Trek 3900 DISC 2011 VS Specialized ROCKHOPPER FS 1999 specs comparison

Trek 3900 Disc

General Infos

Model	3900 Disc
Manufacturer	Trek
Year of production	2011
Current price	Check price Here ==>
Color choice	-Deep 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 2.0 (inches) Bontrager LT3
Bike rear tire	Not Available
Bike wheel size	26 (inches) Wheels
Brakeset type	Shimano EF50 Levers Tektro Novela Brakes
Hubs for disc brakes	Rear: Shimano Alloy M475 Front: Formula DC20
Rims manufacturer	36-hole Bontrager 550
Spoke nipples type	Not Available
Spoke wheel	Not Available

Frame and Body Specs

Frame materials	Alloy
Frame type	TIG-welded
Handlebar construction	Bontrager Approved Riser
Handlebar extender	Optional
Handlebar stem details	Bontrager Approved
Headset size	1 1/8 (inches) Threadless Semi Integrated

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 Shimano M171
Gear shift levers	Shimano EF51
Rear gear set	11 - 32 Teeth 8-speed

Trek 3900 Disc Fork System Data

Derailleur (Front)	Shimano M190
Derailleur (Rear)	Shimano M360
Fork material	Single
Fork type	100 (millimeters) Travel SR Suntour XCT

Other Specs of Trek 3900 Disc

Component group sets	Shimano Mix
Pedals details	Wellgo Nylon Platform
Rear shock absorber	Not Available
Saddle seat	Bontager SSR
Seat post extension	31.6 (millimeters) Diameter Bontrager SSR

Specialized Rockhopper FS

General Infos

Model	Rockhopper FS
Manufacturer	Specialized
Year of production	1999
Current price	Check price Here ==>
Color choice	- Team Red -Brushed Steel
Sizes	- 13 (inches) - 15 (inches) - 17 (inches) - 19 (inches) - 21 (inches) - 23 (inches)

Wheels And Breaking System

Bike front tire	Rear: 26 X 1.95 (inches) Specialized Dirt Master Sport Front: 26 X 1.95 (inches) Specialized Dirt Control Sport
Bike rear tire	Not Available
Bike wheel size	26 (inches) Wheels
Brakeset type	Dia-Compe DP-7N Levers Dia-Compe 733 Direct Pull With Linear Spring Brakes
Hubs for disc brakes	Rear: Specialized STOUT Comp Front: Specialized Alloy
Rims manufacturer	32-hole Rear: Ritchey Rock OCR Front: Ritchey Rock SCX
Spoke nipples type	Brass Nipples
Spoke wheel	1.8 (millimeters) Straight Gauge Chung Nan Stainless Steel

Frame and Body Specs

Frame materials	Ritchey Nitanium
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	22/32/42 Teeth Specialized ForeArm Sport
Gear shift levers	Shimano Deore LX RapidFire SL
Rear gear set	11 - 32 Teeth 9-speed

Specialized Rockhopper FS Fork System Data

Derailleur (Front)	Bottom-pull and clamp-on 31.8 (millimeters) Shimano STX-RC Top-swing
Derailleur (Rear)	Shimano Deore LX SGS
Fork material	Triple-clamp Crown Aluminum and magnesium
Fork type	2.5 (inches) Travel Rock Shox Jett T2

Other Specs of Specialized Rockhopper FS

Component group sets	Mountain Mix
Pedals details	Aluminum Cage With Clips & Straps
Rear shock absorber	Not Available
Saddle seat	Specialized Prolong
Seat post extension	30.4 (millimeters) Diameter Specialized Micro-adjust