Trek JACK 1 2007 VS Specialized ROCKHOPPER A1 COMP FS 2000 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 Comp FS

General Infos

Model	Rockhopper A1 Comp FS
Manufacturer	Specialized
Year of production	2000
Current price	Check price Here ==>
Color choice	- Silver and Blue -Black and Orange
Sizes	- 13 (inches) - 15 (inches) - 17 (inches) - 19 (inches) - 21 (inches) - 23 (inches)

Wheels And Breaking System

Bike front tire	Rear: 26 X 1.90 (inches) Specialized Team Master Front: 26 X 2.00 (inches) Specialized Team Control
Bike rear tire	Not Available
Bike wheel size	26 (inches) Wheels
Brakeset type	Tektro Quartz Levers Tektro Quartz Brakes
Hubs for disc brakes	Rear: Specialized Megaphone Comp Front: Specialized Alloy
Rims manufacturer	32-hole Rear: Ritchy Rock Comp OCR Front: Ritchy Rock Comp
Spoke nipples type	Brass Nipples
Spoke wheel	1.8 (millimeters) Straight Gauge Specialized Stainless Steel

Frame and Body Specs

Frame materials	Specialized A1 Aluminum
Frame type	TIG-welded
Handlebar construction	Specialized Alloy
Handlebar extender	Optional
Handlebar stem details	Specialized Alloy
Headset size	1 1/8 (inches) Threadless Tange Seiki Alloy

Gearing Specifications

Bicycle chain	1/2 X 3/32 (inches) Shimano
Bottom bracket shell width	Not Available
Bottom bracket type	Shimano BB-UN40
Crankset parts and sizes	22/32/44 Teeth Specialized Forearm Comp
Gear shift levers	Shimano Deore Rapidfire Plus
Rear gear set	11 - 32 Teeth 9-speed

Specialized Rockhopper A1 Comp FS Fork System Data

Derailleur (Front)	Bottom-pull and clamp-on 35.0 (millimeters) Shimano Deore
Derailleur (Rear)	Shimano Deore LX SGS
Fork material	Triple-clamp Crown Aluminum and magnesium
Fork type	3.0 (inches) Travel Answer Manitou Magnum R

Other Specs of Specialized Rockhopper A1 Comp FS

Component group sets	Mountain Mix
Pedals details	Specialized Single Sided Clipless
Rear shock absorber	Not Available
Saddle seat	Specialized Rockhopper
Seat post extension	30.9 (millimeters) Diameter Specialized Alloy