K2 PROFLEX BEAST 1998 VS Rocky Mountain ALTITUDE 90 RSL 2009 specs comparison

K2 ProFlex Beast

General Infos

Model	ProFlex Beast
Manufacturer	K2
Year of production	1998
Current price	Check price Here ==>
Color choice	- purple and yellow -Black with red vertebrae
Sizes	- Large - medium - small - way big
Sizes	- Large - medium - small - way big

Wheels And Breaking System

Bike front tire	Rear: 26 X 2.10 (inches) Panaracer Smoke Kevlar Front: 26 X 2.10 (inches) Panaracer Dart Kevlar
Bike rear tire	Not Available
Bike wheel size	26 (inches) Wheels
Brakeset type	Shimano Deore LX Levers Shimano Deore LX V-Brake Brakes
Hubs for disc brakes	Shimano Deore LX
Rims manufacturer	36-hole Sun Rims XC
Spoke nipples type	Brass Nipples
Spoke wheel	1.8 (millimeters) Straight Gauge DT Stainless Steel

Frame and Body Specs

Frame materials	Double-butted 7005 Aluminum
Frame type	TIG-welded
Handlebar construction	Titec Enduro Hell Bent
Handlebar extender	Optional
Handlebar stem details	Aluminum
Headset size	1 1/8 (inches) Threadless Aheadset Kontak AL-2

Gearing Specifications

Bicycle chain	1/2 X 3/32 (inches) Sachs PC-51
Bottom bracket shell width	73 (millimeters) English
Bottom bracket type	113 (millimeters) Spindle Shimano BB-UN52
Crankset parts and sizes	22/32/42 Teeth Shimano Deore LX
Gear shift levers	Shimano Deore LX RapidFire SL
Rear gear set	11 - 30 Teeth 8-speed

K2 ProFlex Beast Fork System Data

Derailleur (Front)	Bottom-pull and clamp-on 31.8 (millimeters) Shimano Deore LX Top-swing
Derailleur (Rear)	Shimano Deore XT SGS
Fork material	Double Triple-clamp Crown Aluminum and magnesium
Fork type	K2 Bikes Proflex Girvin Noleen Pipeline Chubby LT

Other Specs of K2 ProFlex Beast

Component group sets	Shimano Deore LX
Pedals details	K2 Mag C
Rear shock absorber	5.0 (inches) Travel Noleen NR-2
Saddle seat	Selle Royal
Seat post extension	27.2 (millimeters) Diameter Polygon PM-312

Rocky Mountain Altitude 90 RSL

General Infos

Model	Altitude 90 RSL
Manufacturer	Rocky Mountain
Year of production	2009
Current price	Check price Here ==>
Color choice	-Carbon
Sizes	- 15 (inches) - 16.5 (inches) - 18 (inches) - 19.5 (inches) - 20.5 (inches)

Wheels And Breaking System

Bike front tire	26 (inches) Hutchinson Python
Bike rear tire	Not Available
Bike wheel size	26 (inches) Wheels
Brakeset type	Formula R1 Hydraulic Levers Formula R1 Disc Brakes
Hubs for disc brakes	Rear: Mavic CrossMax SLR Disc Front: Mavic CrossMax SLR Disc 15 (millimeters) Axle
Rims manufacturer	Mavic CrossMax SLR Disc
Spoke nipples type	Not Available
Spoke wheel	Mavic CrossMax SLR

Frame and Body Specs

Frame materials	RMB FORM Carbon With Aluminum Chainstay
Frame type	Monocoque
Handlebar construction	Race Face Next Low Riser
Handlebar extender	Optional
Handlebar stem details	Race Face Deus SL XC Ti Bolts
Headset size	1 1/8 (inches) FSA Orbit CS

Gearing Specifications

Bicycle chain	Shimano XTR
Bottom bracket shell width	Not Available
Bottom bracket type	Race Face Next X-Type
Crankset parts and sizes	22/32/44 Teeth Race Face NEXT Carbon
Gear shift levers	Shimano XTR Rapid Fire
Rear gear set	11 - 34 Teeth 9-speed

Rocky Mountain Altitude 90 RSL Fork System Data

Derailleur (Front)	DMD Shimano XT
Derailleur (Rear)	Shimano XTR Shadow
Fork material	Single Crown Magnesium and aluminum
Fork type	140 (millimeters) Travel Fox 32 Float RLC

Other Specs of Rocky Mountain Altitude 90 RSL

Component group sets	Shimano XTR
Pedals details	Crank Brothers Candy
Rear shock absorber	140 (millimeters) Travel Fox Float RP23
Saddle seat	Fi'zi:k Gobi
Seat post extension	30.9 (millimeters) Diameter Race Face Next SL