Specialized HARDROCK GX SPORT 1997 VS Specialized P.20 AMATEUR 2011 specs comparison

Specialized Hardrock GX Sport

General Infos

Model	Hardrock GX Sport
Manufacturer	Specialized
Year of production	1997
Current price	Check price Here ==>
Color choice	- green -Black
Sizes	- 13.5 (inches) - 15.5 (inches) - 17 (inches) - 19 (inches) - 20.5 (inches)
Sizes	- 13.5 (inches) - 15.5 (inches) - 17 (inches) - 19 (inches) - 20.5 (inches)

Wheels And Breaking System

Bike front tire	26 X 1.95 (inches) Specialized Hardrock'R
Bike rear tire	Not Available
Bike wheel size	26 (inches) Wheels
Brakeset type	Aluminum Levers Shimano Brakes
Hubs for disc brakes	Q and R Rear: Shimano Cassette Front: SBC Aluminum Quick Release
Rims manufacturer	36-hole Araya VP-20
Spoke nipples type	Brass Nipples
Spoke wheel	2.0 (millimeters) Straight Gauge Stainless Steel

Frame and Body Specs

Frame materials	Chromoly Main Triangle and hi-tensile Steel Rear Stays
Frame type	TIG-welded
Handlebar construction	SBC Aluminum
Handlebar extender	Optional
Handlebar stem details	SBC Fast Fit
Headset size	1 1/8 (inches) Threadless

Gearing Specifications

Bicycle chain	1/2 X 3/32 (inches)
Bottom bracket shell width	68 (millimeters) English
Bottom bracket type	Shimano
Crankset parts and sizes	24/34/42 Teeth SBC Strongarm Sport
Gear shift levers	Grip Shift MRX-170
Rear gear set	11 - 28 Teeth 7-speed

Specialized Hardrock GX Sport Fork System Data

Derailleur (Front)	Bottom-pull and clamp-on 31.8 (millimeters) Shimano Alivio Top-swing
Derailleur (Rear)	Shimano Alivio
Fork material	Unicrown Crown Chromoly
Fork type	SBC

Other Specs of Specialized Hardrock GX Sport

Component group sets	Shimano Alivio
Pedals details	Resin
Rear shock absorber	Not Available
Saddle seat	SBC Softlite Super
Seat post extension	30.4 (millimeters) Diameter Aluminum Micro-adjust

Specialized P.20 Amateur

General Infos

Model	P.20 Amateur
Manufacturer	Specialized
Year of production	2011
Current price	Check price Here ==>
Color choice	- Blu -Black
Sizes	- 20.5 TT (inches)

Wheels And Breaking System

Bike front tire	20 X 2.2 (inches) Specialized Rhythm Lite Sport
Bike rear tire	Not Available
Bike wheel size	20 (inches) Wheels
Brakeset type	Lever U Brake Rear Levers Tektro FX-340 U-brake Rear Brakes
Hubs for disc brakes	Rear: Forged Alloy Cassette Front: Forged Alloy Low Flange
Rims manufacturer	36-hole Alloy Single Wall
Spoke nipples type	Not Available
Spoke wheel	14ga. Butted Stainless

Frame and Body Specs

Frame materials	Hi Ten
Frame type	TIG-welded
Handlebar construction	2-piece CrMo
Handlebar extender	Optional
Handlebar stem details	Forged Alloy
Headset size	1 1/8 (inches) Threadless Campy Spec Integrated Sealed Cartridge Bearing

Gearing Specifications

Bicycle chain	1/2 X 1/8 (inches) KMC Z510H
Bottom bracket shell width	Not Available
Bottom bracket type	Mid BB
Crankset parts and sizes	25t Teeth P. 3pc Tubulars
Gear shift levers	Not Available
Rear gear set	12 Teeth 1-speed

Specialized P.20 Amateur Fork System Data

Derailleur (Front)	Not Available
Derailleur (Rear)	Not Available
Fork material	Single Crown Hi Ten
Fork type	Hi Ten

Other Specs of Specialized P.20 Amateur

Component group sets	Dirt Jump Mix
Pedals details	P. Lo-Pro Plastic Platform
Rear shock absorber	Not Available
Saddle seat	P. Combo
Seat post extension	25.4 (millimeters) Diameter Alloy