North Star ESTRELLA 1997 VS Specialized HARDROCK PRO DISC 2006 specs comparison

North Star Estrella

General Infos

Model	Estrella
Manufacturer	North Star
Year of production	1997
Current price	Check price Here ==>
Color choice	-Matte blue
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 2.10 (inches) WTB VelociRaptor
Bike rear tire	Not Available
Bike wheel size	26 (inches) Wheels
Brakeset type	Tektro RBP-375A Levers Tektro 876AG V-Brake Brakes
Hubs for disc brakes	Rear: Shimano STX-RC Front: North Star
Rims manufacturer	32-hole Araya GP-710
Spoke nipples type	Brass Nipples
Spoke wheel	2.0 (millimeters) Straight Gauge Stainless Steel

Frame and Body Specs

Frame materials	Double-butted Heat-treated Chromoly
Frame type	TIG-welded
Handlebar construction	North Star Pro Series
Handlebar extender	Optional
Handlebar stem details	North Star
Headset size	1 (inches) Threadless Dia-Tech

Gearing Specifications

Bicycle chain	1/2 X 3/32 (inches) Shimano CN-IG51
Bottom bracket shell width	68 (millimeters) English
Bottom bracket type	Shimano BB-UN52
Crankset parts and sizes	24/34/42 Teeth Shimano Alivio
Gear shift levers	Grip Shift SRT-400i
Rear gear set	11 - 30 Teeth 8-speed

North Star Estrella Fork System Data

Derailleur (Front)	Top-pull and clamp-on 28.6 (millimeters) Shimano Alivio Top-swing
Derailleur (Rear)	Shimano STX
Fork material	Triple-clamp Crown Magnesium
Fork type	Rock Shox Indy C

Other Specs of North Star Estrella

Component group sets	Shimano Alivio
Pedals details	Chromoly Cage With Clips & Straps
Rear shock absorber	Not Available
Saddle seat	North Star Competition
Seat post extension	North Star Micro-adjust

Specialized Hardrock Pro Disc

General Infos

Model	Hardrock Pro Disc
Manufacturer	Specialized
Year of production	2006
Current price	Check price Here ==>
Color choice	-Not found
Sizes	- Extra small - Small - Medium - Large - Extra large

Wheels And Breaking System

Bike front tire	Wire Bead 26 X 2.20 (inches) Specialized Enduro Sport
Bike rear tire	Not Available
Bike wheel size	26 (inches) Wheels
Brakeset type	Avid FR-5 Levers Mechanical Disc With 6 (inches) Roundagon Rotor Brakes Avid BB5
Hubs for disc brakes	Rear: Joy-Tech Disc Disc Cassette Ground Race Double Sealed Loose Ball Ground Race Double Sealed Loose Ball With Alloy QR Front: Joy-Tech
Rims manufacturer	36-hole SUN Singletrack Disc
Spoke nipples type	Brass Nipples
Spoke wheel	14ga. Straight Gauge Stainless Steel

Frame and Body Specs

Frame materials	A1 Premium Aluminum
Frame type	TIG-welded
Handlebar construction	38 (millimeters) Rise 6 Degree Upsweep 640 (millimeters) Width 8 Degree Sweep Alloy
Handlebar extender	Optional
Handlebar stem details	10 Degree Rise Alloy Specialized Mobius
Headset size	Sealed Ball Retainer 1 1/8 (inches) Threadless

Gearing Specifications

Bicycle chain	SRAM PC-951 With Power Link
Bottom bracket shell width	68 (millimeters) English
Bottom bracket type	113 (millimeters) Spindle Truvativ Power Spline
Crankset parts and sizes	36t Heat Treated Cr-Mo X 24t Heat Treated Cr-Mo With Poly Bash Guard Teeth Truvativ Blaze PS 6066-T6
Gear shift levers	9-speed Triggers SRAM X-7
Rear gear set	11 - 34 Teeth 9-speed

Specialized Hardrock Pro Disc Fork System Data

Derailleur (Front)	34.9 (millimeters) Clamp Botttom Pull Top Swing SRAM X-GEN
Derailleur (Rear)	Short Cage SRAM X-7
Fork material	Single Crown Magnesium and aluminum and steel
Fork type	100 (millimeters) Marzocchi MZ-3

Other Specs of Specialized Hardrock Pro Disc

Component group sets	SRAM Mix
Pedals details	Specialized Alloy Platform With 9/16 (inches) Cr-Mo Spindle
Rear shock absorber	Not Available
Saddle seat	Specialized Body Geometry Sport MTB
Seat post extension	30.9 (millimeters) Diameter Alloy Micro Adjust