Specialized ROCKHOPPER 1994 VS Trek 820 2006 specs comparison

Specialized Rockhopper

General Infos

Model	Rockhopper
Manufacturer	Specialized
Year of production	1994
Current price	Check price Here ==>
Color choice	-Not found
Sizes	- 14.5 (inches) - 16.5 (inches) - 18 (inches) - 20 (inches) - 22 (inches)
Sizes	- 14.5 (inches) - 16.5 (inches) - 18 (inches) - 20 (inches) - 22 (inches)

Wheels And Breaking System

Bike front tire	Specialized Ground Control
Bike rear tire	Not Available
Bike wheel size	Not Available
Brakeset type	Levers Shimano Alivio Brakes
Hubs for disc brakes	Shimano Alivio
Rims manufacturer	32-hole Araya GP-710
Spoke nipples type	Not Available
Spoke wheel	Not Available

Frame and Body Specs

Frame materials	Specialized Direct Drive Light Double-butted Chromoly
Frame type	TIG-welded Steel
Handlebar construction	Flat Alloy
Handlebar extender	Not Available
Handlebar stem details	TIG-welded Chromoly
Headset size	Not Available

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 Alivio
Gear shift levers	Shimano Alivio Rapidfire Plus With Optical Gear Display
Rear gear set	11 - 28 Teeth 7-speed

Specialized Rockhopper Fork System Data

Derailleur (Front)	Shimano Alivio
Derailleur (Rear)	Shimano STX
Fork material	Not Available
Fork type	Specialized Direct Drive Chromoly

Other Specs of Specialized Rockhopper

Component group sets	Shimano Alivio
Pedals details	HTI P-48
Rear shock absorber	Not Available
Saddle seat	Perforated Cover Specialized Gel Foam
Seat post extension	Alloy Micro-adjust

Trek 820

General Infos

Model	820
Manufacturer	Trek
Year of production	2006
Current price	Check price Here ==>
Color choice	- Hot Orange and Metallic Dark Silver -Rally Blue and Metallic Silver
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	Aluminum
Rims manufacturer	Matrix 550
Spoke nipples type	Not Available
Spoke wheel	Stainless Steel

Frame and Body Specs

Frame materials	Hi-tensile Steel
Frame type	TIG-welded
Handlebar construction	Hi-tensile
Handlebar extender	Not Available
Handlebar stem details	Hi-tensile Steel
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	28/38/48 Teeth SR XCC-100
Gear shift levers	Shimano EF50
Rear gear set	13 - 34 Teeth 7-speed

Trek 820 Fork System Data

Derailleur (Front)	Shimano FD-C051
Derailleur (Rear)	Shimano Acera
Fork material	Unicrown Crown High-tensile Steel
Fork type	Trek

Other Specs of Trek 820

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