How many pistons: This is the 4-piston version

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thigh and tailbone while also having an anatomical foam pattern for comfort and a relaxed tapered leg fit

74 calipers with adaptors to suit all mount options

30mm internal width rims means that you can run wide tyres and the Centrelock rotor attachment allows for the use of Shimano's Freeza rotors which maximise the cooling potential of your brakes

Fox Proframe RS MIPS Helmet - S - Mash Bordeaux PDP|Option How many pistons: This isThe Fox Proframe RS Helmet was designed from the ground up to be the lightest, most effective, and most comfortable full face Fox has ever produced. Although light on weight, the Proframe RS is heavy on protection, featuring a Varizorb EPS foam inner shell to protect against both high and low speed impacts along with MIPS Integra technology to further protect the brain from rotational forces. Advanced in moulding allows the shock absorbing inner shell