Bicycle Archive · Specification report

2011 GT Tachyon 4.0

Velopedia Archive ID 25076

Overview

Model year	2011
Brand	GT
Model	Tachyon 4.0
Bicycle type	Road race & triathlon
Archive ID	25076
Colors	White
Sizes	XS, S, M, L, XL

Frameset

Frame construction	Aluminum
Frame material	Aluminum
Fork	GT Type R Alloy
Fork material	Alloy
Rear shock	N/A

Drivetrain

Component group	Road Mix
Shifters	Shimano EF-51
Front derailleur	Shimano M191
Rear derailleur	Shimano Acera
Crankset	Shimano FC-M311, 48/38/28t teeth
Bottom bracket	Cartridge Sealed
Cassette	Shimano HG50
Rear cogs	8-speed, 11 - 32 teeth
Chain	KMC HG39
Pedals	Alloy body / steel cage

Brakes

Brakes	Tektro RX-1 brakes, Shimano EF-51 levers

Cockpit & contact points

Headset	Integrated Sealed
Handlebar	GT flat bar
Handlebar extensions	Not included
Stem	GT alloy
Saddle	GT sport
Seatpost	GT Design Alloy

Wheels & tires

Hubs	Formula alloy
Rims	Jalco DRX3000, 32-hole
Spokes	Stainless, 14ga. (2.0mm)
Spoke nipples	Brass
Front tire	700 x 32c Kenda Kwest
Wheel size	700c wheels

Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on November 10, 2026.