diff --git a/Cargo.lock b/Cargo.lock
index af14ecfb3343c..afb4d9aae9442 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1991,6 +1991,9 @@ dependencies = [
 name = "bp-asset-hub-rococo"
 version = "0.4.0"
 dependencies = [
+ "bp-bridge-hub-cumulus",
+ "bp-messages",
+ "bp-runtime",
  "bp-xcm-bridge-hub-router",
  "frame-support",
  "parity-scale-codec",
@@ -2004,6 +2007,9 @@ dependencies = [
 name = "bp-asset-hub-westend"
 version = "0.3.0"
 dependencies = [
+ "bp-bridge-hub-cumulus",
+ "bp-messages",
+ "bp-runtime",
  "bp-xcm-bridge-hub-router",
  "frame-support",
  "parity-scale-codec",
diff --git a/bridges/chains/chain-asset-hub-rococo/Cargo.toml b/bridges/chains/chain-asset-hub-rococo/Cargo.toml
index 16425544076e1..ac194d5656bd5 100644
--- a/bridges/chains/chain-asset-hub-rococo/Cargo.toml
+++ b/bridges/chains/chain-asset-hub-rococo/Cargo.toml
@@ -22,6 +22,9 @@ frame-support = { workspace = true }
 sp-core = { workspace = true }
 
 # Bridge Dependencies
+bp-bridge-hub-cumulus = { workspace = true }
+bp-messages = { workspace = true }
+bp-runtime = { workspace = true }
 bp-xcm-bridge-hub-router = { workspace = true }
 testnet-parachains-constants = { features = ["rococo"], workspace = true }
 
@@ -31,6 +34,9 @@ xcm = { workspace = true }
 [features]
 default = ["std"]
 std = [
+	"bp-bridge-hub-cumulus/std",
+	"bp-messages/std",
+	"bp-runtime/std",
 	"bp-xcm-bridge-hub-router/std",
 	"codec/std",
 	"frame-support/std",
diff --git a/bridges/chains/chain-asset-hub-rococo/src/lib.rs b/bridges/chains/chain-asset-hub-rococo/src/lib.rs
index f4fb78b4e1d63..7c4f2107e001b 100644
--- a/bridges/chains/chain-asset-hub-rococo/src/lib.rs
+++ b/bridges/chains/chain-asset-hub-rococo/src/lib.rs
@@ -23,7 +23,14 @@ extern crate alloc;
 use codec::{Decode, Encode};
 use scale_info::TypeInfo;
 
+pub use bp_bridge_hub_cumulus::*;
+use bp_messages::*;
+use bp_runtime::{Chain, ChainId, Parachain};
 pub use bp_xcm_bridge_hub_router::XcmBridgeHubRouterCall;
+use frame_support::{
+	dispatch::DispatchClass,
+	sp_runtime::{RuntimeDebug, StateVersion},
+};
 use testnet_parachains_constants::rococo::currency::UNITS;
 use xcm::latest::prelude::*;
 
@@ -74,3 +81,40 @@ pub fn build_congestion_message<RuntimeCall>(
 
 /// Identifier of AssetHubRococo in the Rococo relay chain.
 pub const ASSET_HUB_ROCOCO_PARACHAIN_ID: u32 = 1000;
+
+/// AssetHubRococo parachain.
+#[derive(RuntimeDebug)]
+
+pub struct AssetHubRococo;
+
+impl Chain for AssetHubRococo {
+	const ID: ChainId = *b"ahro";
+
+	type BlockNumber = BlockNumber;
+	type Hash = Hash;
+	type Hasher = Hasher;
+	type Header = Header;
+
+	type AccountId = AccountId;
+	type Balance = Balance;
+	type Nonce = Nonce;
+	type Signature = Signature;
+
+	const STATE_VERSION: StateVersion = StateVersion::V1;
+
+	fn max_extrinsic_size() -> u32 {
+		*BlockLength::get().max.get(DispatchClass::Normal)
+	}
+
+	fn max_extrinsic_weight() -> Weight {
+		BlockWeightsForAsyncBacking::get()
+			.get(DispatchClass::Normal)
+			.max_extrinsic
+			.unwrap_or(Weight::MAX)
+	}
+}
+
+impl Parachain for AssetHubRococo {
+	const PARACHAIN_ID: u32 = ASSET_HUB_ROCOCO_PARACHAIN_ID;
+	const MAX_HEADER_SIZE: u32 = MAX_ASSET_HUB_HEADER_SIZE;
+}
diff --git a/bridges/chains/chain-asset-hub-westend/Cargo.toml b/bridges/chains/chain-asset-hub-westend/Cargo.toml
index 3ad2cf9359bfd..f84b469861e10 100644
--- a/bridges/chains/chain-asset-hub-westend/Cargo.toml
+++ b/bridges/chains/chain-asset-hub-westend/Cargo.toml
@@ -22,6 +22,9 @@ frame-support = { workspace = true }
 sp-core = { workspace = true }
 
 # Bridge Dependencies
+bp-bridge-hub-cumulus = { workspace = true }
+bp-messages = { workspace = true }
+bp-runtime = { workspace = true }
 bp-xcm-bridge-hub-router = { workspace = true }
 testnet-parachains-constants = { features = ["westend"], workspace = true }
 
@@ -31,6 +34,9 @@ xcm = { workspace = true }
 [features]
 default = ["std"]
 std = [
+	"bp-bridge-hub-cumulus/std",
+	"bp-messages/std",
+	"bp-runtime/std",
 	"bp-xcm-bridge-hub-router/std",
 	"codec/std",
 	"frame-support/std",
diff --git a/bridges/chains/chain-asset-hub-westend/src/lib.rs b/bridges/chains/chain-asset-hub-westend/src/lib.rs
index 89b5cddf2d532..6f4bd33a78470 100644
--- a/bridges/chains/chain-asset-hub-westend/src/lib.rs
+++ b/bridges/chains/chain-asset-hub-westend/src/lib.rs
@@ -20,10 +20,16 @@
 
 extern crate alloc;
 
+pub use bp_bridge_hub_cumulus::*;
+use bp_messages::*;
+use bp_runtime::{Chain, ChainId, Parachain};
+pub use bp_xcm_bridge_hub_router::XcmBridgeHubRouterCall;
 use codec::{Decode, Encode};
+use frame_support::{
+	dispatch::DispatchClass,
+	sp_runtime::{RuntimeDebug, StateVersion},
+};
 use scale_info::TypeInfo;
-
-pub use bp_xcm_bridge_hub_router::XcmBridgeHubRouterCall;
 use testnet_parachains_constants::westend::currency::UNITS;
 use xcm::latest::prelude::*;
 
@@ -75,3 +81,39 @@ pub fn build_congestion_message<RuntimeCall>(
 
 /// Identifier of AssetHubWestend in the Westend relay chain.
 pub const ASSET_HUB_WESTEND_PARACHAIN_ID: u32 = 1000;
+
+/// AssetHubWestend parachain.
+#[derive(RuntimeDebug)]
+pub struct AssetHubWestend;
+
+impl Chain for AssetHubWestend {
+	const ID: ChainId = *b"ahwd";
+
+	type BlockNumber = BlockNumber;
+	type Hash = Hash;
+	type Hasher = Hasher;
+	type Header = Header;
+
+	type AccountId = AccountId;
+	type Balance = Balance;
+	type Nonce = Nonce;
+	type Signature = Signature;
+
+	const STATE_VERSION: StateVersion = StateVersion::V1;
+
+	fn max_extrinsic_size() -> u32 {
+		*BlockLength::get().max.get(DispatchClass::Normal)
+	}
+
+	fn max_extrinsic_weight() -> Weight {
+		BlockWeightsForAsyncBacking::get()
+			.get(DispatchClass::Normal)
+			.max_extrinsic
+			.unwrap_or(Weight::MAX)
+	}
+}
+
+impl Parachain for AssetHubWestend {
+	const PARACHAIN_ID: u32 = ASSET_HUB_WESTEND_PARACHAIN_ID;
+	const MAX_HEADER_SIZE: u32 = MAX_ASSET_HUB_HEADER_SIZE;
+}
diff --git a/bridges/chains/chain-bridge-hub-cumulus/src/lib.rs b/bridges/chains/chain-bridge-hub-cumulus/src/lib.rs
index f626fa6df010b..f665d1e224da9 100644
--- a/bridges/chains/chain-bridge-hub-cumulus/src/lib.rs
+++ b/bridges/chains/chain-bridge-hub-cumulus/src/lib.rs
@@ -39,6 +39,9 @@ use frame_support::{
 use frame_system::limits;
 use sp_std::time::Duration;
 
+/// Maximal asset hub header size.
+pub const MAX_ASSET_HUB_HEADER_SIZE: u32 = 4_096;
+
 /// Maximal bridge hub header size.
 pub const MAX_BRIDGE_HUB_HEADER_SIZE: u32 = 4_096;
 
diff --git a/prdoc/pr_8063.prdoc b/prdoc/pr_8063.prdoc
new file mode 100644
index 0000000000000..803c976870026
--- /dev/null
+++ b/prdoc/pr_8063.prdoc
@@ -0,0 +1,12 @@
+title: 'Bridges: Add initial primitives for AssetHub bridging'
+doc:
+- audience: Runtime Dev
+  description: |-
+    Add initial primitives for AssetHubRococo and AssetHubWestend bridging
+crates:
+- name: bp-asset-hub-rococo
+  bump: minor
+- name: bp-asset-hub-westend
+  bump: minor
+- name: bp-bridge-hub-cumulus
+  bump: minor