The RK chain, with a step of 520 and a length of 116 stitches, is equipped with an innovative O-Ring XW-Ring system, which reduces friction and increases the duration. With a traction resistance of 4200 kg and an elegant gold color both outside and inside, this chain not only works impeccablely, but also adds a touch of style to your bike. The Rivetto closure ensures a safe and lasting connection. The ZF crown, with a step of 520 and an internal diameter of 125 mm, is designed for a precise assembly thanks to the 150 mm PCD and the six flared bolts. With 43 teeth and made of dual material, this crown offers an ideal combination of robustness and lightness, while its black color gives an aggressive and sporting appearance. The JT pignon, a silenced pign with a small graft fixing completes t.
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