Bicycle Archive · Specification report

2012 GT Tachyon 4.0

Velopedia Archive ID 2023562

Overview

Model year	2012
Brand	GT
Model	Tachyon 4.0
Bicycle type	Hybrid/Comfort
Archive ID	2023562
Colors	Satin Black, Silver
Sizes	L, M, S, XL

Frameset

Frame material	Hydroformed Butted 6061 Al
Fork	GT Type R w/ 6061

Drivetrain

Shifters	Shimano EF-51 8spd
Front derailleur	Shimano M191
Rear derailleur	Shimano Acera 8spd
Crankset	Shimano M311 48/38/28t
Bottom bracket	FSA Sealed
Cassette	Shimano HG-51 8spd 11-32t
Chain	KMC HG-40
Pedals	GT Trekking

Brakes

Brakes	Tektro RX 1.0

Cockpit & contact points

Headset	Fsa
Handlebar	GT Type R Flat-Riser
Stem	GT 3D Forged 6061
Saddle	GTw Bio-Morphic
Seatpost	GT 2 bolt Alloy Road

Wheels & tires

Hubs	Formula Sealed Formula Sealed
Front tire	Kenda Kwest 700x32

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