Chumba EVO

Here’s my CHUMBA EVO. This bike will be replacing my Specialized Enduro Comp as my all-mountain trail bike (or whatever marketing term they use these days).

New:
Chumba EVO Change/Repair Log
Chumba EVO Setup

Update! 8/8/07 I changed the front triangle to a S/M size with the newer AM geometry.

CHUMBA Racing is a local frame builder here in Orange County, CA. The welds and CNC work are like works of art. And the bikes ride as well as they look.

Here’s how the build looks so far. There’s so many parts laying around, my house is starting to look like a small bike shop.

Frame - Chumba Racing EVO
Fork - 2006 Marzocchi All-Mountain 1

Headset - Chris King 1 1/8″ NoThreadSet
Stem - Thomson X4
Handlebars - WTB TXC O/S
Grips - ODI Ruffian Lock-ons

Seatpost - Thomson Elite 31.6mm x 367mm
Saddle - WTB Rocket V Race
Seatpost Collar - DKP QR 38.1mm

Brakes - Magura Louise FR

Crankset - Shimano XT M760 22-32-44 175mm
Shifters - Shimano XT SL M951
Front Derailleur - Shimano XTR E-Type
Rear Derailleur - Shimano XT M752 (Non-Rapid Rise!)
Cassette - Shimano XT M760 11-34T
Chain - Shimano Dura-Ace/XTR CN7701

Wheelset - Front - DT Swiss EX5.1/Hope Pro II Rear - DT Swiss XR4.1 rims/Hadley 135mm
Tires - Maxxis Ignitor 2.35 UST with DT Swiss Tubeless Conversion Kit (F & R)
Skewers - Hope Stainless Steel QR

I’ll be doing most of the work myself using Zinn and the Art of Mountain Bike Maintenance as reference.