2018 Diamondback

Cobra 20

A 20″ steel frame general youth bike with mid-range components and rim brakes.
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MSRP$179
FrameSteel
SuspensionHardtail, 40mm
Wheels20″ Aluminum
Drivetrain1 × 7
GroupsetTourney, Altus
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

18 mph

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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 Tourney TY300, 7 Speed

Crank

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

Shifters

Shimano M310, 7 Speed Trigger Shifter

Cassette

Shimano TZ21, 7 Speed Freewheel, 14-28T

Chain

KMC Z51, 7 Speed

Brakes

Alloy Linear Pull

TypeRim

Brake Levers

Alloy Linear Pull w/ Reach Adjust

Wheels
Rims

36h Alloy

Spokes

14g Steel

Front Hub

36h Steel Nutted

Rear Hub

36h Steel Nutted, Freewheel

Tires

Jr ATB Knobby, 20x2.0"

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Last updated March 7
Not listed for 2,208 days