Specialized ROCKHOPPER PRO DISC 2004 VS GT AVALANCHE EXPERT 2008 specs comparison

Specialized Rockhopper Pro Disc

General Infos

Model	Rockhopper Pro Disc
Manufacturer	Specialized
Year of production	2004
Current price	Check price Here ==>
Color choice	-Red
Sizes	- 15 (inches) - 17 (inches) - 19 (inches) - 21 (inches)
Sizes	- 15 (inches) - 17 (inches) - 19 (inches) - 21 (inches)

Wheels And Breaking System

Bike front tire	26 X 2.00 (inches) Specialized Roll-X
Bike rear tire	Not Available
Bike wheel size	26 (inches) Wheels
Brakeset type	Shimano BR-420 Levers Shimano BR-M515 Mechanical Disc Brakes
Hubs for disc brakes	Rear: Shimano HB-M475 Disc Front: Specialized Disc
Rims manufacturer	32-hole Mavic XM 117 Disc
Spoke nipples type	Brass Nipples
Spoke wheel	15ga. Straight Gauge Stainless Steel

Frame and Body Specs

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

Gearing Specifications

Bicycle chain	1/2 X 3/32 (inches) Shimano CN-HG73
Bottom bracket shell width	68 (millimeters) English
Bottom bracket type	113 (millimeters) Spindle Shimano BB-ES30
Crankset parts and sizes	22/32/44 Teeth Specialized Forearm II
Gear shift levers	Shimano Deore RapidFire SL
Rear gear set	11 - 32 Teeth 9-speed

Specialized Rockhopper Pro Disc Fork System Data

Derailleur (Front)	Bottom-pull and clamp-on 34.9 (millimeters) Shimano Deore
Derailleur (Rear)	Shimano Deore LX SGS
Fork material	Single Crown Aluminum
Fork type	80 (millimeters) Travel Answer Manitou Axel Elite

Other Specs of Specialized Rockhopper Pro Disc

Component group sets	Mountain Mix
Pedals details	Shimano PD-M505 SPD
Rear shock absorber	Not Available
Saddle seat	Specialized Body Geometry Pro
Seat post extension	30.9 (millimeters) Diameter Aluminum

GT Avalanche Expert

General Infos

Model	Avalanche Expert
Manufacturer	GT
Year of production	2008
Current price	Check price Here ==>
Color choice	-Steel Blue
Sizes	- Xsmall - small - medium - large - xlarge

Wheels And Breaking System

Bike front tire	26 (inches) Kenda Nevagal
Bike rear tire	Not Available
Bike wheel size	26 (inches) Wheels
Brakeset type	Shimano Hydraulic Levers Shimano Hydraulic Disc Brakes
Hubs for disc brakes	Shimano Disc
Rims manufacturer	WTB Speed Disc
Spoke nipples type	Brass CP
Spoke wheel	14ga. DT Swiss Stainless Steel

Frame and Body Specs

Frame materials	GT 6061 Aluminum
Frame type	TIG-welded
Handlebar construction	GT AL Riser OS
Handlebar extender	Optional
Handlebar stem details	GT ATB OS
Headset size	1 1/8 (inches) Zero Stack

Gearing Specifications

Bicycle chain	Shimano
Bottom bracket shell width	Not Available
Bottom bracket type	Not Available
Crankset parts and sizes	22/32/44 Teeth TruVativ Firex
Gear shift levers	SRAM X.7 Trigger
Rear gear set	12 - 32 Teeth 9-speed

GT Avalanche Expert Fork System Data

Derailleur (Front)	Shimano LX
Derailleur (Rear)	SRAM X.9
Fork material	Single Crown Aluminum and magnesium
Fork type	85-130 (millimeters) RockShox TORA

Other Specs of GT Avalanche Expert

Component group sets	Mountain Mix
Pedals details	Crank Brothers Candy
Rear shock absorber	Not Available
Saddle seat	WTB Rocket V Comp
Seat post extension	Micro-adjust