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Crupi’s Pivotal seat posts are lighter in weight than traditional posts and a much more simple seat installation process
The Shimano DXR MX71 Cranks at J&R Bicycles feature updated design elements created specifically for the rigorous demands of the BMX racetrack
Front Hub: 28h Alloy Sealed-Bearing
The liner is an X-Static material that is moisture-wicking and quick-drying
Weight: 15mm: 58g (average)
Radio Raceline Helium Pro Disc Brake Mounts Size:15mm Crupi’s Pivotal seat posts areThe Radio Raceline Helium Pro Disc Brake Mounts make it super easy to convert Helium and Quartz Pro sized frames to accept a disc brake. Made from cold forged CNC'd 6061 T6 aluminum alloy, this mount is built to last without adding much weight. Made to work with 15mm through axle FEATURES Cold forged and CNC machined 6061 T6 alloy Made to work with 15mm Hubs only