Specialized ROCKHOPPER FS 1995 VS Trek 820 2009 specs comparison

Specialized Rockhopper FS

General Infos

Model	Rockhopper FS
Manufacturer	Specialized
Year of production	1995
Current price	Check price Here ==>
Color choice	-Team red
Sizes	- 13.5 (inches) - 15 (inches) - 17 (inches) - 19 (inches) - 21 (inches)
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 More Extreme Front: 26 X 1.95 (inches) Specialized Pro Control
Bike rear tire	Not Available
Bike wheel size	26 (inches) Wheels
Brakeset type	Dia-Compe PC-3 Levers Shimano Alivio Brakes
Hubs for disc brakes	Shimano Alivio
Rims manufacturer	32-hole Mavic 236
Spoke nipples type	Brass Nipples
Spoke wheel	2.0 (millimeters) Straight Gauge Stainless Steel

Frame and Body Specs

Frame materials	Oversize Short Butted Chromoly
Frame type	TIG-welded Steel
Handlebar construction	Specialized Alloy
Handlebar extender	Optional
Handlebar stem details	Chromoly
Headset size	1 1/8 (inches) Steel

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	24/34/42 Teeth Shimano Alivio HyperDrive-C
Gear shift levers	Grip Shift SRT-400
Rear gear set	11 - 28 Teeth 7-speed

Specialized Rockhopper FS Fork System Data

Derailleur (Front)	Bottom-pull and clamp-on 31.8 (millimeters) Shimano Alivio
Derailleur (Rear)	Shimano STX
Fork material	Chromoly Triple-clamp Crown Aluminum
Fork type	SR DuoTrack 9005

Other Specs of Specialized Rockhopper FS

Component group sets	Shimano Alivio
Pedals details	HTI Steel and resin With Clips & Straps
Rear shock absorber	Not Available
Saddle seat	Specialized Prolong Sport
Seat post extension	30.4 (millimeters) Diameter Alloy

Trek 820

General Infos

Model	820
Manufacturer	Trek
Year of production	2009
Current price	Check price Here ==>
Color choice	- Gloss Black and Gloss White -Matte Black
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 EZ Fire Integrated Levers Tektro V-brake Brakes
Hubs for disc brakes	Alloy
Rims manufacturer	Matrix 550
Spoke nipples type	Not Available
Spoke wheel	Not Available

Frame and Body Specs

Frame materials	Trek Custom Steel With CroMoly Seat Tube
Frame type	TIG-welded
Handlebar construction	Bontrager Approved
Handlebar extender	Optional
Handlebar stem details	Bontrager Approved
Headset size	1 1/8 (inches) Threadless VP A76C-TK

Gearing Specifications

Bicycle chain	Not Available
Bottom bracket shell width	Not Available
Bottom bracket type	Not Available
Crankset parts and sizes	28/38/48 Teeth SR Suntour XCC T-208
Gear shift levers	Shimano EF-50 EZ Fire Integrated
Rear gear set	13 - 34 Teeth 7-speed

Trek 820 Fork System Data

Derailleur (Front)	Shimano C051
Derailleur (Rear)	Shimano Acera
Fork material	Single Crown
Fork type	63 (millimeters) Travel SR Suntour M-2025

Other Specs of Trek 820

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