Bicycle Archive · Specification report

2007 GT Bump

Velopedia Archive ID 16100

Overview

Model year	2007
Brand	GT
Model	Bump
Bicycle type	Freestyle/jumping
Archive ID	16100
Original MSRP	$269.99
Colors	Matte Navy Blue, Matte Brick
Sizes	20" wheel

Frameset

Frame construction	TIG-welded
Frame material	Chromoly
Fork	'05 GT dirt jump
Fork material	Chromoly, unicrown crown
Rear shock	N/A

Drivetrain

Component group	BMX Mix
Shifters	N/A
Front derailleur	N/A
Rear derailleur	N/A
Crankset	GT Tubular Cr-Mo 3pc.
Bottom bracket	Ball type with 8 spline Cr-Mo axle
Rear cogs	1-speed, 12 teeth
Chain	KMC Z410
Pedals	'05 GT Dirt/Street platform design, aluminum body, cr-mo alxe

Brakes

Brakes	Tektro, FX-330 rear brakes, Tektro 274A levers

Cockpit & contact points

Headset	1 1/8" threadless Tange Seiki FATTY 22
Handlebar	GT dirt/street Cr-mo
Handlebar extensions	Not included
Stem	GT FS design
Saddle	Velo mini street
Seatpost	Alloy Micro adjust

Wheels & tires

Hubs	Front: GT aluminum sealed, Rear: GT sealed cassette
Rims	Alex G22, 36-hole
Spokes	14ga. (2.0mm) straight gauge
Spoke nipples	Brass nipples
Front tire	Front: 26 x 2.125" Front: Kenda K-Rad, Rear: 26 x 2.10" Kenda Konxsion
Wheel size	26" wheels

Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on September 24, 2026.