Specialized ROCKHOPPER A1 FS 1999 VS GT CHUCKER 20 2007 specs comparison

Specialized Rockhopper A1 FS

General Infos

Model	Rockhopper A1 FS
Manufacturer	Specialized
Year of production	1999
Current price	Check price Here ==>
Color choice	- Burnt Orange -Black
Sizes	- 13 (inches) - 15 (inches) - 17 (inches) - 19 (inches) - 21 (inches) - 23 (inches)
Sizes	- 13 (inches) - 15 (inches) - 17 (inches) - 19 (inches) - 21 (inches) - 23 (inches)

Wheels And Breaking System

Bike front tire	Rear: 26 X 1.95 (inches) Specialized Dirt Master Sport Front: 26 X 1.95 (inches) Specialized Dirt Control Sport
Bike rear tire	Not Available
Bike wheel size	26 (inches) Wheels
Brakeset type	Dia-Compe DP-7N Levers Dia-Compe 733 Direct Pull With Linear Spring Brakes
Hubs for disc brakes	Rear: Specialized STOUT Comp Front: Specialized Alloy
Rims manufacturer	32-hole Rear: Ritchey Rock OCR Front: Ritchey Rock SCX
Spoke nipples type	Brass Nipples
Spoke wheel	1.8 (millimeters) Straight Gauge DT Stainless Steel

Frame and Body Specs

Frame materials	Specialized A1 Aluminum
Frame type	TIG-welded
Handlebar construction	Specialized Alloy
Handlebar extender	Not Available
Handlebar stem details	Specialized A-1
Headset size	1 1/8 (inches) Threadless Specialized Headfirst Sport

Gearing Specifications

Bicycle chain	1/2 X 3/32 (inches) Shimano CN-HG72
Bottom bracket shell width	73 (millimeters) English
Bottom bracket type	110 (millimeters) Spindle Specialized Comp
Crankset parts and sizes	22/32/42 Teeth Specialized ForeArm Sport
Gear shift levers	Shimano Deore LX RapidFire SL
Rear gear set	11 - 32 Teeth 9-speed

Specialized Rockhopper A1 FS Fork System Data

Derailleur (Front)	Bottom-pull and clamp-on 35.0 (millimeters) Shimano STX-RC Top-swing
Derailleur (Rear)	Shimano Deore LX SGS
Fork material	Triple-clamp Crown Aluminum and magnesium
Fork type	2.75 (inches) Travel Answer Manitou Spyder

Other Specs of Specialized Rockhopper A1 FS

Component group sets	Mountain Mix
Pedals details	Aluminum Cage With Clips & Straps
Rear shock absorber	Not Available
Saddle seat	Specialized Prolong
Seat post extension	30.9 (millimeters) Diameter Specialized Micro-adjust

GT Chucker 20

General Infos

Model	Chucker 20
Manufacturer	GT
Year of production	2007
Current price	Check price Here ==>
Color choice	-Sand Blast Blue
Sizes	- 20 Wheels (inches)

Wheels And Breaking System

Bike front tire	20 X 2.35 (inches) Kenda Kinetics
Bike rear tire	Not Available
Bike wheel size	20 (inches) Wheels
Brakeset type	Tektro Alloy Jr. ATB Levers Tektro Alloy V-Type Brakes
Hubs for disc brakes	Alloy QR
Rims manufacturer	Jalco ST-32
Spoke nipples type	CP Brass
Spoke wheel	14ga.

Frame and Body Specs

Frame materials	GT Chucker Design 7005 Aluminum
Frame type	TIG-welded
Handlebar construction	Alloy Rise
Handlebar extender	Optional
Handlebar stem details	Alloy
Headset size	Standard Press-In Ball Type

Gearing Specifications

Bicycle chain	KMC Z51
Bottom bracket shell width	Not Available
Bottom bracket type	Cartridge
Crankset parts and sizes	36 Teeth ProWheel
Gear shift levers	SRAM MXR Twistgrip
Rear gear set	14 - 28 Teeth 7-speed

GT Chucker 20 Fork System Data

Derailleur (Front)	Not Available
Derailleur (Rear)	Shimano Tourney 30
Fork material	Single Crown Aluminum and steel
Fork type	40 (millimeters) Travel SR Suntour XCU

Other Specs of GT Chucker 20

Component group sets	Mountain Mix
Pedals details	GT Jr. BMX Platform
Rear shock absorber	Not Available
Saddle seat	9 (millimeters) Rails GT Jr. Jump Design
Seat post extension	Alloy