Specialized ROCKHOPPER SL EXPERT 2010 VS Trek 820 2009 specs comparison

Specialized Rockhopper SL Expert

General Infos

Model	Rockhopper SL Expert
Manufacturer	Specialized
Year of production	2010
Current price	Check price Here ==>
Color choice	-Black and Red
Sizes	- 13 (inches) - 15 (inches) - 17 (inches) - 19 (inches) - 21 (inches) - 23 (inches)
Sizes	- 13 (inches) - 15 (inches) - 17 (inches) - 19 (inches) - 21 (inches) - 23 (inches)

Wheels And Breaking System

Bike front tire	26 X 2.00 (inches) Specialized Fast Trak LK Control
Bike rear tire	Not Available
Bike wheel size	26 (inches) Wheels
Brakeset type	Avid Elixir 4 Levers Avid Elixir 4 Brakes
Hubs for disc brakes	Forged Alloy Disc
Rims manufacturer	DT Swiss 445D
Spoke nipples type	Not Available
Spoke wheel	14ga. Stainless

Frame and Body Specs

Frame materials	Specialized M4 ORE Aluminum
Frame type	TIG-welded
Handlebar construction	Alloy Riser
Handlebar extender	Optional
Handlebar stem details	3D Forged
Headset size	1 1/8 (inches) Integrated Campy Type

Gearing Specifications

Bicycle chain	1/2 X 3/32 (inches) KMC X-9
Bottom bracket shell width	Not Available
Bottom bracket type	Shimano ES-25
Crankset parts and sizes	22/32/44 Teeth Shimano FC-M521
Gear shift levers	Trigger Shimano SL-M531 Deore
Rear gear set	11 - 34 Teeth 9-speed

Specialized Rockhopper SL Expert Fork System Data

Derailleur (Front)	Top Swing and bottom Pull Shimano Deore
Derailleur (Rear)	Shimano XT RD-M772 SGS Shadow
Fork material	Not Available
Fork type	80 (millimeters) Or 100 (millimeters) RockShox Recon SLite

Other Specs of Specialized Rockhopper SL Expert

Component group sets	Mountain Mix
Pedals details	Alloy
Rear shock absorber	Not Available
Saddle seat	Specialized XC Body Geometry
Seat post extension	30.9 (millimeters) Diameter Alloy Double Bolt

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