GT MACH ONE JR. 2009 VS GT AIR 2008 specs comparison

GT Mach One Jr.

General Infos

Model	Mach One Jr.
Manufacturer	GT
Year of production	2009
Current price	Check price Here ==>
Color choice	-Black
Sizes	- Not available
Sizes	- Not available

Wheels And Breaking System

Bike front tire	16 X 2.125 (inches) GT Wing Design
Bike rear tire	Not Available
Bike wheel size	16 (inches) Wheels
Brakeset type	Coaster Brake Rear
Hubs for disc brakes	Rear: Coaster Brake Front: Steel
Rims manufacturer	28-hole Alloy
Spoke nipples type	Brass
Spoke wheel	14ga.

Frame and Body Specs

Frame materials	Not Available
Frame type	TIG-welded
Handlebar construction	GT BMX Hi-ten
Handlebar extender	Optional
Handlebar stem details	Steel
Headset size	1 (inches) Steel

Gearing Specifications

Bicycle chain	KMC Z410
Bottom bracket shell width	Not Available
Bottom bracket type	Steel
Crankset parts and sizes	32 Teeth Forged One-piece
Gear shift levers	Not Available
Rear gear set	16 Teeth 1-speed

GT Mach One Jr. Fork System Data

Derailleur (Front)	Not Available
Derailleur (Rear)	Not Available
Fork material	Unicrown
Fork type	GT BMX

Other Specs of GT Mach One Jr.

Component group sets	BMX
Pedals details	Jr Resin Platform
Rear shock absorber	Not Available
Saddle seat	GT Jr. BMX
Seat post extension	25.4 (millimeters) Diameter Steel

GT Air

General Infos

Model	Air
Manufacturer	GT
Year of production	2008
Current price	Check price Here ==>
Color choice	-Gray
Sizes	- Standard size for everyone

Wheels And Breaking System

Bike front tire	20 (inches) GT Air Bags
Bike rear tire	Not Available
Bike wheel size	20 (inches) Wheels
Brakeset type	Tektro 319AC Levers Tektro 907 U-brake Brakes
Hubs for disc brakes	Rear: Sealed Mech Freewheel Front: Sealed Mech
Rims manufacturer	Mag
Spoke nipples type	Not Available
Spoke wheel	Not Available

Frame and Body Specs

Frame materials	GT BMX FS Design
Frame type	TIG-welded
Handlebar construction	GT Dirt and street Cr-mo
Handlebar extender	Optional
Handlebar stem details	GT FS Design
Headset size	1 1/8 (inches) TH

Gearing Specifications

Bicycle chain	KMC Z410
Bottom bracket shell width	Not Available
Bottom bracket type	Ball Type Steel
Crankset parts and sizes	GT Forged 3pc.
Gear shift levers	Not Available
Rear gear set	16 Teeth 1-speed

GT Air Fork System Data

Derailleur (Front)	Not Available
Derailleur (Rear)	Not Available
Fork material	Unicrown Crown Chromoly
Fork type	GT BMX Design

Other Specs of GT Air

Component group sets	BMX
Pedals details	Resin GT Jump Design
Rear shock absorber	Not Available
Saddle seat	GT Freestyle
Seat post extension	Steel