Zuma 26 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…

  • FRAME: RADIO "ZUMA 26" frame, 6061-T6 alloy
  • FORK: RADIO "ZUMA 26" straight rigid fork, 6061-T6 alloy 
  • HANDLEBAR: RADIO "ZUMA 26" bar, 6061-T6 alloy, 31.8mm bar bore, 1" rise
  • GRIPS: RADIO "ZUMA" grips, 130mm, flangeless
  • STEM: RADIO "ZUMA 45" frontload stem, alloy, 45mm reach 
  • HEADSET: FSA A-headset, loose ball
  • BRAKE LEVER: PROMAX "BL-42" lever, alloy 
  • BRAKE: TEKTRO "MD280", mechanical disc front & rear brake, 160mm rotor front & 140mm rear
  • CRANK: RADIO "ZUMA" 3pc crank, forged alloy, 165mm length
  • BB: RADIO bb set, BSA, square taper, sealed bearing
  • PEDALS: RADIO "ZUMA" pedals, nylon, crmo axle
  • CHAIN: KMC chain, Z1 narrow type, 1/2" x 3/32"
  • SPROCKET: RADIO sprocket, steel, 32t, narrow wide
  • DRIVER: MICROSHIFT, CS-H093, 11-42t, 9speed
  • SHIFTER: MICROSHIFT, Advent , SL-M819R, 9speed
  • DERAILLEUR: MICROSHIFT, RD-M6195M, Clutch, 9speed
  • FRONT HUB: RADIO disc hub, alloy, loose ball, QR crmo axle, 28h
  • REAR HUB: RADIO "ZUMA" disc cassette hub, alloy, sealed, QR, 28h
  • FRONT RIM: RADIO “J25SE” rim, alloy, double wall, 28h
  • REAR RIM: RADIO “J25SE” rim, alloy, double wall, 28h
  • SEAT: RADIO "ZUMA 26" railed seat
  • SEAT POST: PROMAX "SP-2019" seat post, alloy, multi-adjust, 300mm x 31.6mm
  • SEAT CLAMPRADIO "SLIM" seat clamp, alloy 
  • TIRES: VEE TIRE "CROWN GEM" tires, 2.25" front & rear

Weight: 12.66kg / 27.91lbs

 

Frame Geometry:

Top Tube Length 20.7"
Chain Stay Length 16.9"
Head Tube Angle 68°
Seat Tube Angle 74°
Bottom Bracket Height  40mm
Standover Height 28.7"

 

Handlebar Geometry:

Rise 1"
Width 29.1"
Backsweep
Upsweep

 

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