Cobra 20

The Cobra 20 is the perfect bike for the next step in a boy’s riding progression. The heavy duty steel frame can take some scuffs and dings while the 40mm suspension fork makes the bumps a little softer. The 6 speed twist shifter is a great way to introduce a boy to shifting without causing too much confusion and the linear pull brakes are a great way get him used to braking with his hands instead of feet. When your little man is ready for his next bike try a Cobra 20.


  • Heavy Duty Steel Frame
  • 40mm travel suspension Fork
  • 36 Spoke 20" Aluminum Wheels
  • 6-Speed Freewheel
  • Linear Pull Front and Rear Brakes

Bike Specs

Sizes 20" Boys 
Frame Steel Jr 20" Mountain Frame
Fork Zoom Suspension, 40mm Travel
Rear Shock
Cranks 140mm One-piece, 40 Tooth w/ Double Guard
Bottom Bracket Looseball BB
F. Derailleur N/A
R. Derailleur Shimano 6-spd, Direct Mount
Shifter Sun Race 6-spd Twist Shifter
Brake Levers Alloy Linear Pull
Brakes Alloy Linear Pull
Cassette Shimano 6-spd, 14-28t
Rims Alloy 36 Hole
Tires Jr ATB Knobby, 20x2.0 w/ Smooth Center Ridge
Pedals Avenir Youth Resin1/2"
Handlebar Steel Jr Riser
Stem Steel Quill
Seatpost Steel Pillar 28.6mm
Seat JR ATB 2-panel
Headset Threaded 1"
Colors Green
Chain KMC
Hubset (F) 36 Hole, Nutted (R) 36 Hole, Nutted, 6-spd Freewheel
Spokes 14g
Grips Soft PVC
Note Specifications Subject to Change


Size 20" Boys
Seat Tube Length ** 255.0mm
Standover Height mm
Top Tube Length * 408.0mm
Head Tube Length 100.0mm
Head Angle 70.0°
Seat Angle 74.0°
Wheel Base 894.0mm
Chain Stay Length 376.0mm
Fork Offset mm
BB Height 12.7mm
BB Drop 12.7mm
Stem Length mm
Handlebar Width 580.0mm
Crank Length 140.0mm
Seat Post Length mm
* Measured Horizontally ** Measured from Center