GT SPEED SERIES JR. 1999 VS GT MACH ONE EXPERT 2006 specs comparison

GT Speed Series JR.

General Infos

Model	Speed Series JR.
Manufacturer	GT
Year of production	1999
Current price	Check price Here ==>
Color choice	-Ball-Burnished
Sizes	- Mini
Sizes	- Mini

Wheels And Breaking System

Bike front tire	20 X 1 1/8 (inches) GT AA Pro
Bike rear tire	Not Available
Bike wheel size	20 (inches) Wheels
Brakeset type	Tektro Alloy Linear-pull Rear Levers Tektro Linear-pull Rear Brakes
Hubs for disc brakes	GT Mohawk
Rims manufacturer	28-hole Weinmann Mini Zac
Spoke nipples type	Brass Nipples
Spoke wheel	1.8 (millimeters) Straight Gauge Wheelsmith Stainless Steel

Frame and Body Specs

Frame materials	6061 T6 Aluminum
Frame type	Welded
Handlebar construction	GT Jr Aluminum
Handlebar extender	Not Available
Handlebar stem details	GT Mini Piston
Headset size	1 (inches) Threadless Aheadset AL

Gearing Specifications

Bicycle chain	1/2 X 1/8 (inches)
Bottom bracket shell width	Not Available
Bottom bracket type	Cartridge
Crankset parts and sizes	42 Teeth GT 3-piece Aluminum
Gear shift levers	Not Available
Rear gear set	16 Teeth 1-speed

GT Speed Series JR. Fork System Data

Derailleur (Front)	Not Available
Derailleur (Rear)	Not Available
Fork material	Unicrown Crown Reynolds 531
Fork type	GT

Other Specs of GT Speed Series JR.

Component group sets	Not Available
Pedals details	Victor VP-104 Clipless
Rear shock absorber	Not Available
Saddle seat	Uni Mini
Seat post extension	Aluminum

GT Mach One Expert

General Infos

Model	Mach One Expert
Manufacturer	GT
Year of production	2006
Current price	Check price Here ==>
Color choice	- Gloss Black -Absolute Blue
Sizes	- 20 wheel (inches)

Wheels And Breaking System

Bike front tire	20 X 1.75 (inches) GT Brody Knob
Bike rear tire	Not Available
Bike wheel size	20 (inches) Wheels
Brakeset type	317A Alloy Rear Levers Tektro Tektro Alloy V-type Rear Brakes
Hubs for disc brakes	Rear: Shimano Coaster Brake Front: Steel
Rims manufacturer	36 Hole 36-hole Alloy
Spoke nipples type	Brass Nipples
Spoke wheel	14ga. Straight Gauge

Frame and Body Specs

Frame materials	Hi-Ten Steel GT BMX Dirt Jump Styling
Frame type	TIG-welded
Handlebar construction	6- 3/4 (inches) Rise Hi-Ten GT BMX Design
Handlebar extender	Not Available
Handlebar stem details	Aluminum Extension With 1 (inches) Steel Quill
Headset size	1 (inches) Steel

Gearing Specifications

Bicycle chain	KMC Z410
Bottom bracket shell width	Not Available
Bottom bracket type	Ball Type Steel
Crankset parts and sizes	36 Teeth Forged One-piece Typ
Gear shift levers	Not Available
Rear gear set	1-speed

GT Mach One Expert Fork System Data

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

Other Specs of GT Mach One Expert

Component group sets	BMX
Pedals details	Resin Jr. BMX Design
Rear shock absorber	Not Available
Saddle seat	Padded With Stitched Cover And 7 (millimeters) Rails GT Jr. BMX Design
Seat post extension	22.2 (millimeters) Diameter Steel