R4 Rear Hub PartsA wide selection of R4 replacement hub parts and bearings for all of your service needs! Click here to find the full service instructions.

into a pint sized equivalent

Its ergonomic shaping helps reduce pressure points and promotes efficient pedaling

One of the design goals was to minimise friction

Made from 6061 alloy

freedom of movement

now meet the HiFi BSX

A thin profile and chamfered corners maximise clearance

Large fluid capacity and now a little lower in height for easier viewing

📏 These are a standard-fit riding pant

but still maintain compliance and quality ride feel that Chromag are known for

The alloy axle aids stiffness the use of press on end caps prevents over preloading the hub bearings or ends caps backing off in use

2x HORST PIVOT CONICAL WASHER 19X6