Trek 820 2002 VS Specialized HARDROCK COMP DISC 2007 specs comparison

Trek 820

General Infos

Model	820
Manufacturer	Trek
Year of production	2002
Current price	Check price Here ==>
Color choice	- Dark Silver and Silver -Dark Blue
Sizes	- 13 (inches) - 16.5 (inches) - 18 (inches) - 19.5 (inches) - 21 (inches) - 22.5 (inches) - womens 17 (inches)
Sizes	- 13 (inches) - 16.5 (inches) - 18 (inches) - 19.5 (inches) - 21 (inches) - 22.5 (inches) - womens 17 (inches)

Wheels And Breaking System

Bike front tire	26 X 1.95 (inches) Bontrager Connection
Bike rear tire	Not Available
Bike wheel size	26 (inches) Wheels
Brakeset type	Shimano EF-29 Levers Aluminum Linear-pull Brakes
Hubs for disc brakes	Q and R Aluminum
Rims manufacturer	Matrix 550
Spoke nipples type	Not Available
Spoke wheel	14ga. Straight Gauge Stainless Steel

Frame and Body Specs

Frame materials	Chromoly Seat Tube and hi-tensile Steel
Frame type	TIG-welded
Handlebar construction	Hi-tensile Steel
Handlebar extender	Optional
Handlebar stem details	Aluminum Threadless
Headset size	1 1/8 (inches) Aheadset

Gearing Specifications

Bicycle chain	1/2 X 3/32 (inches)
Bottom bracket shell width	Not Available
Bottom bracket type	Not Available
Crankset parts and sizes	28/38/48 Teeth Sun Race FC-M35
Gear shift levers	Shimano EF-29
Rear gear set	13 - 30 Teeth 7-speed

Trek 820 Fork System Data

Derailleur (Front)	Shimano C051
Derailleur (Rear)	Shimano Altus
Fork material	Single Triple-clamp
Fork type	2.5 (inches) Travel RST Capa-CL

Other Specs of Trek 820

Component group sets	Mountain Mix
Pedals details	Nylon Platform
Rear shock absorber	Not Available
Saddle seat	Trek ATB
Seat post extension	Aluminum Micro-adjust

Specialized Hardrock Comp Disc

General Infos

Model	Hardrock Comp Disc
Manufacturer	Specialized
Year of production	2007
Current price	Check price Here ==>
Color choice	- Red -Bronze
Sizes	- Extra small - Small - Medium - Large - Extra large

Wheels And Breaking System

Bike front tire	26 X 2.10 (inches) Specialized Resolution
Bike rear tire	Not Available
Bike wheel size	26 (inches) Wheels
Brakeset type	Avid FR5 Levers Avid BB5 With 6 (inches) Rotor Brakes
Hubs for disc brakes	Rear: Shimano FH-M475 Front: Specialized Hi Lo Disc
Rims manufacturer	36-hole Specialized and Alex HRD 26
Spoke nipples type	Not Available
Spoke wheel	14ga. Straight Gauge Stainless Steel

Frame and Body Specs

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

Gearing Specifications

Bicycle chain	Shimano CN-HG50
Bottom bracket shell width	68 (millimeters)
Bottom bracket type	126 (millimeters) Spindle Shimano ES-25
Crankset parts and sizes	22/32/42 Teeth Shimano FCM-341-8
Gear shift levers	Shimano Alivio
Rear gear set	11 - 32 Teeth 8-speed

Specialized Hardrock Comp Disc Fork System Data

Derailleur (Front)	Shimano Acera
Derailleur (Rear)	Shimano Alivio
Fork material	Single Crown Steel and aluminum
Fork type	100 (millimeters) RST Gila Plus RA

Other Specs of Specialized Hardrock Comp Disc

Component group sets	Mountain Mix
Pedals details	Specialized Alloy Platform
Rear shock absorber	Not Available
Saddle seat	Specialized Body Geometry ATB
Seat post extension	30.9 (millimeters) Diameter Alloy Micro Adjust