Skip to content
Free shipping on eligible items at $75+Tire, wheel & large-item exclusions apply
← Back to shop

RFX

RFX Aluminum Rear Sprocket 40T Blue KTM/Husqvarna/Gas

SKU FXRS 57-40 99BU·Final Drive (chains / sprockets / belts)
$79.99

Checking availability…

View compatible vehicles

Match your year, make and model to the supplier’s listed applications before ordering.

View compatible vehicles

Shipping calculated at checkout

30-day returns on unused parts

Details

Aluminum Rear Sprocket 40T Blue KTM/Husq/Gas from Rfx. This is a sprocket, listed under Sprockets & Pulleys for off-road applications. Recorded as fitting 17 vehicle applications; confirm against your machine using part number FXRS 57-40 99BU. RFX Aluminum Rear Sprocket 40T Blue KTM/Husqvarna/Gas is part of our final drive selection.

Specs

Mpn
FXRS 57-40 99BU
Upc
5056070623583
Vehicle
Weight Lb
1.27
Shipping Class
standard
Wps Source Skus
739-3579940B

Vehicle Fitment

RFX ALUMINUM REAR SPROCKET 40T BLUE KTM/HUSQ/GAS (part FXRS 57-40 99BU)

Supplier-confirmed applications for this exact part. Match the year, make, and model below. A listed application is not confirmation for an unlisted vehicle.

Husqvarna TC 50

2017–2025

Husqvarna TC 65

2017–2024

Parts for the Same Vehicles

These parts share at least one listed vehicle application. Check each part’s fitment for your model and year.