Specialized ROCKHOPPER 1997 VS Bianchi B.O.S.S. SINGLE SPEED 1998 specs comparison

Specialized Rockhopper

General Infos

Model	Rockhopper
Manufacturer	Specialized
Year of production	1997
Current price	Check price Here ==>
Color choice	- red -Dark blue
Sizes	- 13.5 (inches) - 15.5 (inches) - 17 (inches) - 18 (inches) - 19 (inches) - 20.5 (inches)
Sizes	- 13.5 (inches) - 15.5 (inches) - 17 (inches) - 18 (inches) - 19 (inches) - 20.5 (inches)

Wheels And Breaking System

Bike front tire	Rear: 26 X 1.90 (inches) Specialized Team Master Front: 26 X 2.00 (inches) Specialized Team Control
Bike rear tire	Not Available
Bike wheel size	26 (inches) Wheels
Brakeset type	Dia-Compe DP-7 Levers Dia-Compe Direct Pull Brakes
Hubs for disc brakes	Q and R Rear: Shimano Cassette Front: SBC Aluminum Quick Release
Rims manufacturer	32-hole Ritchey Rock SCX
Spoke nipples type	Brass Nipples
Spoke wheel	2.0 (millimeters) Straight Gauge Stainless Steel

Frame and Body Specs

Frame materials	Double-butted SBC DirectDrive Light Chromoly
Frame type	TIG-welded
Handlebar construction	SBC Aluminum
Handlebar extender	Optional
Handlebar stem details	SBC Aluminum
Headset size	1 1/8 (inches) Threadless Tange

Gearing Specifications

Bicycle chain	1/2 X 3/32 (inches) Shimano
Bottom bracket shell width	68 (millimeters) English
Bottom bracket type	SBC Sealed Cartridge
Crankset parts and sizes	22/32/42 Teeth SBC Son Of Strongarm
Gear shift levers	Grip Shift SRT-400i
Rear gear set	11 - 30 Teeth 7-speed

Specialized Rockhopper Fork System Data

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

Other Specs of Specialized Rockhopper

Component group sets	Not Available
Pedals details	Resin Body With Clips & Straps Aluminum Cage
Rear shock absorber	Not Available
Saddle seat	Specialized Prolong Evolution Carbotech
Seat post extension	30.4 (millimeters) Diameter Aluminum Micro-adjust

Bianchi B.O.S.S. Single Speed

General Infos

Model	B.O.S.S. Single Speed
Manufacturer	Bianchi
Year of production	1998
Current price	Check price Here ==>
Color choice	-CalTrans Orange
Sizes	- 17.5 (inches) - 19.5 (inches)

Wheels And Breaking System

Bike front tire	Rear: 26 X 1.95 (inches) Ritchey Omega Bite Front: 26 X 1.95 (inches) Ritchey Alfa Bite
Bike rear tire	Not Available
Bike wheel size	26 (inches) Wheels
Brakeset type	Avid AD-1.0 L Levers Avid 1D-10 Brakes
Hubs for disc brakes	Rear: Paul Components W.O.R.D. Front: Paul Components Fhub
Rims manufacturer	32-hole Mavic X138
Spoke nipples type	Brass Nipples
Spoke wheel	2.0 (millimeters) Straight Gauge Stainless Steel

Frame and Body Specs

Frame materials	Double-butted 7005 Aluminum
Frame type	TIG-welded
Handlebar construction	Kalloy Aluminum
Handlebar extender	Not Available
Handlebar stem details	Ritchey CompLite
Headset size	1 1/8 (inches) Threadless Aheadset

Gearing Specifications

Bicycle chain	1/2 X 3/32 (inches) Shimano CN-IG51
Bottom bracket shell width	68 (millimeters) English
Bottom bracket type	110 (millimeters) Spindle Shimano Cartridge
Crankset parts and sizes	44 Teeth Race Face Turbine With Spot Brand Chainring & Guard
Gear shift levers	Not Available
Rear gear set	18 Teeth 1-speed

Bianchi B.O.S.S. Single Speed Fork System Data

Derailleur (Front)	Not Available
Derailleur (Rear)	Not Available
Fork material	Unicrown Crown Chromoly
Fork type	Bianchi

Other Specs of Bianchi B.O.S.S. Single Speed

Component group sets	Single Speed Mountain Bike Mix
Pedals details	Resin
Rear shock absorber	Not Available
Saddle seat	SDG Ventura Kevlar
Seat post extension	27.2 (millimeters) Diameter Kalloy Aluminum Micro-adjust