Bicycle Archive · Specification report

2003 K2 Razorback 4.0

Velopedia Archive ID 38724

Overview

Model year	2003
Brand	K2
Model	Razorback 4.0
Bicycle type	Mountain bike, front & rear suspension
Archive ID	38724
Original MSRP	$1,900.00
Colors	Brushed Alloy/Red
Sizes	Large, medium, small, way big

Frameset

Frame construction	TIG-welded
Frame material	7005 aluminum, double-butted
Fork	Rock Shox Sid Race, 80mm travel
Fork material	Aluminum/magnesium, single crown
Rear shock	Fox Vanilla RL

Drivetrain

Component group	Mountain Mix
Shifters	Shimano Deore LX
Front derailleur	Shimano Deore LX
Rear derailleur	Shimano Deore XT
Crankset	Race Face Prodigy ISIS, 22/32/44 teeth
Bottom bracket	TruVativ ISIS Drive
BB shell width	68mm English
Rear cogs	9-speed, 11 - 32 teeth
Chain	Shimano CN-HG53, 1/2 x 3/32"
Pedals	Time ATAC Alium

Brakes

Brakes	Avid Single Digit 7 brakes, Avid Speed Dial 7 levers

Cockpit & contact points

Headset	1 1/8" threadless Cane Creek IS-2 integrated
Handlebar	Race Face Prodigy XC
Handlebar extensions	Not included
Stem	Race Face Prodigy
Saddle	WTB Rocket V
Seatpost	Race Face Evolve XC, 31.6mm diameter

Wheels & tires

Hubs	Sealed mechanism
Rims	Ritchey Girder Pro, 32-hole
Spokes	Dt
Front tire	26 x 2.10" WTB Weirwolf
Wheel size	26" wheels

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