PBR Aluminium Standard Sprocket - 415 (Manufacturer ref: 4644 42 L): a lightweight and reliable sprocket designed for small displacement motocross practices. PBR presents here a simple and robust part, designed for transmissions equipped with a 415 pitch chain and seeking a suitable gearing for 50 cc motorcycles.
- Material: aluminium — lightweight construction to reduce unsprung masses.
- Number of teeth: 42 — ratio suited to the needs of acceleration and handling off-road.
- Chain pitch: 415 — compatible with the running gear of small motocross bikes.
- Type: sprocket 4644 — dimensions and bolt patterns conforming to PBR references.
Ideal for riders of KTM 50 SX, Husqvarna TC 50 and other 50 cc models (2025 models listed), this sprocket offers a simple and direct replacement solution. Its aluminium keeps the wheel-free assembly lighter, which is felt in the responsiveness and agility of the machine on tight sequences and jumps.
Standard installation and maintenance: check the condition of your 415 chain and the manufacturer's recommended torque during installation. Product intended for motocross use, for those who want an original PBR sprocket without geometry modification.
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