PBR ultra-light aluminium 4649 - 520 50 teeth SprocketRef : PBR01554A / 1075382003

PBR Ultra-Light Aluminium Sprocket 4649 - 520: a sprocket designed for those who want to lighten the transmission without compromising on robustness. Machined from aluminium, this 50-tooth sprocket with a 520 pitch features a performance-oriented design for Cross and Roadster motorcycles. Its "ultra-light" design aims to reduce unsprung mass and rotational inertia of the rear wheel, providing a sharper response feel during acceleration.

• Brand: PBR — Manufacturer's ref: 4649 50 L
• Material: Aluminium, finish suitable for road and off-road motorcycle use
• Number of teeth: 50 (520 chain pitch)
• Type: 4649 sprocket compatible with 520 transmissions
• Practical advantages: reduced mass, meticulous machining, and rigorous quality control for long-lasting performance

Designed from PBR's competitive experience, this sprocket is aimed at riders who want to optimise the mechanical behaviour of their motorcycle while maintaining a quality part. Always check compatibility with your model (number of holes and pitch) before installation. Examples of frequently fitted motorcycles: BETA RR 480 4T X-PRO (2026), VOGE 300 RALLY (2022), BETA RR 480 4T RACE (2026).