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The RK Excel GB428MXZ1-130 Gold 428 Drive Chain is designed for demanding mini motocross and supercross racing applications. Built as a heavy-duty MXZ1 Mini Racing chain, it combines Chromoly steel construction with seamless rollers and bushings for dependable strength, smooth operation, and long-lasting performance.
Oversized special-alloy pins help increase durability under racing loads, while the included clip-type master link supports convenient installation. Rated for up to 150cc off-road engines and 30 horsepower, this RK Excel chain is a practical choice for riders who need reliable power transfer in a compact racing drivetrain. The gold finish adds a clean, performance-oriented appearance without compromising the chain’s intended use.
Features:
- Construction: Heavy-duty Chromoly steel chain designed for mini MX and SX racing
- Rollers and Bushings: Seamless design supports smooth, consistent operation
- Pins: Oversized special-alloy pins provide added strength and durability
- Chain Size: 428 chain with 130 links
- Tensile Strength: Rated at 4,980 pounds
- Application Rating: Suitable for off-road engines up to 150cc
- Horsepower Rating: Supports applications up to 30 horsepower
- Master Link: Clip-type master link included
The RK Excel GB428MXZ1-130 provides purpose-built performance for mini racing motorcycles and other compatible off-road applications requiring a strong, reliable 428 chain.

