diff --git a/plasma_framework/contracts/mocks/exits/payment/routers/PaymentInFlightExitRouterMock.sol b/plasma_framework/contracts/mocks/exits/payment/routers/PaymentInFlightExitRouterMock.sol
index c2c4d59b4..2ac37b0ba 100644
--- a/plasma_framework/contracts/mocks/exits/payment/routers/PaymentInFlightExitRouterMock.sol
+++ b/plasma_framework/contracts/mocks/exits/payment/routers/PaymentInFlightExitRouterMock.sol
@@ -21,10 +21,11 @@ contract PaymentInFlightExitRouterMock is PaymentInFlightExitRouter {
         SpendingConditionRegistry spendingConditionRegistry,
         IStateTransitionVerifier stateTransitionVerifier,
         ITxFinalizationVerifier txFinalizationVerifier,
-        uint256 supportedTxType
+        uint256 supportTxType
     )
         public
-        PaymentInFlightExitRouter(
+    {
+        PaymentInFlightExitRouter.init(
             plasmaFramework,
             ethVault,
             erc20Vault,
@@ -32,9 +33,8 @@ contract PaymentInFlightExitRouterMock is PaymentInFlightExitRouter {
             spendingConditionRegistry,
             stateTransitionVerifier,
             txFinalizationVerifier,
-            supportedTxType
-        )
-    {
+            supportTxType
+        );
         framework = plasmaFramework;
     }
 
diff --git a/plasma_framework/contracts/mocks/exits/payment/routers/PaymentStandardExitRouterMock.sol b/plasma_framework/contracts/mocks/exits/payment/routers/PaymentStandardExitRouterMock.sol
index 2a4d1207f..b9ed00ff5 100644
--- a/plasma_framework/contracts/mocks/exits/payment/routers/PaymentStandardExitRouterMock.sol
+++ b/plasma_framework/contracts/mocks/exits/payment/routers/PaymentStandardExitRouterMock.sol
@@ -18,15 +18,15 @@ contract PaymentStandardExitRouterMock is PaymentStandardExitRouter {
         ITxFinalizationVerifier txFinalizationVerifier
     )
         public
-        PaymentStandardExitRouter(
+    {
+        PaymentStandardExitRouter.init(
             plasmaFramework,
             ethVault,
             erc20Vault,
             outputGuardHandlerRegistry,
             spendingConditionRegistry,
             txFinalizationVerifier
-        )
-    {
+        );
         framework = plasmaFramework;
     }
 
diff --git a/plasma_framework/contracts/mocks/utils/BitsWrapper.sol b/plasma_framework/contracts/mocks/utils/BitsWrapper.sol
index 4b2c56cbf..8c74e636d 100644
--- a/plasma_framework/contracts/mocks/utils/BitsWrapper.sol
+++ b/plasma_framework/contracts/mocks/utils/BitsWrapper.sol
@@ -20,4 +20,4 @@ contract BitsWrapper {
     {
         return Bits.bitSet(_self, _index);
     }
-}
\ No newline at end of file
+}
diff --git a/plasma_framework/contracts/src/exits/payment/PaymentExitGame.sol b/plasma_framework/contracts/src/exits/payment/PaymentExitGame.sol
index 87b0cde2e..ab9e5b0aa 100644
--- a/plasma_framework/contracts/src/exits/payment/PaymentExitGame.sol
+++ b/plasma_framework/contracts/src/exits/payment/PaymentExitGame.sol
@@ -30,15 +30,16 @@ contract PaymentExitGame is IExitProcessor, PaymentStandardExitRouter, PaymentIn
         uint256 supportTxType
     )
         public
-        PaymentStandardExitRouter(
+    {
+        PaymentStandardExitRouter.init(
             framework,
             ethVault,
             erc20Vault,
             outputGuardHandlerRegistry,
             spendingConditionRegistry,
             txFinalizationVerifier
-        )
-        PaymentInFlightExitRouter(
+        );
+        PaymentInFlightExitRouter.init(
             framework,
             ethVault,
             erc20Vault,
@@ -47,8 +48,7 @@ contract PaymentExitGame is IExitProcessor, PaymentStandardExitRouter, PaymentIn
             stateTransitionVerifier,
             txFinalizationVerifier,
             supportTxType
-        )
-    {
+        );
         plasmaFramework = framework;
     }
 
diff --git a/plasma_framework/contracts/src/exits/payment/routers/PaymentInFlightExitRouter.sol b/plasma_framework/contracts/src/exits/payment/routers/PaymentInFlightExitRouter.sol
index 61c8afed4..a02d6acf1 100644
--- a/plasma_framework/contracts/src/exits/payment/routers/PaymentInFlightExitRouter.sol
+++ b/plasma_framework/contracts/src/exits/payment/routers/PaymentInFlightExitRouter.sol
@@ -51,7 +51,7 @@ contract PaymentInFlightExitRouter is IExitProcessor, Operated, OnlyWithValue {
     event IFEBondUpdated(uint128 bondSize);
     event PiggybackBondUpdated(uint128 bondSize);
 
-    constructor(
+    function init(
         PlasmaFramework framework,
         EthVault ethVault,
         Erc20Vault erc20Vault,
@@ -105,6 +105,7 @@ contract PaymentInFlightExitRouter is IExitProcessor, Operated, OnlyWithValue {
             ethVault: ethVault,
             erc20Vault: erc20Vault
         });
+
         startIFEBond = BondSize.buildParams(INITIAL_IFE_BOND_SIZE, BOND_LOWER_BOUND_DIVISOR, BOND_UPPER_BOUND_MULTIPLIER);
         piggybackBond = BondSize.buildParams(INITIAL_PB_BOND_SIZE, BOND_LOWER_BOUND_DIVISOR, BOND_UPPER_BOUND_MULTIPLIER);
     }
diff --git a/plasma_framework/contracts/src/exits/payment/routers/PaymentStandardExitRouter.sol b/plasma_framework/contracts/src/exits/payment/routers/PaymentStandardExitRouter.sol
index 2e7534ef9..61b972ad1 100644
--- a/plasma_framework/contracts/src/exits/payment/routers/PaymentStandardExitRouter.sol
+++ b/plasma_framework/contracts/src/exits/payment/routers/PaymentStandardExitRouter.sol
@@ -42,7 +42,7 @@ contract PaymentStandardExitRouter is
 
     event StandardExitBondUpdated(uint128 bondSize);
 
-    constructor(
+    function init(
         PlasmaFramework framework,
         EthVault ethVault,
         Erc20Vault erc20Vault,
diff --git a/plasma_framework/contracts/src/exits/utils/BondSize.sol b/plasma_framework/contracts/src/exits/utils/BondSize.sol
index 9b7e14c62..bd52c4767 100644
--- a/plasma_framework/contracts/src/exits/utils/BondSize.sol
+++ b/plasma_framework/contracts/src/exits/utils/BondSize.sol
@@ -31,12 +31,13 @@ library BondSize {
         pure
         returns (Params memory)
     {
-        require(initialBondSize > 0, "initialBondSize cannot be 0");
-        require(lowerBoundDivisor > 0, "lowerBoundDivisor cannot be 0");
-        require(upperBoundMultiplier > 0, "upperBoundMultiplier cannot be 0");
-
         // Set the initial value to far in the future
         uint128 initialEffectiveUpdateTime = 2 ** 63;
+
+        require(initialBondSize != 0, "initialBondSize cannot be 0");
+        require(lowerBoundDivisor != 0, "lowerBoundDivisor cannot be 0");
+        require(upperBoundMultiplier != 0, "upperBoundMultiplier cannot be 0");
+
         return Params({
             previousBondSize: initialBondSize,
             updatedBondSize: 0,