (override?: number) => {
 
   if (!address || !isAddress(address)) throw new Error(`No deployment for ${chain.id}`);
 
-  return usePreviewerExactly({
-    chainId: override ?? chain.id,
-    address,
-    args: [walletAddress ?? zeroAddress],
-    staleTime: 5_000,
-  });
+  if (chain.id === mainnet.id) {
+    return useLegacyPreviewerExactly({
+      chainId: override ?? chain.id,
+      address,
+      args: [walletAddress ?? zeroAddress],
+      staleTime: 5_000,
+    });
+  } else {
+    return usePreviewerExactly({
+      chainId: override ?? chain.id,
+      address,
+      args: [walletAddress ?? zeroAddress],
+      staleTime: 5_000,
+    });
+  }
 };
diff --git a/types/contracts.ts b/types/contracts.ts
index 2d1c06479..d5da6234f 100644
--- a/types/contracts.ts
+++ b/types/contracts.ts
@@ -10,6 +10,7 @@ import {
   marketABI,
   marketEthRouterABI,
   previewerABI,
+  legacyPreviewerABI,
   rewardsControllerABI,
   permit2ABI,
   sablierV2LockupLinearABI,
@@ -23,6 +24,7 @@ export type ReadContractType<T extends Abi> = ReturnType<typeof getContract<T, u
 export type ERC20 = ContractType<typeof erc20ABI>;
 export type Auditor = ContractType<typeof auditorABI>;
 export type Previewer = ReadContractType<typeof previewerABI>;
+export type LegacyPreviewer = ReadContractType<typeof legacyPreviewerABI>;
 export type Market = ContractType<typeof marketABI>;
 export type MarketETHRouter = ContractType<typeof marketEthRouterABI>;
 export type InterestRateModel = ContractType<typeof interestRateModelABI>;
diff --git a/wagmi.config.ts b/wagmi.config.ts
index ea89d4107..9215778fe 100644
--- a/wagmi.config.ts
+++ b/wagmi.config.ts
@@ -12,6 +12,7 @@ import EXAPool from '@exactly/protocol/deployments/optimism/EXAPool.json' assert
 import Swapper from '@exactly/protocol/deployments/optimism/Swapper.json' assert { type: 'json' };
 import EXAGauge from '@exactly/protocol/deployments/optimism/EXAGauge.json' assert { type: 'json' };
 import Previewer from '@exactly/protocol/deployments/op-sepolia/Previewer.json' assert { type: 'json' };
+import LegacyPreviewer from '@exactly/protocol/deployments/ethereum/Previewer.json' assert { type: 'json' };
 import DebtManager from '@exactly/protocol/deployments/op-sepolia/DebtManager.json' assert { type: 'json' };
 import DebtPreviewer from '@exactly/protocol/deployments/op-sepolia/DebtPreviewer.json' assert { type: 'json' };
 import MarketETHRouter from '@exactly/protocol/deployments/op-sepolia/MarketETHRouter.json' assert { type: 'json' };
@@ -41,6 +42,7 @@ export default defineConfig({
     { name: 'Swapper', abi: Swapper.abi as Abi },
     { name: 'EXAGauge', abi: EXAGauge.abi as Abi },
     { name: 'Previewer', abi: Previewer.abi as Abi },
+    { name: 'LegacyPreviewer', abi: LegacyPreviewer.abi as Abi },
     { name: 'DebtManager', abi: DebtManager.abi as Abi },
     { name: 'DebtPreviewer', abi: DebtPreviewer.abi as Abi },
     { name: 'MarketETHRouter', abi: MarketETHRouter.abi as Abi },