RFX Race 13 Teeth Gearbox output pinionRef : RFX01203A / 1123267002

RFX Race Sprocket 13 Teeth - Manufacturer Ref: FXFS 25-13 55ST

Designed for lightweight machines and cross/urban use, this RFX front sprocket is CNC machined from high-strength steel and then carburized to enhance surface hardness (≈60 Rockwell). Its precise manufacturing with tight tolerances ensures smooth engagement with a 420 pitch chain and helps to minimize premature wear of the transmission.

This 13-tooth sprocket, silver finish, standard version, is aimed at riders looking for a robust and reliable replacement part for their front gearing. Choosing a smaller or larger sprocket allows for adjustment of acceleration and top speed according to riding style and terrain — please check compatibility before installation.

Features:

• Brand: RFX
• Material: carburized steel
• Number of Teeth: 13
• Chain Pitch: 420
• Finish: silver, standard version
• Machining: CNC with tight tolerances

Compatibility (examples): KAWASAKI KX 85 II (2026), YAMAHA TT-R 110 E (CE17) (2022), SUZUKI RM 65 (2005). Before placing an order, check the fitment on your model (shaft, spacing, and chain pitch).