PBR ultra-light aluminium 4478 - 428 50 teeth SprocketRef : PBR01582A / 1108848002

PBR ultra-light aluminium sprocket 4478 - 50 teeth (Ref. 4478 50 L)

Designed by PBR, a recognised specialist for its expertise in competition, this 4478 sprocket stands out for its format intended for urban use. The reference 4478 50 L corresponds to an aluminium sprocket with a chain pitch of 428 and equipped with 50 teeth, suitable for the transmissions of small machines and 50 cc derivatives.

• Material: Aluminium (designated "ultra-light" by the manufacturer)
• Number of teeth: 50
• Chain pitch: 428
• Type: Sprocket 4478, manufacturer reference 4478 50 L
• Universe: Urban

Ideal for riders looking for a lightweight drive component specific to small displacements, this sprocket is compatible with transmissions equipped with a 428 chain. It is particularly suitable for BETA RR 50 Motard (2025), RR 50 Enduro (2025), and RR 50 Motard Track (2024) models. Installation and verification by a mechanic or an experienced amateur are recommended to ensure correct chain tension adjustment and optimal longevity.