At DMG Motorsports, we present the RK Excel GB525ZXW Drive Chain in Gold — a race-bred, 150-link powerhouse engineered for riders who demand nothing less than the absolute best from their drivetrain. Born from the same MotoGP and FIM Suzuka 8 Hour Endurance racing technology that has dominated the track, the GB525ZXW is RK Excel's flagship hyper-performance street chain for ultra-high-displacement motorcycles. Whether you're riding a large-displacement street machine, an extended swingarm build, or a high-horsepower track weapon, this chain delivers the low friction, exceptional tensile strength, and unwavering consistency that serious riders require. With an eye-catching gold finish and proven race heritage behind every link, the GB525ZXW is the chain that wins — on and off the track.

Features:

• Race-Proven ZXW Technology: Features MotoGP and FIM Suzuka 8 Hour Endurance technology, with 35 first-place finishes out of 39 races at the FIM Suzuki 8 Hour Endurance Race
• XW-Ring Seal Design: Three contact lips and two lubrication pools per seal guard against dirt, debris, high-speed abrasion, heat buildup, and lubricant loss under extreme conditions
• Impressive Tensile Strength: Rated at 10,430 lbs tensile strength for the 525 pitch — built to withstand the extreme loads of high-performance race engines
• High-Displacement Rated: Supports up to 1,300cc MAX CC racing and up to 220 HP for demanding street and track applications
• Reinforced Construction: Made with the best reinforced components and RK's original XW-Ring for maximum strength and long wear-life
• Ideal for Extended Swingarms: Engineered specifically for high-speed, high-horsepower applications, large-displacement motorcycles, and extended swingarm machines
• 150-Link Length: Extra-long 150-link configuration accommodates custom and modified builds
• Rivet-Type Master Link Included: Comes complete with a rivet-type connecting link for a secure, permanent connection
• 525 Pitch / Gold Finish: Classic gold colorway with max chain width of 23.5mm; pitch and finish suited for premium street and performance builds
• Dual Racing Heritage: Shares the same racing DNA as RK's 530PRODR drag racing chain — combining endurance and drag racing technology in one elite street chain