Description
VORTEX rear sprocket steel 43t-520 black yam. Manufacturer part number 642AS-43.
WPS part number 3-642AS-43.
VORTEX rear sprocket steel 43t-520 black yam.
In stock
VORTEX rear sprocket steel 43t-520 black yam. Manufacturer part number 642AS-43.
WPS part number 3-642AS-43.
WPS lists this part for the following vehicles. Match your exact model and year.
Follow the position, mounting and installation notes in the product description. Modified vehicles may require different parts.
| Years | Make | Model |
|---|---|---|
| 2015–2019 | Yamaha | YZF-R1 |
| 2015–2019 | Yamaha | YZF-R1M |
Source: WPS vehicle-fitment data · WPS part 3-642AS-43 · Checked November 11, 2026.
| Weight | 1.9 lbs |
|---|---|
| Dimensions | 11.88 × 11.88 × 0.42 in |
Check chain pitch, sprocket tooth count and the installed gearing before ordering.
Select your motorcycle to check for matching parts.

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