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2023 RADIO

ZUMA 16″

A 16″ aluminum frame mountain youth bike with promax mechanical disc brakes.
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Weight17.0 lbs  
FrameAluminum
SuspensionRigid
ForkAluminum
Wheels16″ Aluminum
BrakesPromax Mechanical Disc
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Insights
Ride Feel

Based on frame geometry and build specs.

Handling
nimblestable
ZUMA 16″
Other Mountain Youth bikes
Geometry
Specs
Build
Frame

RADIO “ZUMA 16” frame, 6061-T6 alloy

BB StandardBSA, Threaded

ColorsTurbo Green; Cyan Blue

Fork

RADIO “ZUMA 16” straight rigid fork, 6061-T6 alloy

Bottom Bracket

RADIO bb set, BSA, square taper, sealed bearing

Headset

FSA A-headset, loose ball

Stem

RADIO “ZUMA 30” frontload stem, alloy, 30mm reach

Handlebar

SATORI bar, 6061-T6 alloy, 19mm griptube, 25.4mm bar bore, 1″rise

Saddle

RADIO “ZUMA 1416” railed seat

Seatpost

PROMAX “SP-2019” seat post, alloy, multi-adjust, 250mm

TypeRigid

Pedals

RADIO “JUNIOR” pedals, nylon

Grips

RADIO “JUNIOR” grips, 100mm, with flange

Groupset
Crank

RADIO “JUNIOR” 3pc crank, forged alloy, 114mm length

Cassette

RADIO sprocket, steel, 28t

Chain

KMC chain, S1 type, 1/2″ x 1/8″

Brakes

PROMAX “DSK-310” – mechanical disc front & rear brake

TypePromax Mechanical Disc

Brake Levers

PROMAX “BL-367” lever, alloy

Wheels
Rims

Front: RADIO “J25SE” rim, alloy, double wall, Rear: RADIO “J25SE” rim, alloy, double wall

Front Hub

RADIO disc hub, alloy shell, loose ball, 3/8″s crmo axle, 20h

Rear Hub

RADIO disc hub, alloy shell, for freewheel, sealed,3/8″s crmo axle, 20h

Tires

VEE TIRE “CROWN GEM” tires, 2.25″ front & rear

Rider Notes
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First added December 6

Last updated July 13

Not listed for 685 days