ProFlex 657 1997 VS Specialized DEMO 7 II 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

Specialized Demo 7 II

General Infos

Model	Demo 7 II
Manufacturer	Specialized
Year of production	2007
Current price	Check price Here ==>
Color choice	-Brown
Sizes	- Large - medium - small

Wheels And Breaking System

Bike front tire	26 X 2.30 (inches) Specialized Chunder
Bike rear tire	Not Available
Bike wheel size	26 (inches) Wheels
Brakeset type	Avid Juicy 7 Levers Avid Juicy 7 With 200 (millimeters) Rotor Brakes
Hubs for disc brakes	Rear: Specialized Bolt-on Front: Specialized Disc 20 (millimeters) Thru Axle
Rims manufacturer	36-hole Specialized EX 5.1d
Spoke nipples type	Not Available
Spoke wheel	14/15ga. Butted DT Swiss Stainless Steel

Frame and Body Specs

Frame materials	Specialized M5 Aluminum
Frame type	TIG-welded
Handlebar construction	Specialized Demo Riser
Handlebar extender	Optional
Handlebar stem details	TruVativ Holzfeller
Headset size	1 1/2 (inches) Threadless 7050 Alloy

Gearing Specifications

Bicycle chain	SRAM PC-951
Bottom bracket shell width	73 (millimeters)
Bottom bracket type	TruVativ Howitzer Team
Crankset parts and sizes	36 Teeth TruVativ Holzfeller
Gear shift levers	SRAM X.9 Trigger
Rear gear set	11 - 34 Teeth 9-speed

Specialized Demo 7 II Fork System Data

Derailleur (Front)	Not Available
Derailleur (Rear)	SRAM X.9
Fork material	Single Crown Magnesium and aluminum
Fork type	180 (millimeters) RockShox Totem Air

Other Specs of Specialized Demo 7 II

Component group sets	SRAM X.9/mix
Pedals details	Specialized Lo-Pro Mag
Rear shock absorber	7 (inches) Fox DHX 5.0
Saddle seat	Specialized Enduro
Seat post extension	30.9 (millimeters) Diameter Thomson SPE127/8