ProFlex 857 1997 VS K2 RAZORBACK 4.0 2001 specs comparison

ProFlex 857

General Infos

Model	857
Manufacturer	ProFlex
Year of production	1997
Current price	Check price Here ==>
Color choice	- red -Fuzzy Grape
Sizes	- Small - Medium - Large - Extra large
Sizes	- Small - Medium - Large - Extra large

Wheels And Breaking System

Bike front tire	26 X 1.95 (inches) Panaracer Duster Pro Kevlar
Bike rear tire	Not Available
Bike wheel size	26 (inches) Wheels
Brakeset type	Shimano Deore XT Levers Shimano Deore XT V-Brake Brakes
Hubs for disc brakes	Shimano Deore XT
Rims manufacturer	32-hole Mavic 220S
Spoke nipples type	Alloy Nipples
Spoke wheel	1.8 (millimeters) Double Butted DT Competition Stainless Steel

Frame and Body Specs

Frame materials	Easton ProGram Elite Double-butted With Carbon Fiber Swingarm
Frame type	TIG-welded
Handlebar construction	Titec Enduro
Handlebar extender	Girvin Team Issue
Handlebar stem details	Girvin Reversible Forged
Headset size	1 1/8 (inches) Threadless Dia-Compe Kontak Aheadset AL-2

Gearing Specifications

Bicycle chain	1/2 X 3/32 (inches) Sachs SC-40
Bottom bracket shell width	68 (millimeters) English
Bottom bracket type	110 (millimeters) Spindle Shimano BB-UN52
Crankset parts and sizes	22/32/42 Teeth Shimano Deore XT
Gear shift levers	Shimano Deore XT RapidFire SL
Rear gear set	11 - 30 Teeth 8-speed

ProFlex 857 Fork System Data

Derailleur (Front)	Bottom-pull and clamp-on 31.8 (millimeters) Shimano Deore XT Top-swing
Derailleur (Rear)	Shimano Deore XT SGS
Fork material	Girvin Linkage Crown Aluminum
Fork type	Girvin Cross-Link Elite With Noleen NR-2

Other Specs of ProFlex 857

Component group sets	Shimano Deore XT
Pedals details	Proflex Mag-C
Rear shock absorber	4.0 (inches) Travel Noleen NR-2
Saddle seat	Selle San Marco Tecno Dynamica
Seat post extension	27.2 (millimeters) Diameter Polygon PM-747

K2 Razorback 4.0

General Infos

Model	Razorback 4.0
Manufacturer	K2
Year of production	2001
Current price	Check price Here ==>
Color choice	-White and Blue two-toned
Sizes	- Large - medium - small - way big

Wheels And Breaking System

Bike front tire	Rear: 26 X 2.00 (inches) WTB NanoRaptor DNA Front: 26 X 2.10 (inches) WTB NanoRaptor DNA
Bike rear tire	Not Available
Bike wheel size	26 (inches) Wheels
Brakeset type	Avid Speed Dial 5 Levers Avid Single Digit 7 Brakes
Hubs for disc brakes	WTB SpeedDisc XC
Rims manufacturer	32-hole WTB SpeedMaster
Spoke nipples type	Not Available
Spoke wheel	15/15g WTB Stainless Steel

Frame and Body Specs

Frame materials	Easton Ultralite
Frame type	TIG-welded
Handlebar construction	Titec Enduro XC
Handlebar extender	Optional
Handlebar stem details	Titec Big AL
Headset size	WTB Momentum Comp ST

Gearing Specifications

Bicycle chain	1/2 X 3/32 (inches) KMC Z9000
Bottom bracket shell width	Not Available
Bottom bracket type	TruVativ Sealex Splined
Crankset parts and sizes	TruVativ Stylo A3
Gear shift levers	Shimano Deore LX RapidFire SL
Rear gear set	11 - 32 Teeth 9-speed

K2 Razorback 4.0 Fork System Data

Derailleur (Front)	Shimano Deore LX
Derailleur (Rear)	Shimano XT
Fork material	Triple-clamp
Fork type	3.15 (inches) Travel Noleen Mega Air

Other Specs of K2 Razorback 4.0

Component group sets	Mountain Mix
Pedals details	Wellgo M9 Clipless
Rear shock absorber	3.0 (inches) Travel Noleen Mega Air Pull-Shock
Saddle seat	WTB TriLite Cromoly
Seat post extension	Titec X-Wing Lite