Buying a bike for your child can be daunting—that's why we developed the Zuma range to make it easier. Based on the concept of a kid-sized MTB bike, the Zuma bikes are incredibly lightweight. They feature a carefully researched geometry and are 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 and weekend rides with the parents.
These carefully spec'd bikes feature a super lightweight alloy frame and fork with double-wall rims and children's-specific aftermarket components from Promax, KMC, FSA, Vee Rubber, and Satori, making them suit the rider's size perfectly while keeping the look, feel, and ride of a high-end, full adult size MTB. Children are the future, and the Zuma line is designed to give them the best possible start for that future.
|Frame||Radio Zuma 20 frame, 6061-T6 alloy|
|Fork||Radio Zuma 20 straight rigid fork, 6061-T6 alloy|
Front: Radio disc hub, alloy shell, loose ball, QR crmo axle, 20h
Rear: Radio Zuma disc cassette hub, alloy, sealed, QR, 20h
|Tires||Vee Tire Crown Gem, 2.25"|
|Bottom Bracket||Radio BB set, BSA, square taper, sealed bearing|
|Crankset||Radio Zuma 3pc crank, forged alloy, 145mm length|
|Chainrings||Radio sprocket, steel, 32t, narrow wide|
|Cassette/Freewheel||MICROSHIFT 12-28t, 7speed|
|Chain||KMC chain, Z1 narrow type, 1/2" x 3/32"|
|Brakes||Promax DSK-310 mechanical disc front & rear brake|
|Brake Levers||Promax BL-367 lever, alloy|
|Handlebars||Radio Zuma 20 bar, 6061-T6 alloy, 31.8mm bar bore, 1" rise|
|Tape/Grips||Radio Zuma grips, 110mm, flangeless|
|Stem||Radio Zuma 45 frontload stem, alloy, 45mm reach|
|Headset||FSA A-headset, loose ball|
|Seatpost||Promax SP-2019 seat post, alloy, multi-adjust, 300mm|
|Saddle||Radio Zuma 2024 railed seat|
|Pedals||Radio JUNIOR pedals, nylon|
* Subject to change without notice.