Specialized ROCKHOPPER A1 1997 VS Kona UNIT 2006 specs comparison

Specialized Rockhopper A1

General Infos

Model	Rockhopper A1
Manufacturer	Specialized
Year of production	1997
Current price	Check price Here ==>
Color choice	- red -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	SBC A1 Premium Aluminum
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 A1 Fork System Data

Derailleur (Front)	Bottom-pull and clamp-on 35.0 (millimeters) Shimano Alivio Top-swing
Derailleur (Rear)	Shimano STX
Fork material	Unicrown Crown SBC DirectDrive Chromoly
Fork type	SBC

Other Specs of Specialized Rockhopper A1

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	30.9 (millimeters) Diameter Aluminum Micro-adjust

Kona Unit

General Infos

Model	Unit
Manufacturer	Kona
Year of production	2006
Current price	Check price Here ==>
Color choice	-Brown
Sizes	- 16 (inches) - 18 (inches) - 19 (inches) - 20 (inches)

Wheels And Breaking System

Bike front tire	26 X 2.20 (inches) Nokian NBX Lite
Bike rear tire	Not Available
Bike wheel size	26 (inches) Wheels
Brakeset type	Avid SD-5 Front and Avid Single Digit 5 Rear Levers Avid SD-5 Brakes
Hubs for disc brakes	Rear: KK Single Speed Disc Front: KK Disc
Rims manufacturer	Sun Mach 4
Spoke nipples type	Not Available
Spoke wheel	15ga Front and 14ga Rear Straight Gauge Stainless Steel

Frame and Body Specs

Frame materials	Dedaccial SAT Butted Cromoly
Frame type	TIG-welded
Handlebar construction	Truvativ LE Riser
Handlebar extender	Optional
Handlebar stem details	Truvativ XR 3D
Headset size	Aheadset STS

Gearing Specifications

Bicycle chain	KMC Z610
Bottom bracket shell width	Not Available
Bottom bracket type	Race Face SRX ISIS
Crankset parts and sizes	24 Teeth Race Face Ride XC ISIS
Gear shift levers	Not Available
Rear gear set	17 Teeth 1-speed

Kona Unit Fork System Data

Derailleur (Front)	Not Available
Derailleur (Rear)	Not Available
Fork material	Unicrown Crown Chromoly
Fork type	Kona Project Two Disc

Other Specs of Kona Unit

Component group sets	Mountain Mix
Pedals details	Shimano PD-M505 Clipless
Rear shock absorber	Not Available
Saddle seat	WTB Laser V Comp
Seat post extension	Truvativ XR