Specialized ROCKHOPPER PRO DISC 2004 VS Specialized P GROM 2009 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

Specialized P Grom

General Infos

Model	P Grom
Manufacturer	Specialized
Year of production	2009
Current price	Check price Here ==>
Color choice	-Gloss Teal
Sizes	- Small

Wheels And Breaking System

Bike front tire	24 X 2.20 (inches) Specialized Rhythm Lite Control
Bike rear tire	Not Available
Bike wheel size	24 (inches) Wheels
Brakeset type	Avid FR-5 Levers Avid BB5 With 160 (millimeters) Rotor Brakes
Hubs for disc brakes	Specialized Hi Lo Disc
Rims manufacturer	36-hole Specialized P-Disc AM
Spoke nipples type	Not Available
Spoke wheel	14ga. Stainless Steel

Frame and Body Specs

Frame materials	Chromoly
Frame type	TIG-welded
Handlebar construction	Specialized Alloy Riser
Handlebar extender	Optional
Handlebar stem details	Specialized Aggro
Headset size	1 1/8 (inches) Tank FX

Gearing Specifications

Bicycle chain	KMC X8
Bottom bracket shell width	Not Available
Bottom bracket type	Fuse Euro
Crankset parts and sizes	34 Teeth Fuse Tubular Cr-Mo With Bashguard
Gear shift levers	SRAM X.4 Trigger
Rear gear set	11 - 28 Teeth 8-speed

Specialized P Grom Fork System Data

Derailleur (Front)	Chain Retention Device Specialized Chain Guide
Derailleur (Rear)	SRAM X.5
Fork material	Single Crown Chromoly and magnesium
Fork type	80 (millimeters) Travel Marzocchi DJ3

Other Specs of Specialized P Grom

Component group sets	Mountain Mix
Pedals details	Specialized Alloy
Rear shock absorber	Not Available
Saddle seat	Specialized Fuse Lo Pro
Seat post extension	30.9 (millimeters) Diameter Micro Adjust Specialized Alloy Two Bolt