K2 BUMPY MONKEY 2002 VS ProFlex 657 1997 specs comparison

K2 Bumpy Monkey

General Infos

Model	Bumpy Monkey
Manufacturer	K2
Year of production	2002
Current price	Check price Here ==>
Color choice	-Dark Matte Blue and White
Sizes	- Large - medium - small
Sizes	- Large - medium - small

Wheels And Breaking System

Bike front tire	26 X 2.25 (inches) Geax Blade
Bike rear tire	Not Available
Bike wheel size	26 (inches) Wheels
Brakeset type	Avid Speed Dial 5 Levers Avid Mechanical Disc Brakes
Hubs for disc brakes	WTB SpeedDisc XC
Rims manufacturer	32-hole WTB Dual Duty
Spoke nipples type	Brass Nipples
Spoke wheel	14ga. Straight Gauge WTB Stainless Steel

Frame and Body Specs

Frame materials	7005 aluminum c
Frame type	TIG-welded
Handlebar construction	1.25 (inches) Rise Aluminum
Handlebar extender	Optional
Handlebar stem details	K2 Alloy 4-bolt
Headset size	1 1/8 (inches) Threadless Cane Creek Dozer

Gearing Specifications

Bicycle chain	1/2 X 3/32 (inches) Shimano CN-HG53
Bottom bracket shell width	68 (millimeters) English
Bottom bracket type	Alloy Cups Sealed Cartridge
Crankset parts and sizes	22/32/42 Teeth Shimano FC-M440
Gear shift levers	Shimano Deore RapidFire SL
Rear gear set	11 - 32 Teeth 9-speed

K2 Bumpy Monkey Fork System Data

Derailleur (Front)	Bottom Bracket Mount Shimano Deore LX Top-swing
Derailleur (Rear)	Shimano Deore
Fork material	Single Triple-clamp Crown Aluminum
Fork type	3.15 (inches)-4.00 (inches) Adjustable Travel Answer Manitou Black Comp 8100

Other Specs of K2 Bumpy Monkey

Component group sets	Mountain Mix
Pedals details	Chromoly Axle K2 Alloy
Rear shock absorber	3.5 (inches) Travel Noleen NR-2
Saddle seat	K2 Grab Bag
Seat post extension	27.2 (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