The Radio MTB Sonar Free Coaster HG Rear Hub is a lightweight, durable hub designed for freeride and trail MTB bikes with 148x12mm spacing. Featuring a patented hybrid Free Coaster system, it offers smooth, low-maintenance performance with adjustable slack and magnetic pawl retention. Convertible to a regular cassette hub without extra parts, it reduces pedal kickback and rolls efficiently both forwards and backwards. Developed with pro rider input, it combines the benefits of Free Coaster and cassette hubs in one advanced design.

BEARINGS: Hub - 6902-2RS (x2), Driver - 15267-RS/6902-2RS

SPOKES: 32h

DRIVER: Shimano HG 35mm Freehub Body (SRAM XD sold sep.)

WEIGHT: 300g (10.5oz)

FEATURES:

• Freeride MTB specific Free Coaster hub with 148x12mm spacing for trail/enduro bikes

• First hub of its kind in MTB, exclusive to Radio Bikes

• Super lightweight hub using WETHEPEOPLE patented “HYBRID” Internals
adjustable gap / slack

• Zero drag system makes it one of the fastest hubs out
“MagnaDrive” Magnetic pawl retention system

• Shimano HG free hub body, SRAM XD sold separately

• 6 bolt-disc mount

• 33% lighter than a conventional clutch style Free Coaster hub

• Incredibly durable and maintenance-free system

• Slack system helps eliminate “pedal kickback”