Manufacturer Ref: 2240-520-48GPOR — RENTHAL Twinring aluminum Ultra-Light mud-resistant hard anodized rear sprocket - 520. Designed for demanding motocross and roadster riders, this bi-component sprocket combines lightness and durability for reliable transmission on both the track and the road.

• Type: Twinring (bi-component) with inner part made of 7075 T6 aluminum
• Teeth: heat-treated hardened steel tooth ring, electroplated nickel
• Finish: hard anodized mud-resistant, orange color
• Chain Compatibility: pitch 520 — 48 teeth
• Machining: CNC precision

The Twinring construction combines a machined inner core to limit weight and a reinforced metal tooth ring assembled for durability. The flat profile in 7075 T6 aluminum allows for a weight reduction compared to stock sprockets, while the pressed steel ring ensures high mechanical strength and increased longevity. The hard anodization and mud-resistant design limit residue buildup, making it practical for muddy outings or daily commutes.

Standard mounting 520, 48 teeth — available in orange to customize your transmission. Suitable for models such as GAS GAS SM 700 (2026), KTM 690 SMC R (2026), and DUCATI DESMO 450 MX (2026) while adhering to manufacturer specifications. A sprocket designed for riders who seek reliability, low weight, and a refined finish.