K2 PROFLEX 4000 SE 1998 VS GT FORCE CARBON EXPERT 2009 specs comparison

K2 ProFlex 4000 SE

General Infos

Model	ProFlex 4000 SE
Manufacturer	K2
Year of production	1998
Current price	Check price Here ==>
Color choice	- red -Blue
Sizes	- Large - medium - small - way big
Sizes	- Large - medium - small - way big

Wheels And Breaking System

Bike front tire	26 X 2.10 (inches) Panaracer Duster II 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 LX
Rims manufacturer	32-hole Sun Rims Sub 342
Spoke nipples type	Alloy Nipples
Spoke wheel	1.8 (millimeters) Double-butted DT Stainless Steel

Frame and Body Specs

Frame materials	Double-butted 7000 Aluminum
Frame type	TIG-welded
Handlebar construction	Titec Enduro 141
Handlebar extender	Aluminum
Handlebar stem details	Aluminum
Headset size	1 1/8 (inches) Aheadset

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-UN72
Crankset parts and sizes	22/32/42 Teeth Shimano Deore LX
Gear shift levers	Shimano Deore XT RapidFire SL
Rear gear set	11 - 30 Teeth 8-speed

K2 ProFlex 4000 SE Fork System Data

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

Other Specs of K2 ProFlex 4000 SE

Component group sets	Shimano Deore XT
Pedals details	K2 Mag C
Rear shock absorber	4.0 (inches) Travel K2 Smart Shock
Saddle seat	Selle Royal
Seat post extension	27.2 (millimeters) Diameter Titec PG

GT Force Carbon Expert

General Infos

Model	Force Carbon Expert
Manufacturer	GT
Year of production	2009
Current price	Check price Here ==>
Color choice	-Black and White
Sizes	- Small - Medium - Large - Extra large

Wheels And Breaking System

Bike front tire	Rear: 26 X 2.10 (inches) Kenda Nevegal Front: 26 X 2.30 (inches) Kenda Nevegal
Bike rear tire	Not Available
Bike wheel size	26 (inches) Wheels
Brakeset type	Shimano XT Hydraulic Levers Shimano XT Disc With 180 (millimeters) Rotor Front and Shimano XT Disc With 160 (millimeters) Rotor Rear Brakes
Hubs for disc brakes	15 (millimeters) Thru Axle Rear: Shimano XT Centerlock Disc Front: Shimano XT
Rims manufacturer	Mavic XM-719 Disc
Spoke nipples type	Not Available
Spoke wheel	15ga. DT Swiss Stainless

Frame and Body Specs

Frame materials	Carbon Fiber
Frame type	Monocoque
Handlebar construction	Ritchey Pro Rize OS
Handlebar extender	Optional
Handlebar stem details	Thomson Elite X4
Headset size	1 1/8 (inches) FSA Integrated

Gearing Specifications

Bicycle chain	Shimano HG-73
Bottom bracket shell width	Not Available
Bottom bracket type	Shimano XT Hollowtech II
Crankset parts and sizes	22/32/44 Teeth Shimano XT
Gear shift levers	Shimano XT Rapid Fire
Rear gear set	11 - 34 Teeth 9-speed

GT Force Carbon Expert Fork System Data

Derailleur (Front)	Shimano XT
Derailleur (Rear)	Shimano XT Shadow
Fork material	Single Crown Magnesium and aluminum
Fork type	110 - 150 (millimeters) Adjustable Travel Fox 32 Talas R

Other Specs of GT Force Carbon Expert

Component group sets	Shimano XT
Pedals details	Not Available
Rear shock absorber	Fox Float RP23
Saddle seat	Fi'zi:k Gobi XM With Mg Rails
Seat post extension	Thomson Elite