Trek JACK 3 2007 VS Specialized ROCKHOPPER PRO DISC 2006 specs comparison

Trek Jack 3

General Infos

Model	Jack 3
Manufacturer	Trek
Year of production	2007
Current price	Check price Here ==>
Color choice	-Gloss White
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	Avid Juicy 5 Levers Avid Juicy 5 With 8 (inches) Rotor Front and Avid Juicy 5 Hydraulic Disc With 6 (inches) Rotor Rear Brakes
Hubs for disc brakes	Shimano M-475 Disc
Rims manufacturer	Sun Rhyno Lite
Spoke nipples type	Not Available
Spoke wheel	Not Available

Frame and Body Specs

Frame materials	Alpha Aluminum
Frame type	TIG-welded
Handlebar construction	Bontrager Big 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	24/36 Teeth Bontrager King Earl
Gear shift levers	Shimano Deore
Rear gear set	11 - 34 Teeth 9-speed

Trek Jack 3 Fork System Data

Derailleur (Front)	Shimano Deore
Derailleur (Rear)	Shimano Deore LX
Fork material	Single Crown Aluminum and magnesium
Fork type	80 (millimeters) Travel Manitou Stance Static

Other Specs of Trek Jack 3

Component group sets	Shimano Deore
Pedals details	Bontrager Big Earl Platform
Rear shock absorber	Not Available
Saddle seat	Bontrager Big Earl
Seat post extension	Bontrager King Earl

Specialized Rockhopper Pro Disc

General Infos

Model	Rockhopper Pro Disc
Manufacturer	Specialized
Year of production	2006
Current price	Check price Here ==>
Color choice	-Not found
Sizes	- 13 (inches) - 15 (inches) - 17 (inches) - 19 (inches) - 21 (inches)

Wheels And Breaking System

Bike front tire	60TPI Aramid Bead Dual Compound 26 X 2.00 (inches) Specialized Adrenaline Sport
Bike rear tire	Not Available
Bike wheel size	26 (inches) Wheels
Brakeset type	Avid FR-5 Levers Mechanical Disc With 6 (inches) Roundagon Rotor Brakes Avid BB-5
Hubs for disc brakes	Rear: Shimano 475 Disc Machined Disc Mount Hi-low Flange Front: Specialized Disc
Rims manufacturer	32-hole SUN DS2 Disc
Spoke nipples type	Brass Nipples
Spoke wheel	15ga. Straight Gauge Stainless Steel

Frame and Body Specs

Frame materials	A1 Premium Aluminum
Frame type	TIG-welded
Handlebar construction	25 (millimeters) XC Rise 6 Degree Upsweep 620 (millimeters) 8 Degree Sweep Double Butted Alloy
Handlebar extender	Optional
Handlebar stem details	TIG Welded Alloy 7 Degree Rise
Headset size	Sealed Ball Retainer 1 1/8 (inches) Threadless

Gearing Specifications

Bicycle chain	SRAM PC-951 With Power Link
Bottom bracket shell width	Not Available
Bottom bracket type	TruVativ GXP
Crankset parts and sizes	22/32 Heat Treated Cro-Mo and 44 7075 Aluminum Teeth External BB With Alloy Outer Ring Truvativ Fire-X GXB
Gear shift levers	9-speed Shimano SL Deore
Rear gear set	11 - 34 Teeth 9-speed

Specialized Rockhopper Pro Disc Fork System Data

Derailleur (Front)	34.9 (millimeters) Clamp Bottom Pull Top Swing Shimano Deore
Derailleur (Rear)	Long Cage Standard Spring Shimano Deore XT
Fork material	Single Crown Magnesium and aluminum and steel
Fork type	100 (millimeters) RockShox Recon 351SL

Other Specs of Specialized Rockhopper Pro Disc

Component group sets	Mountain Mix
Pedals details	Alloy 1 Piece Body And Cage
Rear shock absorber	Not Available
Saddle seat	Semi Light Foam Specialized Body Geometry Sport MTB
Seat post extension	Alloy Micro-adjust