Renthal Rear Sprocket 46T Aluminum 520 Chain Ducati Monster 821 435U-520-46P-HA

Shaving 66% of rotational mass off your rear sprocket translates directly to snappier acceleration and more responsive throttle feel—critical gains for both track work and spirited street riding. The Renthal 46T aluminum sprocket cuts unsprung weight without sacrificing durability, giving you the performance upgrade that actually delivers measurable results. If you're running a Ducati Monster 821 or similar platform, this is a bolt-on efficiency gain that compounds with every corner and acceleration zone.

Engineered from 7075-T6 aluminum and hard anodized for wear resistance, this CNC-machined sprocket is built to handle aggressive riding conditions while maintaining precision fitment. The 46-tooth configuration works seamlessly with 520-chain drivetrains, offering a proven balance between top-end capability and mid-range pull. Installation is straightforward—no special tools or fabrication required.

• Material: 7075-T6 aluminum alloy
• Tooth Count: 46T
• Chain Size: 520
• Weight: 1.05 lbs
• Finish: Hard anodized
• Construction: CNC-machined
• Fitment: Ducati Monster 821
• Installation: Bolt-on
• MPN: 435U-520-46P-HA