Jamis AURORA 1993 VS Ross MT. ST. HELENS 1997 specs comparison

Jamis Aurora

General Infos

Model	Aurora
Manufacturer	Jamis
Year of production	1993
Current price	Check price Here ==>
Color choice	-Not found
Sizes	- 16 - 17.5 - 19.5 - 21.5
Sizes	- 16 - 17.5 - 19.5 - 21.5

Wheels And Breaking System

Bike front tire	26 X 2.10 (inches) Ritchey Z-Max Kevlar
Bike rear tire	Not Available
Bike wheel size	26 (inches) Wheels
Brakeset type	Levers Shimano Deore LX Brakes
Hubs for disc brakes	Shimano Deore LX
Rims manufacturer	32-hole Araya RM-400 Pro
Spoke nipples type	Not Available
Spoke wheel	Not Available

Frame and Body Specs

Frame materials	Tange MTB DB Chrome-moly
Frame type	TIG-welded Steel
Handlebar construction	Spectre Wonderbar 6061 T-6
Handlebar extender	Not Available
Handlebar stem details	Aheadset Type Spectre UL Comp
Headset size	Not Available

Gearing Specifications

Bicycle chain	Shimano CN-HG70
Bottom bracket shell width	Not Available
Bottom bracket type	Not Available
Crankset parts and sizes	26/36/46 Teeth Shimano Deore LX
Gear shift levers	Shimano Deore LX Rapidfire Plus
Rear gear set	12 - 28 Teeth 7-speed

Jamis Aurora Fork System Data

Derailleur (Front)	Shimano Deore LX
Derailleur (Rear)	Shimano Deore LX
Fork material	Not Available
Fork type	Rock Shox Mag 10

Other Specs of Jamis Aurora

Component group sets	Shimano Deore LX Rapidfire Plus
Pedals details	Spectre UL Comp With Clips & Straps
Rear shock absorber	Not Available
Saddle seat	Spectre UL Comp and 250
Seat post extension	330 (millimeters) Spectre UL Comp

Ross Mt. St. Helens

General Infos

Model	Mt. St. Helens
Manufacturer	Ross
Year of production	1997
Current price	Check price Here ==>
Color choice	-Green and blue fade
Sizes	- Small - Medium - Large - Extra large

Wheels And Breaking System

Bike front tire	26 X 1.90 (inches) Hutchinson On The Rocks
Bike rear tire	Not Available
Bike wheel size	26 (inches) Wheels
Brakeset type	Dia-Compe SS-6 Levers Shimano AceraX M-System Brakes
Hubs for disc brakes	Q and R Rear: Joy Tech Aluminum Cassette Front: Joy Tech Big Hub Q and R
Rims manufacturer	32-hole Rigida LASER
Spoke nipples type	Brass Nipples
Spoke wheel	2.0 (millimeters) Straight Gauge Sapim Stainless Steel

Frame and Body Specs

Frame materials	Carbon Reinforced Thermoplastic
Frame type	Monocoque
Handlebar construction	JY 230HB Aluminum
Handlebar extender	Ross One-piece Aluminum
Handlebar stem details	Kalloy Aluminum
Headset size	1 1/8 (inches) Threadless YST CS558

Gearing Specifications

Bicycle chain	1/2 X 3/32 (inches) Shimano CN-HG50
Bottom bracket shell width	73 (millimeters) Threadless
Bottom bracket type	113 (millimeters) Spindle YST BB 966
Crankset parts and sizes	22/34/42 Teeth Sugino Impel 300
Gear shift levers	Grip Shift ESP 500
Rear gear set	11 - 28 Teeth 7-speed

Ross Mt. St. Helens Fork System Data

Derailleur (Front)	Top-pull and clamp-on 35.0 (millimeters) Shimano Alivio Top-swing
Derailleur (Rear)	Grip Shift ESP 5.0
Fork material	Triple-clamp Crown Aluminum
Fork type	Akela Elastomer

Other Specs of Ross Mt. St. Helens

Component group sets	Grip Shift and Alivio
Pedals details	Resin Body With Clips & Straps Steel Cage
Rear shock absorber	Not Available
Saddle seat	Selle Master Anatomic
Seat post extension	27.0 (millimeters) Diameter Aluminum Micro-adjust