VelopediaBicycle Archive ยท Specification report

2005 Diamondback Octane 20

Velopedia Archive ID 10699

Overview

Model year2005
BrandDiamondback
ModelOctane 20
Bicycle typeJuvenile mountain bike, suspension
Archive ID10699
ColorsBlue Schmue/Black, Burple/Purple

Frameset

Frame constructionTIG-welded
Frame materialAluminum
ForkSR Suntour SR M2000
Fork materialAluminum, single crown
Rear shockN/A

Drivetrain

Component groupJuvenile Mix
ShiftersShimano Revo RS-31
Front derailleurN/A
Rear derailleurShimano Tourney TX-30
CranksetOne-piece
Bottom bracketLoose ball
Rear cogs6-speed, 14 - 28 teeth
ChainKMC Z-51
PedalsResin

Brakes

BrakesProMax linear-pull front/Promax linear rear brakes, linear levers

Cockpit & contact points

Headset1 1/8" threadless
HandlebarRiser
Handlebar extensionsNot included
StemAluminum adjustable
SaddleDiamondback Jr. ATB
SeatpostSteel

Wheels & tires

HubsSteel nutted
RimsAluminum, 36-hole
SpokesStainless steel, 14ga. straight gauge
Front tire20" x 1.95" Jr. ATB
Wheel size20" wheels

Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on August 25, 2026.