- FRAME: RADIO "ZUMA 20" frame, 6061-T6 alloy
- FORK: RADIO "ZUMA 1620 straight rigid fork, 6061-T6 alloy
- HANDLEBAR: RADIO "ZUMA 20" bar, 6061-T6 alloy, 31.8mm bar bore, 1"rise
- GRIPS: RADIO "ZUMA" grips, 110mm, flangeless
- STEM: RADIO "ZUMA 45" frontload stem, alloy, 45mm reach
- HEADSET: FSA A-headset, loose ball
- BRAKE LEVER: PROMAX "BL-367" lever, alloy
- BRAKE: TEKTRO "MD280", mechanical disc front & rear brake, 140mm rotors
- CRANK: RADIO "ZUMA" 3pc crank, forged alloy, 145mm length
- BB: RADIO bb set, BSA, square taper, sealed bearing
- PEDALS: RADIO "JUNIOR" pedals, nylon
- CHAIN: KMC chain, Z1 narrow type, 1/2" x 3/32"
- SPROCKET: RADIO sprocket, steel, 32t, narrow wide
- DRIVER: MICROSHIFT, CS-H071, 12-28t, 7speed
- SHIFTER: MICROSHIFT, TS38-7R, 7speed
- DERAILLEUR: MICROSHIFT, RD-M21SS, 7speed
- FRONT HUB: RADIO disc hub, alloy shell, loose ball, QR crmo axle, 20h
- REAR HUB: RADIO "ZUMA" disc cassette hub, alloy, sealed, QR, 20h
- FRONT RIM: RADIO "J25SE" rim, alloy, double wall, 20h
- REAR RIM: RADIO "J25SE" rim, alloy, double wall, 20h
- SEAT: RADIO "ZUMA 2024" railed seat
- SEAT POST: PROMAX "SP-2019" seat post, alloy, multi-adjust, 300mm x 27.2mm
- SEAT CLAMP: RADIO "SLIM" seat clamp, alloy
- TIRES: VEE TIRE "CROWN GEM" tires, 2.25" front & rear
Radio Bikes Zuma 20" Complete Bike
£576.99
Radio Bikes Zuma 20" Complete Bike
Buying a bike for your child can be daunting, that’s why we developed the Radio Bikes Zuma range to make it that much easier. Based on 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.
With a full range of sizes from 14” for the first-time rider, all the way through to a 26” wheeled machine for the aspiring rookie, there is a Zuma for every rider. These carefully spec’d bikes feature a super lightweight alloy frame and fork with double wall rims and children-specific aftermarket components from Promax, KMC, FSA, Vee rubber and Satori, making them suit the rider’s size perfectly but look, feel and ride just like a high-end full adult size mtb.
Children are the future, and the Radio Bikes Zuma line is designed to give them the best possible start in for that future…
Weight: 10.03kg / 22.12lbs
Frame Geometry:
| Top Tube Length | 17.6" |
| Chain Stay Length | 14.8" |
| Head Tube Angle | 69° |
| Seat Tube Angle | 73° |
| Bottom Bracket Height | 10mm |
| Standover Height | 21.3" |
Handlebar Geometry:
| Rise | 1" |
| Width | 22.8" |
| Backsweep | 8° |
| Upsweep | 4° |
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