Bike details
Overview
Key information split into simple groups.
Bike summary
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Frame Aluminum -
Wheels 20" -
Suspension Rigid -
Brakes Mechanical Disc
Parts list
Components
Main components, grouped by system.
Bike components
Frame
Frame
RADIO “ZUMA 20” frame, 6061-T6 alloy
Suspension Fork
RADIO “ZUMA 20” straight rigid fork, 6061-T6 alloy
Drivetrain
Cassette
RADIO sprocket, steel, 32t, narrow wide
Crank
RADIO “ZUMA” 3pc crank, forged alloy, 145mm length
Bottom Bracket
RADIO bb set, BSA, square taper, sealed bearing
Chain
KMC chain, Z1 narrow type, 1/2? x 3/32?
Pedals
RADIO “JUNIOR” pedals, nylon
Wheels
Front Hub
RADIO disc hub, alloy shell, loose ball, QR crmo axle, 20h
Rear Hub
RADIO “ZUMA” disc cassette hub, alloy, sealed, QR, 20h
Rims
RADIO “J25SE” rim, alloy, double wall
Tires
VEE TIRE “CROWN GEM” tires, 2.25? front & rear
Brakes
Brakes
PROMAX “DSK-310” – mechanical disc front & rear brake
Brake Levers
PROMAX “BL-367” lever, alloy
Cockpit
Stem
RADIO “ZUMA 45” frontload stem, alloy, 45mm reach
Handlebar
RADIO “ZUMA 20” bar, 6061-T6 alloy, 31.8mm bar bore, 1?rise
Grips
RADIO “ZUMA” grips, 110mm, flangeless
Headset
FSA A-headset, loose ball
Seat
Saddle
RADIO “ZUMA 2024” railed seat
Seatpost
PROMAX “SP-2019” seat post, alloy, multi-adjust, 300mm
Fit data
Geometry
Numbers for sizing and ride feel.
Model Overview
ZUMA 20? is a Radio Zuma model. RADIO launched 7 bikes of this model so far. You can easily view all of the Radio Zuma bikes models from 2023, here.
Safety
When you go for a ride, don’t forget to put your helmet on. Moreover, ride with traffic, not against it. This will help you stay visible to drivers and also makes it easier for them to see you.
Mountain bikes average price
According to our calculations, the average cost of a Mountain bike that is reliable is 616$. However, even if your budget is less than the average, you might still be able to get a top-quality Mountain bike. As a general rule of thumb, you should always read reviews about the bike and its components before buying it to ensure you don’t pay too much.
Average weight for Mountain bikes
The average weight for Mountain bikes is 11.4 kg (25.13 lbs). Having an easier bike than average will give you a great advantage on climbs. However, a heavier bike will gain more speed on descends.
Weighing 9.85 kg (21.72 lbs), the ZUMA 20? model is much lighter than average. In short, the average Mountain bike weight is 15.74% higher than this one.
ZUMA 20? components
Fork material
The fork on this bike is made out of aluminum, which is a lighter material. However, it is not as tough, nor durable as steel is.
Wheels
When leaving the production line, the ZUMA 20? model has 20″ aluminum wheels. This wheel size is used on bike models like BMX, children, or folding bikes. In conclusion, they are great for flat ground or very easy trails.
Brakes
Stopping the bike when needed, it’s essential for your safety. This bike has Mechanical Disc brakes. These brakes are also very popular, and a lot cheaper than hydraulic disk brakes. However, with hydraulic disk brakes, you have the ultimate braking power!