Buying a bike for your child can be daunting, that’s why Radio developed the zuma range to make it that much easier. Based around the concept of a kid sized mtb bike, the zuma bikes are incredibly lightweight, with carefully researched geometry and designed specifically around smaller riders as the perfect balance between a bike for a child to learn the basics on, and a more advanced mtb for off-road riding conditions for weekend rides with the parents.

Frame: RADIO "ZUMA 14" frame, 6061-T6 alloy
Fork: RADIO "ZUMA 14" straight rigid fork, 6061-T6 alloy
Bars: SATORI bar, 6061-T6 alloy, 19mm griptube, 25.4mm bar bore, 1"rise
Grips: RADIO "JUNIOR" grips, 100mm, with flange
Stem: RADIO "ZUMA 30" frontload stem, alloy, 30mm reach
Headset: FSA A-headset, loose ball
Lever: PROMAX "BL-367" lever, alloy
Brakes: PROMAX "DSK-310" - mechanical disc front & rear brake
Cranks: RADIO "JUNIOR" 3pc crank, forged alloy, 89mm length
Bb : RADIO bb set, BSA, square taper, sealed bearing
Pedals: RADIO "JUNIOR" pedals, nylon
Chain: KMC chain, S1 type, 1/2" x 1/8"
Sprocket: RADIO sprocket, steel, 28t
Driver: 18t freewheel, crmo
Front Hub: RADIO disc hub, alloy shell, loose ball, 3/8"s crmo axle, 20h
Rear Hub: RADIO disc hub, alloy shell, for freewheel, sealed,3/8"s crmo axle, 20h
Front Rim: RADIO "J25SE" rim, alloy, double wall
Rear Rim: RADIO "J25SE" rim, alloy, double wall
Seat: RADIO "ZUMA 1416" railed seat
Seat Post: PROMAX "SP-2019" seat post, alloy, multi-adjust, 250mm
Seat Clamp: RADIO "SLIM" seat clamp, alloy
Tires: VEE TIRE "CROWN GEM" tires, 2.25" front & rear