K2 PROFLEX BEAST 1998 VS AMP Research B4 F4BLT 1998 specs comparison

K2 ProFlex Beast 1998 comparison online with competitors

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 tireNot Available
Bike wheel size26 (inches) Wheels
Brakeset type Shimano Deore LX Levers
Shimano Deore LX V-Brake Brakes
Hubs for disc brakesShimano Deore LX
Rims manufacturer 36-hole
Sun Rims XC
Spoke nipples typeBrass Nipples
Spoke wheel 1.8 (millimeters) Straight Gauge
DT Stainless Steel

Frame and Body Specs

Frame materials Double-butted
7005 Aluminum
Frame typeTIG-welded
Handlebar constructionTitec Enduro Hell Bent
Handlebar extenderOptional
Handlebar stem detailsAluminum
Headset size1 1/8 (inches) Threadless Aheadset Kontak AL-2

Gearing Specifications

Bicycle chain 1/2 X 3/32 (inches)
Sachs PC-51
Bottom bracket shell width73 (millimeters) English
Bottom bracket type 113 (millimeters) Spindle
Shimano BB-UN52
Crankset parts and sizes 22/32/42 Teeth
Shimano Deore LX
Gear shift leversShimano 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 typeK2 Bikes Proflex Girvin Noleen Pipeline Chubby LT

Other Specs of K2 ProFlex Beast

Component group setsShimano Deore LX
Pedals detailsK2 Mag C
Rear shock absorber 5.0 (inches) Travel
Noleen NR-2
Saddle seatSelle Royal
Seat post extension 27.2 (millimeters) Diameter
Polygon PM-312


AMP Research B4 F4BLT 1998 comparison online with competitors

AMP Research B4 F4BLT

General Infos
Model B4 F4BLT
Manufacturer AMP Research
Year of production 1998
Current price Check price Here ==>   
Color choice - Candy Apple Red
-Ball-Burnished
Sizes - Large
- medium
- small
- xsmall

Wheels And Breaking System

Bike front tireOptional
Bike rear tireNot Available
Bike wheel sizeOptional Wheels
Brakeset type Shimano Deore XT Levers
AMP D1 Hydraulic Disc Brake System Brakes
Hubs for disc brakes Rear: Shimano Deore XT
Front: AMP Research
Rims manufacturerMavic 238
Spoke nipples typeNot Available
Spoke wheelNot Available

Frame and Body Specs

Frame materialsAlcoa Alcalyte 6013 T6 Aluminum
Frame typeTIG-welded
Handlebar constructionControl Tech Aluminum
Handlebar extenderOptional
Handlebar stem detailsControl Tech
Headset size1 1/8 (inches) Threadless Aheadset

Gearing Specifications

Bicycle chain 1/2 X 3/32 (inches)
Shimano CN-IG70
Bottom bracket shell widthNot Available
Bottom bracket typeShimano BB-UN72
Crankset parts and sizes 22/32/42 Teeth
Shimano Deore XT
Gear shift leversShimano Deore XT RapidFire SL
Rear gear set 11 - 28 Teeth
8-speed

AMP Research B4 F4BLT Fork System Data

Derailleur (Front) Top-pull
Shimano Deore XT
Derailleur (Rear)Shimano Deore XT
Fork material Linkage Crown
Alcoa Alcalyte 6013 T6 Aluminum
Fork typeAMP Research F4BLT

Other Specs of AMP Research B4 F4BLT

Component group setsShimano Deore XT
Pedals detailsOptional
Rear shock absorber 3.0 (inches) Travel
AMP Research
Saddle seatVetta TT
Seat post extension 31.6 (millimeters) Diameter
Control Tech Or Thomson


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