2017 Diamondback

Cobra 20

A 20″ steel frame mountain youth bike with mid-range components and rim brakes.
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FrameSteel
SuspensionHardtail, 40mm
ForkZoom
Wheels20″ Aluminum
Drivetrain1 × 6
GroupsetTourney, Shimano
BrakesRim
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Insights
Gearing

A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

Lowest gear

(climbing)

17 mph

Cobra 20

Highest gear

(descending)

Geometry
99 Spokes on YouTube99 Spokes on YouTube
Specs
Build
Frame

DB Hi-Ten Jr Boy's 20" Mountain Frame

Fork

HL Zoom 20" Suspension, 40mm Travel

Travel40mm

Bottom Bracket

Square Taper - 5pc

Headset

Threaded 1"

Stem

Steel Quill

Handlebar

Steel Jr Riser

Saddle

JR ATB 2-panel

Seatpost

Steel Pillar, 25.4mm

TypeRigid

Pedals

Resin MTB, 1/2"

Grips

DB Kraton

Groupset
Rear Derailleur

Shimano TZ-20, 6 Speed

Crank

140mm One-piece Steel, 40 Tooth w/ Double Guard

Shifters

Shimano RS25 Revo Grip Shift, 6 Speed

Cassette

Shimano TZ20, 6 Speed Freewheel, 14-28T

Chain

KMC Z51, 6 Speed

Brakes

Alloy Linear Pull

TypeRim

Brake Levers

Alloy Linear Pull w/ Reach Adjust

Wheels
Rims

36h 20" R-1000 Alloy

Spokes

14g Steel

Front Hub

36h Steel Nutted

Rear Hub

36h Steel Nutted, Freewheel

Tires

Jr ATB Knobby, 20x2.0"

Rider Notes
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Last updated January 17
Not listed for 2,664 days