K2 PROFLEX 5000C 1998 VS ProFlex 657 1997 specs comparison

K2 ProFlex 5000C

General Infos

Model	ProFlex 5000C
Manufacturer	K2
Year of production	1998
Current price	Check price Here ==>
Color choice	-Natural carbon
Sizes	- Large - medium - way big
Sizes	- Large - medium - way big

Wheels And Breaking System

Bike front tire	Rear: 26 X 2.10 (inches) Panaracer Mach SK Front: 26 X 2.10 (inches) Panaracer Mach SS
Bike rear tire	Not Available
Bike wheel size	26 (inches) Wheels
Brakeset type	Shimano XTR Levers Shimano XTR V-Brake Brakes
Hubs for disc brakes	Shimano XTR
Rims manufacturer	32-hole Sun Rims Sub 432
Spoke nipples type	Alloy Nipples
Spoke wheel	2.0 (millimeters) Double-butted DT Stainless Steel

Frame and Body Specs

Frame materials	Carbon-reinforced Thermoplastic
Frame type	Laminated Carbon Fiber
Handlebar construction	Syncros Hardcore
Handlebar extender	Polygon
Handlebar stem details	Syncros Hardcore
Headset size	1 1/8 (inches) Syncros

Gearing Specifications

Bicycle chain	1/2 X 3/32 (inches) Sachs PC-51
Bottom bracket shell width	73 (millimeters) English
Bottom bracket type	113 (millimeters) Spindle Shimano BB-M950
Crankset parts and sizes	24/34/46 Teeth Shimano XTR M950
Gear shift levers	Shimano XTR RapidFire SL
Rear gear set	12 - 32 Teeth 8-speed

K2 ProFlex 5000C Fork System Data

Derailleur (Front)	Bottom-pull and clamp-on 31.8 (millimeters) Shimano XTR Top-swing
Derailleur (Rear)	Shimano XTR SGS
Fork material	Linkage Crown Carbon Fiber Composite
Fork type	Noleen Cross-Link CS

Other Specs of K2 ProFlex 5000C

Component group sets	Shimano XTR
Pedals details	K2 Mag T
Rear shock absorber	4.0 (inches) Travel K2 Smart Shock
Saddle seat	Selle Royal
Seat post extension	27.2 (millimeters) Diameter Syncros Hardcore Aluminum

ProFlex 657

General Infos

Model	657
Manufacturer	ProFlex
Year of production	1997
Current price	Check price Here ==>
Color choice	-Matte titanium
Sizes	- 14 (inches) - 16 (inches) - 18 (inches) - 20 (inches)

Wheels And Breaking System

Bike front tire	26 X 2.10 (inches) Panaracer Duster II
Bike rear tire	Not Available
Bike wheel size	26 (inches) Wheels
Brakeset type	Chang Star 274A Levers Chang Star 879AG Brakes
Hubs for disc brakes	Rear: Shimano STX-RC Front: Shimano STX
Rims manufacturer	32-hole Mavic 238
Spoke nipples type	Brass Nipples
Spoke wheel	1.8 (millimeters) Straight Gauge Chung Nan Stainless Steel

Frame and Body Specs

Frame materials	Butted 7000 Aluminum
Frame type	TIG-welded
Handlebar construction	Aluminum
Handlebar extender	Girvin Team Issue
Handlebar stem details	Girvin Forged
Headset size	1 1/8 (inches) Threadless Dia-Compe Kontak Aheadset ST-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-LP26
Crankset parts and sizes	22/32/42 Teeth Shimano STX-RC
Gear shift levers	Shimano STX-RC RapidFire SL
Rear gear set	11 - 28 Teeth 8-speed

ProFlex 657 Fork System Data

Derailleur (Front)	Bottom-pull and clamp-on 31.8 (millimeters) Shimano STX-RC Top-swing
Derailleur (Rear)	Shimano Deore LX SGS
Fork material	Girvin Linkage Crown Aluminum
Fork type	Girvin AL With ODS Coil Over Oil

Other Specs of ProFlex 657

Component group sets	Shimano Deore LX and STX-RC
Pedals details	Wellgo LU-946S
Rear shock absorber	3.5 (inches) Travel Girvin GDT Coil Over Oil
Saddle seat	Selle San Marco Tecno Dynamica
Seat post extension	27.2 (millimeters) Diameter Polygon PM-312