RK 520 GXW Chain & Sprocket Race Kit | Yamaha YZF-R1 | 15+


Lower gearing for greater acceleration and low down performance. You’ll notice the first time you ride your bike, popping wheelies with ease!

Please add any motorcycle modifications such as exhaust type, whether full system or de-cat system, filter etc.
Please Note: - It is your responsibility to ensure you have provided all relevant make and model details and that they are accurate. Dynobike will in no way be held responsible for any modifications made to your ECU whatsoever. This will void most warranties. This modification is not for public roads or highway use and does not comply with emission and noise regulations for Australia. Suitable for closed circuit track use only. It is illegal for restricted license holders to ride modified a motorcycle on public roads. Dynobike Pty Ltd is not responsible for any damages, problems, or fees associated with the tampering of emissions and noise controls.
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Racing has a way of improving the bread.

Light weight 520 RK X ring racing chain and sprockets are a great example. Improved low down response, torque and acceleration you feel instantly. We’ve worked out the best combination for road and ride days. Or for racing application just ask us what sizes you need!

The best performance add on you’ll every purchase at this price and a great custom look to improve the aesthetics of your bike

RK/Vortex Sprockets

Front: 15T RK Sprocket (1 tooth smaller) 31-YC2-15

15 Teeth, Front Steel Sprocket
Suit 520 Pitch Chain.
Precision machined for enhanced power delivery and efficiency.


VORTEX Alloy Rear Sprocket 520-41T Black: 39-0642-41AZK 

Lightweight Aluminum Racing Sprocket

100% CNC manufactured in the USA
Specially formulated alloy per Vortex specifications
Unique tooth design increases sprocket longevity
Vortex patented sprocket design is unlike any other sprocket


RK 520GXW x 120L XW Ring Chain Gold RL – 12-52W-120GD

RK’s ‘XW’ Ring Drive Chain – GB520GXW 120 Link per pack
Gold plates with natural finish chain rollers and pins.
Made in Japan with the best Japanese Technology!
Suited for ROAD RACING, SPORT, TOURING motorcycles up to 1200cc
and OFF ROAD motorcycles up to 750cc.
This extreme performance XW-ring chain is the BEST high-speed, extreme heat performance chains available today. GXW chain will enhance acceleration and reduce horsepower drag losses.
Utilising high tensile strength components and combined with the XW-Ring featuring quad lubrication pools and 6 contact seal points to deliver an affordable, long lasting performance chain.
Outstanding wear life compared to standard or basic ‘O’ ring chains.
Each chain pack is supplied with a Rivet Type Joining Link –
comprising [Pin Plate, Outer Plate, XW’rings x 4 and assemble chain grease].
Note: There is NO Clip Type Joining Link available for this chain.

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Make Model Year
Yamaha YZF-R1 2015 - 2022

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