Ritchey Ultra Steel Frame - Sierra Slate
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 only he could deliver- 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 looking to get rowdy and go big to enduro riders lusting for some all-mountain shredding.
Designed around a 120mm travel 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.
Material: Ritchey Logic Tubing
Optimized for 120mm suspension travel
Sizes: S (15"), M (17"), L (19"), XL (20.5")
Ultra-light Forged and machined tapered head tube
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.)
Fits up to 27.5”x2.8” or 29”x2.4” tires
148 x 12mm rear end with replaceable stainless steel derailleur hanger
30.9mm seat tube with stealth dropper routing
Designed to accommodate 1X or 2X chainrings
For 2X chainrings: Use front derailleur with housing stopper (e.g. Shimano XT FD-M8020-H)
Front derailleur clamp: 34.9mm
Bottom Bracket: 73mm English threaded
BOOST cranks must be used for proper chanline (SRAM XX1 BOOST 38t or Shimano FC-M8000-B2 36/26t recommended)
Color: Sierra Slate
Mfr Claimed Weight
NOTE: Sold as a frame only (frame + headset + axles)
Not sure which is the correct size for you? Need help planning your build? Contact us at email@example.com for an obligation free consultation - we love talking bikes and are always happy to help.