The Stella Steel 29er is equally at home racing your local singletrack or decked out with bikepacking gear. The Stella is designed to be extremely compatible with a wide range of tire sizes, hub options and fork lengths. The Stella Steel and Titanium are proven race winners at marathon, XC and Ultra-race events. Stella Steel’s are now available in either 148x12 Boost or 142x12/135xQR hub spacings! 


Ride Quality

  • A balanced BB drop: Positioned to bring out the rest of the geometry and give clearance to pedal through technical rock gardens, climb with power and stay playful on the trail.

  • Supple where is counts: S-Bend seatstays, sloping top tube and bent down tube. These choices help the bike track in the rough and dampen trail vibrations.

  • Stiff chainstays and strong CHUMBA Oversized Select Double Butted Tubing throughout yield large tube miters for strength and a low frame weight of only 5 lbs.

Build Quality

  • Made in house/USA quality

  • Flawless frame miters, all tubes are heat sunk and argon purged when welded to prevent distortion and material thinning.

  • CHUMBA Oversized Select Double Butted Tubing and PMW stainless steel sliding dropouts, mean this bike will exceed your expectations and provide years of reliable trail service.

  • Clean thoughtful cable routing

from 1,350.00

Stella Steel Frame or Build

Frame only/ Build/ or Custom Component Frame Reservation?:
Custom Color Lvl:
Add to Build
Stella Steel Wheel Upgrade Options

If you are ordering Build kit 1, 2, or 3 please select your preferred wheelset.

Add to Build

Add custom braze ons and more

Add to Build
Chumba Stella Steel Boost2.jpg

Stella Frame Specs

  • Hub Spacing: 148x12 Boost or 142x12/135x10 on request

  • PMW Sliding Dropout options: Geared, single speed or Rohloff, Thru axle or Geared

  • Max Tire Clearances: 29 x 2.6" tires or 27plus x 2.8"

  • Headset SHIS: ZS44 Upper/ EC44 Lower for Tapered or Straight

  • Fork Travel: 120mm/100mm/or rigid options

  • Seatpost: Post 31.6mm / Clamp 35mm

  • Bottom Bracket: 73 English Threaded BSA

  • Chainring Clearance: 1x up to a 36T and 2x compatible

  • H20 Capacity: 3 bottles on Sizes XL, L, & M. 2 bottles on S, XS

The Stella Steel 29er is available as a frame only, frame set, complete build kits, partial builds and full custom component configurations can be quoted on request. Orders are shipped Boost 148x12 unless requested otherwise.

You can order a Stella direct from Chumba over the website, phone, in person @ our Headquarters or from an approved Chumba Dealer. We welcome calls (512) 494-4944 and emails for immediate questions.