The RK Excel GB420MXZ4-CL is a gold clip-style master link designed for RK MXZ4 420 chains used in supercross and motocross racing. It provides a secure chain connection for compatible off-road applications and is intended for riders who require dependable performance under demanding race conditions.
Built for use with RK Excel MXZ4 chains, this master link complements their chromoly steel construction, seamless rollers and bushings, chromized pins, and heat-treated components produced with RK’s HIT (Heat Induction Transfer) process. The clip-style design supports practical installation and service when paired with the correct chain and drivetrain configuration.
Fitment: Designed for compatible RK Excel GB420MXZ4 chains and off-road motorcycles using a 420 chain size. Verify chain model, pitch, drivetrain specifications, and manufacturer recommendations before installation. This component is intended for motocross and supercross racing applications and is not recommended for street use. The manufacturer part number is GB420MXZ4-CL, and the vendor part number is 691-11002G.
Features:
- Brand: RK Excel
- Manufacturer Part Number: GB420MXZ4-CL
- Vendor Part Number: 691-11002G
- Chain Size: 420
- Model: MXZ4
- Finish: Gold
- Master Link Type: Clip style
- Application: Supercross, motocross, and off-road racing
- Fitment: Compatible with RK Excel MXZ4 420 chains
- Street Use: Not recommended