Klein MANTRA 1998 VS ProFlex 657 1997 specs comparison

Klein Mantra

General Infos

Model	Mantra
Manufacturer	Klein
Year of production	1998
Current price	Check price Here ==>
Color choice	-Black with black swingarm
Sizes	- Large - medium - small
Sizes	- Large - medium - small

Wheels And Breaking System

Bike front tire	Rear: 26 X 46/50 (inches) Bontrager Jones Front: 26 X 2.10 (inches) Bontrager Jones
Bike rear tire	Not Available
Bike wheel size	26 (inches) Wheels
Brakeset type	Avid AD-1.0 L Levers Avid 1D-10 Brakes
Hubs for disc brakes	Shimano STX-RC
Rims manufacturer	32-hole Rear: Bontrager Maverick Asym Front: Bontrager Maverick
Spoke nipples type	Brass Nipples
Spoke wheel	2.0 (millimeters) Straight Gauge DT Stainless Steel

Frame and Body Specs

Frame materials	Klein Gradient Aluminum
Frame type	TIG-welded
Handlebar construction	System 2
Handlebar extender	Optional
Handlebar stem details	Aluminum
Headset size	1 1/8 (inches) Threadless Aheadset Kontak SA

Gearing Specifications

Bicycle chain	1/2 X 3/32 (inches) Sachs PC-41
Bottom bracket shell width	73 (millimeters) English
Bottom bracket type	113 (millimeters) Spindle Shimano BB-UN52
Crankset parts and sizes	20/32/42 Teeth Sugino Mighty 350
Gear shift levers	Shimano STX-RC RapidFire SL
Rear gear set	11 - 30 Teeth 8-speed

Klein Mantra Fork System Data

Derailleur (Front)	Top-pull Shimano STX-RC Top-swing
Derailleur (Rear)	Shimano STX-RC
Fork material	Triple-clamp Crown Aluminum and magnesium
Fork type	Answer Manitou Spyder R

Other Specs of Klein Mantra

Component group sets	Mountain Mix
Pedals details	ICON Clipless
Rear shock absorber	5.5 (inches) Travel Fox Vanilla X
Saddle seat	Bontrager FS Plus 10
Seat post extension	31.6 (millimeters) Diameter Aluminum Micro-adjust

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