Renthal 240U-530-42P-HA Ultralight Rear Sprocket Chain Sprockets - 42-Tooth 530

The Renthal 240U-530-42P-HA is a 42-tooth, 530-pitch Ultralight rear chainwheel engineered for serious motocross, supercross, and enduro riders who demand the highest level of performance and durability. CNC machined in Manchester, UK from specially enhanced 7075 T6 aluminum alloy, this sprocket delivers exceptional strength while weighing 66% less than a comparable steel sprocket — minimizing unsprung rear wheel mass for improved power transfer and handling response.

Key Features:

• 530 Chain Pitch / 42 Teeth — precise sizing for direct-fit replacement or performance gearing upgrade
• 7075 T6 Aluminum Alloy Construction — high-strength, race-proven material used on factory team machines worldwide
• 66% Lighter Than Steel — dramatically reduces rotating unsprung mass for improved throttle response and acceleration
• CNC Machined to Tight Tolerances — ensures exceptional concentricity, accuracy of fit, and consistent load distribution
• Advanced Tooth Profile — computer-engineered geometry promotes smooth chain engagement and maximum power transfer
• Self-Cleaning Mud Grooves — machined grooves between every tooth on both sides help prevent dirt and debris buildup
• Hard Anodized Finish (Gold) — integral surface treatment significantly increases surface hardness and wear resistance for extended chainwheel life
• Sold individually

Renthal Ultralight rear chainwheels are trusted by more factory motocross and supercross race teams than any competing brand. The 240U-530-42P-HA is built to endure the relentless demands of off-road and track competition while keeping your drivetrain running at peak efficiency.