Specialized ROCKHOPPER COMP 2004 VS Trek 3900 2006 specs comparison

Specialized Rockhopper Comp

General Infos

Model	Rockhopper Comp
Manufacturer	Specialized
Year of production	2004
Current price	Check price Here ==>
Color choice	-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	26 X 2.00 (inches) Specialized Roll-X
Bike rear tire	Not Available
Bike wheel size	26 (inches) Wheels
Brakeset type	Shimano BR-420 Levers Shimano BR-420 Brakes
Hubs for disc brakes	Q and R Joy Tech Aluminum
Rims manufacturer	32-hole Mavic XM 117 Disc
Spoke nipples type	Brass Nipples
Spoke wheel	15ga. Straight Gauge Stainless Steel

Frame and Body Specs

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

Gearing Specifications

Bicycle chain	1/2 X 3/32 (inches) Shimano CN-HG53
Bottom bracket shell width	68 (millimeters) English
Bottom bracket type	113 (millimeters) Spindle Shimano BB-UN25
Crankset parts and sizes	22/32/44 Teeth Specialized Forearm II Comp
Gear shift levers	Shimano Deore RapidFire SL
Rear gear set	11 - 32 Teeth 9-speed

Specialized Rockhopper Comp Fork System Data

Derailleur (Front)	Bottom-pull and clamp-on 34.9 (millimeters) Shimano Deore
Derailleur (Rear)	Shimano Deore LX SGS
Fork material	Single Crown Aluminum
Fork type	80 (millimeters) Travel Answer Manitou Axel Elite

Other Specs of Specialized Rockhopper Comp

Component group sets	Mountain Mix
Pedals details	Shimano PD-M505 SPD
Rear shock absorber	Not Available
Saddle seat	Specialized Body Geometry
Seat post extension	30.9 (millimeters) Diameter Specialized Aluminum

Trek 3900

General Infos

Model	3900
Manufacturer	Trek
Year of production	2006
Current price	Check price Here ==>
Color choice	- Willow Green and Gray Green -Matte Lava Black and Matte Black
Sizes	- 13 (inches) - 16 (inches) - 18 (inches) - 19.5 (inches) - 21 (inches) - 22.5 (inches) - womens 13 (inches) - womens 16 (inches) - womens 19.5 (inches)

Wheels And Breaking System

Bike front tire	26 X 2.00 (inches) Bontrager Connection Trail
Bike rear tire	Not Available
Bike wheel size	26 (inches) Wheels
Brakeset type	Shimano EF-50 Levers Tektro Linear-pull Brakes
Hubs for disc brakes	Rear: Shimano RM30 Front: Aluminum
Rims manufacturer	Matrix 550
Spoke nipples type	Not Available
Spoke wheel	Stainless Steel

Frame and Body Specs

Frame materials	Alpha Aluminum
Frame type	TIG-welded
Handlebar construction	Hi-tensile
Handlebar extender	Not Available
Handlebar stem details	Bontrager
Headset size	Aheadset Slimstak

Gearing Specifications

Bicycle chain	Not Available
Bottom bracket shell width	Not Available
Bottom bracket type	Not Available
Crankset parts and sizes	24/34/42 Teeth SR XCC-150
Gear shift levers	Shimano EF50
Rear gear set	11 - 32 Teeth 8-speed

Trek 3900 Fork System Data

Derailleur (Front)	Shimano FD-C050
Derailleur (Rear)	Shimano Acera
Fork material	Single Crown Aluminum
Fork type	70 (millimeters) Travel InSync Grind 1

Other Specs of Trek 3900

Component group sets	Mountain Mix
Pedals details	Nylon Platform
Rear shock absorber	Not Available
Saddle seat	Bontrager Sport
Seat post extension	Bontrager