Buying a bike for children can be daunting. That's why the ZUMA range was developed to make the decision easier. The ZUMA bikes are based on the concept of a kid-sized MTB bike. They are incredibly lightweight, have a carefully considered geometry and have been specifically designed for smaller riders. This creates the perfect balance between a bike for kids and an advanced MTB on which to learn the basics, on off-road rides or weekends with parents.
With a full range of sizes from 14" for beginner riders to 26" bikes for aspiring rookies there's a ZUMA for every rider. These carefully specified bikes feature a super-lightweight aluminum frame and fork, double-walled rims and kid-specific aftermarket components from PROMAX, KMC, FSA, Vee Rubber and Satori, so the bike fits the rider's size perfectly but looks, feels, and rides just like a high-end adult-sized MTB.
| Product Name: | Radio ZUMA 20" - Mountainbike - 2022 - black |
| Manufacturer: | Radio Bikes |
| Item Code: | RAD562264 |
| activity: | Cycling |
| gender: | kids |
| material: | Aluminium |
| usage bikesport: | MTB |
| hubs: | Front: Radio disc hub, alloy, loose ball, QR CrMo axle, 20h / Rear: “ZUMA” disc cassette hub, alloy, sealed, QR, 20h |
| rims: | Radio “J25SE” rim, alloy, double wall |
| chain: | KMC Z1 |
| cassette: | microSHIFT 11-28t |
| shifter: | microSHIFT |
| rear derailleur: | microSHIFT 7 speed |
| bottom bracket: | Radio BSA square taper, sealed bearing |
| chainring ratio: | 32 |
| crankset: | Radio “ZUMA” 3pc crank, forged alloy, 145mm length, sprocket steel, 32t, narrow wide |
| brakes: | PROMAX “DSK-310” mechanical disc brake front & rear |
| seat post model: | PROMAX “SP-2019” seat post, alloy, multi-adjust, 300mm, Radio “SLIM” seat clamp |
| saddle: | Radio “ZUMA 2024” railed seat |
| handle bar: | Radio “ZUMA 20” bar, 6061-T6 alloy, 31.8mm bar, 1” rise |
| stem: | Radio “ZUMA 45” frontload stem, alloy, 45mm reach |
| fork: | Radio “ZUMA 20” straight rigid fork, 6061-T6 alloy |
| headset: | FSA Aheadset, loose ball |
| frame: | Radio “ZUMA 20” frame, 6061-T6 alloy |
| Shifting System (Manufacturer): | microSHIFT |
| number of gears - front: | 1 |
| shifting system: | 7-speed |
| Shifting Actuation: | Mechanical |
| brake type: | Disc Brake |
| wheel size: | 20" (406mm) |
| grips: | Radio “ZUMA” grips, 110mm, flangeless |
| seatpost: | Seatpost rigid |
| frame type: | Hardtail |
| pedals: | Radio “JUNIOR” pedals, nylon |
| tires: | VEE TIRE “CROWN GEM” tires, 2.25″ front & rear |
| brake actuation: | Mechanical |
| Model year: | 2022 |
| Color: | Black |
| fork construction: | Rigid Fork |
| weight: | 9850g |
| cable routing: | external |
| Manufacturer page: | https://radiobikes.com/ |
