Trek 3900 2007 VS Specialized ROCKHOPPER COMP A1 FS 1995 specs comparison

Trek 3900

General Infos

Model	3900
Manufacturer	Trek
Year of production	2007
Current price	Check price Here ==>
Color choice	- Matte Black and Matte Smooth Silver -Trans Blue
Sizes	- 13 (inches) - 16 (inches) - 18 (inches) - 19.5 (inches) - 21 (inches) - 22.5 (inches)
Sizes	- 13 (inches) - 16 (inches) - 18 (inches) - 19.5 (inches) - 21 (inches) - 22.5 (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 V Brakes
Hubs for disc brakes	Rear: Shimano RM-30 Front: Alloy
Rims manufacturer	Matrix 550
Spoke nipples type	Not Available
Spoke wheel	Not Available

Frame and Body Specs

Frame materials	Alpha Aluminum
Frame type	TIG-welded
Handlebar construction	Bontrager Approved
Handlebar extender	Optional
Handlebar stem details	Bontrager Approved
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-T102
Gear shift levers	Shimano EF-50
Rear gear set	11 - 32 Teeth 8-speed

Trek 3900 Fork System Data

Derailleur (Front)	Shimano C-050
Derailleur (Rear)	Shimano Acera
Fork material	Single Crown Aluminum and steel
Fork type	70 (millimeters) Travel InSync Grind 1

Other Specs of Trek 3900

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

Specialized Rockhopper Comp A1 FS

General Infos

Model	Rockhopper Comp A1 FS
Manufacturer	Specialized
Year of production	1995
Current price	Check price Here ==>
Color choice	-Blue satin
Sizes	- 13.5 (inches) - 15 (inches) - 17 (inches) - 19 (inches) - 21 (inches)

Wheels And Breaking System

Bike front tire	Rear: 26 X 1.95 (inches) Specialized Ground Control Front: 26 X 1.95 (inches) Specialized Shockmaster
Bike rear tire	Not Available
Bike wheel size	26 (inches) Wheels
Brakeset type	Dia-Compe PC-3 Levers Shimano STX M-System Brakes
Hubs for disc brakes	Shimano STX
Rims manufacturer	32-hole Specialized Z-23
Spoke nipples type	Brass Nipples
Spoke wheel	2.0 (millimeters) Straight Gauge Stainless Steel

Frame and Body Specs

Frame materials	7005 aluminum c
Frame type	Welded Aluminum
Handlebar construction	Specialized Alloy
Handlebar extender	Optional
Handlebar stem details	Specialized Cold-forged Alloy Aheadset
Headset size	1 1/8 (inches) Dia-Compe Kontak Aheadset ST

Gearing Specifications

Bicycle chain	1/2 X 3/32 (inches) Shimano CN-IG30
Bottom bracket shell width	Not Available
Bottom bracket type	Not Available
Crankset parts and sizes	22/32/42 Teeth Shimano STX HyperDrive-C
Gear shift levers	Grip Shift SRT-400
Rear gear set	11 - 28 Teeth 7-speed

Specialized Rockhopper Comp A1 FS Fork System Data

Derailleur (Front)	Bottom-pull and clamp-on 31.8 (millimeters) Shimano STX
Derailleur (Rear)	Shimano STX
Fork material	Triple-clamp Crown Magnesium
Fork type	Rock Shox Quadra 5

Other Specs of Specialized Rockhopper Comp A1 FS

Component group sets	Shimano STX
Pedals details	HTI Steel and resin With Clips & Straps
Rear shock absorber	Not Available
Saddle seat	Specialized Prolong Sport
Seat post extension	30.9 (millimeters) Diameter Kalloy SP-266