ProFlex 657 1997 VS GT IT-1 2007 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 IT-1

General Infos

Model	IT-1
Manufacturer	GT
Year of production	2007
Current price	Check price Here ==>
Color choice	-Matte Navy Blue
Sizes	- Small - medium - large

Wheels And Breaking System

Bike front tire	26 X 2.50 (inches) Kenda Nevegal DH Stick-E
Bike rear tire	Not Available
Bike wheel size	26 (inches) Wheels
Brakeset type	Avid Juicy Code Levers Avid Juicy Code With 8 (inches) Rotor Brakes
Hubs for disc brakes	20 (millimeters) Axle Rear: GT IT1 Design Sealed Bearing Front: 20 (millimeters) Thru Axle Disc
Rims manufacturer	Sun MTX
Spoke nipples type	DT Aluminum
Spoke wheel	14/15ga. DT Swiss

Frame and Body Specs

Frame materials	GT IT-1 6061-T6 Aluminum
Frame type	TIG-welded
Handlebar construction	Easton EA70 Monkey Bar
Handlebar extender	Optional
Handlebar stem details	Marzocchi Integrated
Headset size	6061 Cups FSA Orbit MX

Gearing Specifications

Bicycle chain	Shimano
Bottom bracket shell width	Not Available
Bottom bracket type	Shimano Saint
Crankset parts and sizes	Shimano Saint
Gear shift levers	Shimano Alfine Rapidfire Plus
Rear gear set	8-speed Internal

GT IT-1 Fork System Data

Derailleur (Front)	Not Available
Derailleur (Rear)	Shimano Nexus 8 Speed Internal
Fork material	Dual Crown Aluminum and magnesium
Fork type	170 - 203 (millimeters) Adjustable Travel Marzocchi 888 SL ATA

Other Specs of GT IT-1

Component group sets	Mountain Mix
Pedals details	Crank Bros. 50/50
Rear shock absorber	9 (inches) Travel Marzocchi ROCO RC World Cup
Saddle seat	SDG Bel Air ST I-Beam
Seat post extension	2014 Aluminum SDG I-Beam