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Renthal 4 Bolt - 420 Rear Sprocket
As low as
£57.95
In stock
%1 in stock
Part Number
Ren-420
Renthal 4 Bolt - 420 Pitch Rear sprocket.
To convert GasGas trials bikes to run the smaller lighter 420 pitch chain.
GasGas 250cc, original sprockets at 520 (10 / 42), equivalent at 420 (12 / 50).
GasGas 125cc, original sprockets at 520 (9 / 48), equivalent at 420 (11 / 58).
Converting the GasGas 125 to these 420 size sprockets and chain reduces the weight of the bike by over 1/2 a Kg.
The preferred gearing on the 125 with the standard chain is 9/48, to achieve the same ratio with this small pitch chain you need to run 11T front and a 58T rear and use a 130link 420 chain.
| Manufacturer | Renthal |
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