2018 Diamondback Cobra 20

2018 Diamondback Cobra 20
MSRPUS$ 180
Wheel Size20″
FrameSteel
SuspensionHardtail
Front Travel40mm
Gearing1 × 7
Drivetrain
Shimano Tourney
Brand
Diamondback

Diamondback’s 2018 Cobra 20 is a modest component level steel frame youth bike.

Build
FrameDB Hi-Ten Jr Boy's 20" Mountain Frame
ForkHL Zoom 20" Suspension, 40mm Travel
Bottom BracketSquare Taper - 5pc
HeadsetThreaded 1"
StemSteel Quill
HandlebarSteel Jr Riser
SaddleJR ATB 2-panel
SeatpostSteel Pillar, 25.4mm
PedalsResin MTB, 1/2"
GripsDB Kraton
Components
Rear DerailleurShimano Tourney TY300, 7 Speed
ShiftersShimano M310, 7 Speed Trigger Shifter
Crank140mm One-piece Steel, 40 Tooth w/ Double Guard
CassetteShimano TZ21, 7 Speed Freewheel, 14-28T
ChainKMC Z51, 7 Speed
BrakesAlloy Linear Pull
Brake LeversAlloy Linear Pull w/ Reach Adjust
Wheels
Rims36h Alloy
Spokes14g Steel
Front Hub36h Steel Nutted
Rear Hub36h Steel Nutted, Freewheel
TiresJr ATB Knobby, 20x2.0"
Gearing
1 × 77 speed
2018 Diamondback Cobra 20
17 mph
Category Average Virtual Bike
18 mph

Similar bikes are easier to ride up hills than the 2018 Cobra 20.

The 2018 Cobra 20 is geared about the same as similar bikes for riding downhill.

Geometry

Roll over table below to highlight frame dimensions.

Size
44"
BB Drop 13
Chainstay Length 381
Seat Tube Angle74.0
Seat Tube Length 279
Stack 😞
Reach 😞
Head Tube Angle70.0
Head Tube Length 102
Wheelbase 889
Top Tube Length 406
Standover Height 495
Front Center 508
🐐 Measurements listed in millimeters and degrees
Replacement Parts
MSRPUS$ 180
Wheel Size20″
FrameSteel
SuspensionHardtail
Front Travel40mm
Gearing1 × 7
Drivetrain
Shimano Tourney
Brand
Diamondback
Gearing
1 × 77 speed
2018 Diamondback Cobra 20
17 mph
Category Average Virtual Bike
18 mph

Similar bikes are easier to ride up hills than the 2018 Cobra 20.

The 2018 Cobra 20 is geared about the same as similar bikes for riding downhill.

Replacement Parts
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