AMP Research B4 1999 VS ProFlex 855 1995 specs comparison

AMP Research B4

General Infos

Model	B4
Manufacturer	AMP Research
Year of production	1999
Current price	🛒 View Price →
Color choice	- Polished -Candy Apple Red
Sizes	- Large - medium - small - xsmall
Sizes	- Large - medium - small - xsmall

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	Shimano Deore XT Levers AMP D1 Hydraulic Disc Brake System Brakes
Hubs for disc brakes	Rear: Shimano Deore XT Front: AMP Research D1
Rims manufacturer	32-hole Mavic X221
Spoke nipples type	Alloy Nipples
Spoke wheel	2.0 (millimeters) Double-butted DT Stainless Steel

Frame and Body Specs

Frame materials	Alcoa Alcalyte 6013 T6 Aluminum
Frame type	TIG-welded
Handlebar construction	Hsin Lung Aluminum
Handlebar extender	Optional
Handlebar stem details	Hsin Lung Aluminum
Headset size	1 1/8 (inches) Threadless Ritchey Logic

Gearing Specifications

Bicycle chain	1/2 X 3/32 (inches) Shimano CN-IG90
Bottom bracket shell width	68 (millimeters) Threadless
Bottom bracket type	110.5 (millimeters) Spindle Shimano Deore XT
Crankset parts and sizes	22/32/44 Teeth Shimano Deore XT
Gear shift levers	Shimano Deore XT RapidFire SL
Rear gear set	11 - 34 Teeth 9-speed

AMP Research B4 Fork System Data

Derailleur (Front)	Bottom-pull and clamp-on 35.0 (millimeters) Shimano Deore XT
Derailleur (Rear)	Shimano Deore XT GS
Fork material	Linkage Crown Alcoa Alcalyte 6013 T6 Aluminum
Fork type	2.25 (inches) Travel AMP Research F3 XC

Other Specs of AMP Research B4

Component group sets	Shimano Deore XT
Pedals details	Platform
Rear shock absorber	3.0 (inches) Travel AMP Research
Saddle seat	Serfas Lola
Seat post extension	31.6 (millimeters) Diameter JD Components

ProFlex 855

General Infos

Model	855
Manufacturer	ProFlex
Year of production	1995
Current price	🛒 View Price →
Color choice	-Blue -red
Sizes	- 14 (inches) - 16 (inches) - 18 (inches) - 20 (inches)

Wheels And Breaking System

Bike front tire	26 X 1.95 (inches) Tioga Psycho
Bike rear tire	Not Available
Bike wheel size	26 (inches) Wheels
Brakeset type	Shimano Deore XT Levers Shimano Deore LX M-System Brakes
Hubs for disc brakes	Shimano Deore LX
Rims manufacturer	32-hole Mavic M237
Spoke nipples type	Alloy Nipples
Spoke wheel	1.8 (millimeters) Straight Gauge Stainless Steel

Frame and Body Specs

Frame materials	Double-butted Alcoa 7005 Aluminum
Frame type	Welded Aluminum
Handlebar construction	6061 T6 Aluminum
Handlebar extender	Girvin Alloy
Handlebar stem details	Girvin Vector
Headset size	1 1/8 (inches) Tange-Seiki Aheadset

Gearing Specifications

Bicycle chain	1/2 X 3/32 (inches) Sachs SC-M55
Bottom bracket shell width	Not Available
Bottom bracket type	Not Available
Crankset parts and sizes	22/32/42 Teeth Sugino Impel 700
Gear shift levers	Shimano Deore XT RapidFire Plus
Rear gear set	11 - 28 Teeth 8-speed

ProFlex 855 Fork System Data

Derailleur (Front)	Bottom-pull and clamp-on 31.8 (millimeters) Shimano Deore XT Compact Drive
Derailleur (Rear)	Shimano Deore XT SS
Fork material	Aluminum
Fork type	Girvin Vector

Other Specs of ProFlex 855

Component group sets	Shimano Deore XT and LX
Pedals details	Onza HO
Rear shock absorber	Not Available
Saddle seat	Vetta SL Manganese Rails
Seat post extension	27.2 (millimeters) Diameter Polygon PM-301