These rings fit any 120 BCD crankset or 4-bolt spider

Just got a Boost Frame or Fork and need to get your standard hubs to fit

normally at the handlebar end

Part Number 398-00-682 - 34

it offers the best of both worlds

Tubolito Tubo MTB Tube - 42mm Presta Removable Valve Core - 2.5-3.0 Inch - 29 Inch Needs Images These rings fit any 120Sick of having to carry around a big, bulky, heavy spare tube in case you have a blowout on the trails? Well, Tubolito is here with the perfect solution! These ultralight and extra durable tubes are manufactured from a special thermoplastic elastomer that was originally developed for use in speaker cones of all things. They are far less bulky, and more puncture resistant than standard butyl inner tubes and can easily be slipped into a pocket or