Ritchey Ultra 29″ Mountain Frame 50th Anniversary


SKU: N/A Categories: , Tags: ,
Share:[supsystic-social-sharing id="2"]


The latest mountain bike frame, from one who started it all, Tom Ritchey.  If there’s one thing Tom knows, it’s dirt. When he first designed the Ultra he knew it would appeal to riders who demand specific ride characteristics and dirt slaying – and that was in the 1980s!

Good design withstands the test of time, and the latest iteration of the Ultra is a prime example. Like its predecessor from 30 years prior, the new Ultra occupies a unique ride space from cross-country riders to enduro riders.


  • Designed around a 120mm travel or a rigid fork and super stable Boost 148 spacing, most of the fun is in the wheels.
  • Designed to accommodate 29″ or 27.5″ wheels, the Ultra is highly versatile. Throw on some 29s for some trail-smashing XC riding, or saddle up some 27.5+ for some serious no-holds-barred shredding.
  • The Ultra is a rough and rugged trail master that doesn’t know when to quit. Features Compatible with 27.5 x 2.8 and 29 x 2.4 tires Internal routing for a dropper post Boost 148×12 rear spacing

Technical Specifications

  • Material: heat-treated, triple-butted Ritchey Logic steel tubing – TIG welded
  • Ultra-light forged and machined tapered head tube
  • Optimized for 120mm (BOOST) suspension travel fork or 500mm axle-crown rigid fork (Fork NOT included)
  • Headset: integrated – 1.5” tapered
  • Headset upper bearing: 41.8mm OD / IS42/28.6 (S.H.I.S.)
  • Headset lower bearing: 52mm OD / IS52/40 (S.H.I.S.)
  • BOOST 148mm spacing (12mm alloy thru-axle included)
  • External cable routing Replaceable stainless-steel derailleur hanger 30.9mm seat tube with stealth dropper post internal routing and replaceable seat collar
  • Front derailleur clamp size: 34.9mm (max torque setting: 2.5Nm) – not included
  • Bottom bracket: 73mm – English threaded
  • Designed for 1X or 2X chainrings (Side Swing front derailleur required for double)
  • BOOST cranks must be used for proper 52mm chainline
  • Crankset maximum ring size: 38T single – 26/36T double
  • Recommended tire size: 27.5×2.4 (2.8 max) or 29×2.25 (2.4 max) – tire size varies by rim and tire manufacturer
  • Post-mount rear brake: 160mm (180mm max – adaptors available separately)
  • Sizes: S (15″) / M (17″) / L (19″) / XL (20.5″) Weight: 2.57kg (L/19″)
  • Colour: 50th Anniversary Fade
  • Optimized for 120mm (BOOST) suspension travel fork or 500mm axle-crown rigid fork
  • Replaceable stainless-steel derailleur hanger

Please contact us for a full build estimate [email protected]


Additional information


Small, Medium, Large, X-Large




There are no reviews yet.

Be the first to review “Ritchey Ultra 29″ Mountain Frame 50th Anniversary”

Your email address will not be published. Required fields are marked *