VelopediaBicycle Archive · Specification report

1998 K2 ProFlex 2000

Velopedia Archive ID 70139

Overview

Model year1998
BrandK2
ModelProFlex 2000
Bicycle typeMountain bike, front & rear suspension
Archive ID70139
Original MSRP$1,299.99
ColorsCopper, grey
SizesLarge, medium, small, way big

Frameset

Frame constructionTIG-welded
Frame materialEaston ProGram Elite double-butted
ForkNoleen Cross-Link EXP w/NR-1
Fork material6061-T6 aluminum, linkage crown
Rear shockNoleen NR-1, 3.5" travel

Drivetrain

Component groupShimano STX-RC
ShiftersShimano STX-RC RapidFire SL
Front derailleurShimano STX-RC top-swing, bottom-pull/clamp-on 31.8mm
Rear derailleurShimano Deore LX SGS
CranksetShimano STX-RC, 22/32/42 teeth
Bottom bracketShimano BB-LP26, 113mm spindle
BB shell width73mm English
Rear cogs8-speed, 11 - 30 teeth
ChainSachs PC-51, 1/2 x 3/32"
PedalsK2 Mag C

Brakes

BrakesShimano STX-RC V-Brake brakes, Shimano STX-RC levers

Cockpit & contact points

Headset1 1/8" threadless Aheadset Kontak AL-2
HandlebarTitec Enduro
Handlebar extensionsPolygon
StemAluminum
SaddleSelle Royal
SeatpostPolygon PM-312, 27.2mm diameter

Wheels & tires

HubsFront: Shimano STX, Rear: Shimano STX-RC
RimsSun Rims CR18, 32-hole
SpokesChung Nan stainless steel, 1.8mm straight gauge
Spoke nipplesBrass nipples
Front tireFront: 26 x 2.10" Panaracer Duster II, Rear: 26 x 1.95" Panaracer Duster II
Wheel size26" wheels

Geometry · Legacy reference

Top tube587 mm
Head-tube angle71.4°
Seat-tube angle74.4°
Chainstay / rear center432 mm
Wheelbase1085 mm
Fork offset / rake44 mm

Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on September 29, 2026.