GT SPEED SERIES JR. 1999 VS GT EL CENTRO 2011 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 El Centro

General Infos

Model	El Centro
Manufacturer	GT
Year of production	2011
Current price	Check price Here ==>
Color choice	- clay -Nickel
Sizes	- Not available

Wheels And Breaking System

Bike front tire	20 X 2.1 (inches) Kenda Ko-Rolla
Bike rear tire	Not Available
Bike wheel size	20 (inches) Wheels
Brakeset type	Unavailable Front and Xposure Rear Levers Unavailable Front and Xposure Rear Brakes
Hubs for disc brakes	Rear: GT Alloy Front: GT Aluminum
Rims manufacturer	36-hole Alienation PBR
Spoke nipples type	Brass
Spoke wheel	14ga.

Frame and Body Specs

Frame materials	CroMo
Frame type	Steel
Handlebar construction	GT Pro Steel
Handlebar extender	Optional
Handlebar stem details	Xposure
Headset size	1 1/8 (inches) Integrated

Gearing Specifications

Bicycle chain	KMC Z510H
Bottom bracket shell width	Not Available
Bottom bracket type	Mid Size Sealed Bearings
Crankset parts and sizes	8t Teeth GT Heat Treated Cr-Mo
Gear shift levers	Not Available
Rear gear set	9 teeth c

GT El Centro Fork System Data

Derailleur (Front)	Not Available
Derailleur (Rear)	Not Available
Fork material	Steel
Fork type	GT Dirt and Street

Other Specs of GT El Centro

Component group sets	BMX Mix
Pedals details	GT Dirt and Street Platform
Rear shock absorber	Not Available
Saddle seat	Pivotal Street Design
Seat post extension	Pivotal Alloy