Chain & Sprockets
- RX3 X-ring chain — The chain uses X-ring seals.
- Steel rear — The rear is steel, laser cut.
Specs
| Part number | CK6378 |
| Chain | Vortex 525 RX3, X-ring |
| Chain size | 525 |
| Chain length | 114 links |
| Chain finish | Black |
| Front sprocket | 16 teeth, steel |
| Rear sprocket | 41 teeth, steel |
| Master link | Rivet type |
| Suggested use | Street |
Fitment
Year(s) — Make / Model — Stock Gearing — Stock Chain
| 2015–2026 | Yamaha YZF-R1 | 16T / 41T | 525 — 114 links |
| 2015–2026 | Yamaha YZF-R1M | 16T / 41T | 525 — 114 links |
Gearing
This kit matches the stock 16-tooth front and 41-tooth rear on the YZF-R1 and R1M. Installing it keeps your bike at factory stock gearing.
One practical note: the chain in this kit is cut to 114 links for stock gearing.
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IMPORTANT: Please Review Your Owner’s Manual for Exact Amounts or Sizing of This Product!
Speak to one of our experts today:
469-890-0123
VORTEX
SKU:1230-1207
Description:Vortex 525 RX3 Steel Chain and Sprocket Kit – Yamaha YZF-R1 / R1M ’15–26
Product Overview
A complete drive replacement for the 2015-on YZF-R1 and R1M: a Vortex 525 RX3 X-ring chain in black, a 16-tooth steel front sprocket and a 41-tooth steel rear. That is the gearing the R1 left the factory with.
The chain comes at 114 links, which is the stock length. It has a rivet-type master link.
Both sprockets are steel.
This kit is not listed for the YZF-R1S. It is listed for the 2015-on R1 and R1M only.
Key Technology & Design
- RX3 X-ring chain — The chain uses X-ring seals.
- Steel rear — The rear is steel, laser cut.
Specs
| Part number | CK6378 |
| Chain | Vortex 525 RX3, X-ring |
| Chain size | 525 |
| Chain length | 114 links |
| Chain finish | Black |
| Front sprocket | 16 teeth, steel |
| Rear sprocket | 41 teeth, steel |
| Master link | Rivet type |
| Suggested use | Street |
Fitment
Year(s) — Make / Model — Stock Gearing — Stock Chain
| 2015–2026 | Yamaha YZF-R1 | 16T / 41T | 525 — 114 links |
| 2015–2026 | Yamaha YZF-R1M | 16T / 41T | 525 — 114 links |
Gearing
This kit matches the stock 16-tooth front and 41-tooth rear on the YZF-R1 and R1M. Installing it keeps your bike at factory stock gearing.
One practical note: the chain in this kit is cut to 114 links for stock gearing.



