Supersprox and DID Chain & Aluminium Sprocket Kit for Yamaha R1 1998-2003 - 520 Conversion - Standard Gearing

Includes Free mainland UK shipping

Save £10 when you buy a complete chain and sprocket kit

This is a complete 520 conversion chain and sprocket kit for the bike listed, based on the original fitment, gearing and chain size.

The Kit comes complete with the following

-Supersprox Stealth rear sprocket - Choice of colour

Used in racing since 1959. Supersprox aluminium sprockets are produced to the highest standards. The smart choice for racing, where weight saving is the ultimate goal.  It is available anodised in various colours and can be selected from the dropdown.

-Steel front sprocket

This is usually a Supersprox steel countershaft sprocket, however some variants are offered in an alternative brand or model, and will be noted in the dropdown

-Choice of chain - You choose the make and model

We stock a selection of chains.  You can choose the make, grade and colour in the dropdown.  Note that each dropdown contains a manufacturer recommended maximum CC which we would advise you follow.

All chains include a rivet link (with the exception of the DID 520 VX Pro Street - which also includes the clip link option).  Rivet links will require a chain riveter to join.  Extra links are available separately.

Supersprox was founded in Wales in 1959, by Roger Maughfling.  Roger was a passionate enthusiast and loved all things motorised, but particularly motorcycles. He opened a motorcycle repair shop in Mid Wales. Following WW2, parts were in short supply, so Roger began to make his own sprockets for bikes in the shop.   Eventually the motorcycle repair shop turned into a small sprocket production factory.  The company grew, and the market began to demand higher quality parts. By 1975, the company had its own product name (Supersprox) and was to be found on bikes rolling out of Husqvarna, Maico, Triumph and Norton. Supersprox are now true world leaders in the production of performance motorcycle sprockets, from Aluminium rear sprockets and steel countershaft sprockets to the beautifully designed Stealth Sprocket which mixes the best of both to provide longevity, style and weight saving. Supersprox are suppliers and technical partners to many motorcycle producers inc KTM, Husqvarna, Honda HRC and Yamaha. 


Supersprox Stealth Sprockets


What is a Stealth Sprocket?

A Stealth sprocket is a steel sprocket, riveted to an alloy core or centre.  This provides the best combination of weight saving and the longevity of a steel sprocket - similar to a floating brake disc.

Are they better than aluminium?

A stealth sprocket will outlast any aluminium sprocket by up to 3 times.  There is the extra weight, however the steel section of the sprocket is relatively small and the extra weight is easily outdone by the longevity.

Are they better than steel?

It will last as long as a steel sprocket, but it isn't possible to create the level of strength with a steel sprocket of the same weight as a Stealth sprocket.  You may find light steel sprockets, however they will not be as durable or be able to handle the torque produced by modern bikes.

Are the rivets strong enough?

Supersprox have been riveting sprockets for over 20 years, they have installed over 6 million rivets and not had a single failure.  

It's known that a Stealth sprocket has covered 20,000 miles and they are used by factory teams in the Dakar Rally and Baja 1000. 

The construction of a Stealth Sprocket

Supersprox Stealth Sprocket


Supersprox Edge Sprockets

 Now enhance your steel sprockets for other bikes

If you're looking for a combination of the best sprockets on the market, and a durable chain from either AFAM, DID or RK, please view our Chain and Sprocket Kits page - you can filter by bike to find the kit you need.

We offer Standard Gearing Kits - these are to the original manufacturers specifications, or we can offer a "Choose Your Gearing" kit, allowing to select the size of the sprockets you require.

 Here at WSC Performance, we pride ourselves on offering the best sprockets and chain combinations available, we are constantly expanding our stock of Supersprox Sprockets and we can offer the full range by order.

If you can't see what you want, please contact us here.  Please note - delivery times can vary. 

Are you in the Trade and want to sell Supersprox, contact us!