Trek JACK 1 2007 VS Specialized ROCKHOPPER A1 FS COMP 1999 specs comparison

Trek Jack 1

General Infos

Model	Jack 1
Manufacturer	Trek
Year of production	2007
Current price	Check price Here ==>
Color choice	-Gloss Navy
Sizes	- 13 (inches) - 15 (inches) - 17 (inches)
Sizes	- 13 (inches) - 15 (inches) - 17 (inches)

Wheels And Breaking System

Bike front tire	26 X 2.40 (inches) Bontrager Earl
Bike rear tire	Not Available
Bike wheel size	26 (inches) Wheels
Brakeset type	Shimano EF-50 Levers Tektro V Brakes
Hubs for disc brakes	Shimano M-475 Disc
Rims manufacturer	Bontrager Camino
Spoke nipples type	Not Available
Spoke wheel	Not Available

Frame and Body Specs

Frame materials	Alpha Aluminum
Frame type	TIG-welded
Handlebar construction	Bontrager Earl
Handlebar extender	Optional
Handlebar stem details	Bontrager Earl
Headset size	Semi-cartridge Aheadset

Gearing Specifications

Bicycle chain	Not Available
Bottom bracket shell width	Not Available
Bottom bracket type	Not Available
Crankset parts and sizes	22/32/44 Teeth Shimano M-341
Gear shift levers	Shimano EF-50
Rear gear set	11 - 32 Teeth 8-speed

Trek Jack 1 Fork System Data

Derailleur (Front)	Shimano C-050
Derailleur (Rear)	Shimano Acera
Fork material	Single Crown Aluminum and steel
Fork type	100 (millimeters) Travel RST Gila T7

Other Specs of Trek Jack 1

Component group sets	Shimano Mix
Pedals details	Alloy Platform
Rear shock absorber	Not Available
Saddle seat	Bontrager Earl Jump
Seat post extension	Bontrager Sport

Specialized Rockhopper A1 FS Comp

General Infos

Model	Rockhopper A1 FS Comp
Manufacturer	Specialized
Year of production	1999
Current price	Check price Here ==>
Color choice	- Pearl White -Grabber Green
Sizes	- 13 (inches) - 15 (inches) - 17 (inches) - 18 (inches) - 19 (inches) - 21 (inches) - 23 (inches)

Wheels And Breaking System

Bike front tire	26 X 1.95 (inches) Specialized Dirt Control Comp
Bike rear tire	Not Available
Bike wheel size	26 (inches) Wheels
Brakeset type	Avid SD-1.0 L Levers Dia-Compe 735 Direct Pull Brakes
Hubs for disc brakes	Rear: Specialized STOUT Comp Front: Specialized Alloy
Rims manufacturer	32-hole Rear: Ritchey Rock OCR Front: Ritchey Rock Comp
Spoke nipples type	Brass Nipples
Spoke wheel	1.8 (millimeters) Straight Gauge Chung Nan 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	22/32/44 Teeth Specialized ForeArm Comp
Gear shift levers	Shimano Deore LX RapidFire SL
Rear gear set	11 - 32 Teeth 9-speed

Specialized Rockhopper A1 FS Comp Fork System Data

Derailleur (Front)	Clamp-on 35.0 (millimeters) Shimano Deore LX Top-swing
Derailleur (Rear)	Shimano Deore XT SGS
Fork material	Triple-clamp Crown Aluminum and magnesium
Fork type	3.15 (inches) Travel Answer Manitou Spyder R

Other Specs of Specialized Rockhopper A1 FS Comp

Component group sets	Mountain Mix
Pedals details	Specialized Comp Clipless
Rear shock absorber	Not Available
Saddle seat	Specialized Prolong
Seat post extension	30.9 (millimeters) Diameter Specialized Micro-adjust