Specialized ROCKHOPPER 1995 VS Trek 820 COMFORT 1998 specs comparison

Specialized Rockhopper

General Infos

Model	Rockhopper
Manufacturer	Specialized
Year of production	1995
Current price	Check price Here ==>
Color choice	-Steel berry -uranium gray
Sizes	- 13.5 (inches) - 15 (inches) - 17 (inches) - 19 (inches) - 21 (inches)
Sizes	- 13.5 (inches) - 15 (inches) - 17 (inches) - 19 (inches) - 21 (inches)

Wheels And Breaking System

Bike front tire	26 X 1.95 (inches) Specialized Hardrock
Bike rear tire	Not Available
Bike wheel size	26 (inches) Wheels
Brakeset type	Shimano Tourney Levers Shimano Alivio Brakes
Hubs for disc brakes	Shimano Alivio
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	Oversize Short Butted Chromoly
Frame type	TIG-welded Steel
Handlebar construction	Specialized Alloy
Handlebar extender	Optional
Handlebar stem details	Chromoly
Headset size	1 1/8 (inches) Steel

Gearing Specifications

Bicycle chain	1/2 X 3/32 (inches) Shimano CN-IG30
Bottom bracket shell width	Not Available
Bottom bracket type	Not Available
Crankset parts and sizes	22/34/42 Teeth Shimano Alivio HyperDrive-C
Gear shift levers	Grip Shift SRT-300
Rear gear set	11 - 28 Teeth 7-speed

Specialized Rockhopper Fork System Data

Derailleur (Front)	Bottom-pull and clamp-on 31.8 (millimeters) Shimano Alivio
Derailleur (Rear)	Shimano Alivio GS
Fork material	Unicrown Crown Direct Drive Chromoly
Fork type	Specialized Direct Drive

Other Specs of Specialized Rockhopper

Component group sets	Shimano Alivio
Pedals details	HTI Steel and resin
Rear shock absorber	Not Available
Saddle seat	Specialized Prolong Sport
Seat post extension	30.4 (millimeters) Diameter Kalloy SP-262

Trek 820 Comfort

General Infos

Model	820 Comfort
Manufacturer	Trek
Year of production	1998
Current price	Check price Here ==>
Color choice	-Ice Green
Sizes	- 13 (inches) - 16.5 (inches) - 18 (inches) - 19.5 (inches) - 21 (inches) - 22.5 (inches) - 24 (inches)

Wheels And Breaking System

Bike front tire	26 X 1.90 (inches)
Bike rear tire	Not Available
Bike wheel size	26 (inches) Wheels
Brakeset type	Lee Chi LV77E Levers Lee Chi TX22 Brakes
Hubs for disc brakes	Q and R Rear: Shimano Altus Front: Aluminum
Rims manufacturer	32-hole Weinmann 519
Spoke nipples type	Brass Nipples
Spoke wheel	2.0 (millimeters) Straight Gauge Stainless Steel

Frame and Body Specs

Frame materials	Chromoly
Frame type	TIG-welded
Handlebar construction	Steel
Handlebar extender	Optional
Handlebar stem details	Girvin Flexstem
Headset size	1 1/8 (inches) Victor VP-H97W Sealed

Gearing Specifications

Bicycle chain	1/2 X 3/32 (inches) Sachs PC-10
Bottom bracket shell width	68 (millimeters) English
Bottom bracket type	118 (millimeters) Spindle Shimano BB-CT91E
Crankset parts and sizes	24/34/42 Teeth Shimano Altus
Gear shift levers	Grip Shift MRX-170
Rear gear set	11 - 28 Teeth 7-speed

Trek 820 Comfort Fork System Data

Derailleur (Front)	Top-pull Shimano Altus Top-swing
Derailleur (Rear)	Shimano Alivio
Fork material	Unicrown Crown Chromoly
Fork type	Trek

Other Specs of Trek 820 Comfort

Component group sets	Mountain Mix
Pedals details	Resin
Rear shock absorber	Not Available
Saddle seat	Spring Type
Seat post extension	27.2 (millimeters) Diameter SP57 Suspension Post