Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
Radio
2021 Radio Zuma 16"
Previous used estimate
$181 - $186
Actual value depends on condition, size, and local demand.
Value Guide market data · 2021 Radio Zuma 16"
12-month projected trend
11%
Direction and magnitude, not judgment
vs. category average
5%
Drops faster than category avg
Price over time - 2021 Radio Zuma 16"
Values based on actual sales data. Enter your bike's specifics to get a precise valuation.
All Zuma model years
Compare Zuma 16" models
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Overview
About this bike
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.
Specifications
- Subtype
- 16-inch
- Category
- Kids
- Component Fork
- Radio Zuma 16 straight rigid fork, 6061-T6 alloy
- Component Hubs
- Front: Radio disc hub, alloy shell, loose ball, 3/8" crmo axle, 20h Rear: Radio disc hub, alloy shell, for freewheel, sealed,3/8" crmo axle, 20h
- Component Size
- 16-inch
- Component Stem
- Radio Zuma 30 frontload stem, alloy, 30mm reach
- Product Family
- Zuma
- Component Chain
- KMC chain, S1 type, 1/2" x 1/8"
- Component Color
- Cyan Blue
- Component Frame
- Radio Zuma 16 frame, 6061-T6 alloy
- Component Brakes
- Promax DSK-310 mechanical disc front & rear brake
- Component Pedals
- Radio JUNIOR pedals, nylon
- Component Saddle
- Radio Zuma 1416 railed seat
- Component Headset
- FSA A-headset, loose ball
- Component Crankset
- Radio JUNIOR 3pc crank, forged alloy, 114mm length
- Component Seatpost
- Promax SP-2019 seat post, alloy, multi-adjust, 250mm
- Component Handlebar
- SATORI bar, 6061-T6 alloy, 19mm griptube, 25.4mm bar bore, 1" rise
- Component Rear Tire
- Vee Tire Crown Gem, 2.25"
- Component Chainrings
- Radio sprocket, steel, 28t
- Component Front Tire
- Vee Tire Crown Gem, 2.25"
- Component Tape Grips
- Radio JUNIOR grips, 100mm, with flange
- Component Brake Levers
- Promax BL-367 lever, alloy
- Component Bottom Bracket
- Radio BB set, BSA, square taper, sealed bearing
- Component Cassette Freewheel
- 16t freewheel, crmo
- Hubs
- Front: Radio disc hub, alloy shell, loose ball, 3/8" crmo axle, 20h Rear: Radio disc hub, alloy shell, for freewheel, sealed,3/8" crmo axle, 20h
- Crankset
- Radio JUNIOR 3pc crank, forged alloy, 114mm length
- Pedals
- Radio JUNIOR pedals, nylon
- Bottom Bracket
- Radio BB set, BSA, square taper, sealed bearing
- Chain
- KMC chain, S1 type, 1/2" x 1/8"
- Seatpost
- Promax SP-2019 seat post, alloy, multi-adjust, 250mm
- Saddle
- Radio Zuma 1416 railed seat
- Handlebar
- SATORI bar, 6061-T6 alloy, 19mm griptube, 25.4mm bar bore, 1" rise
- Headset
- FSA A-headset, loose ball
- Rear Tire
- Vee Tire Crown Gem, 2.25"
- Stem
- Radio Zuma 30 frontload stem, alloy, 30mm reach
- Brake Levers
- Promax BL-367 lever, alloy
- Brakes
- Promax DSK-310 mechanical disc front & rear brake
- Chainrings
- Radio sprocket, steel, 28t
- Fork
- Radio Zuma 16 straight rigid fork, 6061-T6 alloy
- Frame
- Radio Zuma 16 frame, 6061-T6 alloy
- Tape/Grips
- Radio JUNIOR grips, 100mm, with flange
- Color
- Cyan Blue
- Size
- 16-inch
- Cassette/Freewheel
- 16t freewheel, crmo
- Front Tire
- Vee Tire Crown Gem, 2.25"
What to check when buying used
Inspection
Drivetrain wear
Check chain stretch, cassette teeth, chainrings, and shifting under load before negotiating price.
Inspection
Service history
Ask for service records covering bearings, brakes, drivetrain, and any frame or fork warranty work.