ProFlex 657 1997 VS GT MARATHON SPORT 2009 specs comparison

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)
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

GT Marathon Sport

General Infos

Model	Marathon Sport
Manufacturer	GT
Year of production	2009
Current price	Check price Here ==>
Color choice	-Dark Silver
Sizes	- Xsmall - small - medium - large - xlarge

Wheels And Breaking System

Bike front tire	26 X 2.10 (inches) Kenda Nevegal
Bike rear tire	Not Available
Bike wheel size	26 (inches) Wheels
Brakeset type	Tektro Auriga Comp Hydraulic Levers Tektro Auriga Comp With 160 (millimeters) Rotor Brakes
Hubs for disc brakes	Shimano Disc
Rims manufacturer	WTB SX24
Spoke nipples type	Not Available
Spoke wheel	14ga. Stainless

Frame and Body Specs

Frame materials	GT I-Drive 4 6061 Aluminum
Frame type	TIG-welded
Handlebar construction	GT OE Riser 31.8 (millimeters)
Handlebar extender	Optional
Handlebar stem details	GT ATB
Headset size	1 1/8 (inches) FSA Integrated

Gearing Specifications

Bicycle chain	Shimano Nine Speed
Bottom bracket shell width	Not Available
Bottom bracket type	Shimano Octalink
Crankset parts and sizes	22/32/44 Teeth Shimano
Gear shift levers	Shimano
Rear gear set	11 - 32 Teeth 9-speed

GT Marathon Sport Fork System Data

Derailleur (Front)	Shimano Deore
Derailleur (Rear)	Shimano Deore
Fork material	Single Crown Magnesium and aluminum
Fork type	120 (millimeters) Travel SR Suntour Mag-32

Other Specs of GT Marathon Sport

Component group sets	Shimano Deore and mix
Pedals details	Shimano PD-M520
Rear shock absorber	4 (inches) Travel Fox Float R
Saddle seat	WTB Speed V
Seat post extension	Alloy Micro Adjust