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Bicycles > Mountain > Framesets

Description

Steel hardtails occupy a specific position in mountain biking that carbon and aluminum alternatives simply cannot replicate. The Ritchey Ultra Frameset represents decades of tube selection and geometry refinement from a brand that helped define what mountain bikes could be, delivered in a package that prioritizes trail feel and longevity over spec sheet metrics. This is a frame for riders who understand that the best bike is often the one you want to keep riding for years, not the one that looks fastest on paper.

Ritchey builds the Ultra around their Logic II triple-butted steel tubing, a material choice that delivers compliance characteristics no other frame material matches. The butted construction removes material where it isn't needed while maintaining strength at the joints, resulting in a frame that absorbs trail chatter without feeling sluggish under power. Steel's natural damping properties shine on extended rides where accumulated vibration fatigue becomes a real factor in how you feel at mile forty versus mile four.

The geometry reflects modern trail expectations while honoring hardtail handling traditions. A 67-degree head tube angle provides stability on descents without making the bike feel like it's fighting you on climbs or tight switchbacks. The 74-degree effective seat tube angle positions you efficiently over the pedals, and the 435mm chainstays balance climbing traction with playful handling characteristics. Ritchey offers the Ultra in four sizes spanning riders from approximately 5'3" to well over 6', each with proportionally adjusted reach and stack figures.... Read More

Features

  • Logic II triple-butted steel frame construction
  • 67-degree head tube angle with 74-degree effective seat tube angle
  • 435mm chainstay length across all sizes
  • Tapered head tube for 120mm travel suspension fork
  • Boost 148x12mm thru-axle rear spacing
  • Flat mount disc brake standard with 160mm rotor compatibility
  • 29x2.4" maximum tire clearance
  • Threaded BSA bottom bracket shell
  • Internal cable routing for mechanical or electronic drivetrains
  • Direct-mount front derailleur compatible for 2x builds
  • Replaceable derailleur hanger
  • Available in four sizes: S, M, L, XL
  • Available in Honey Mustard, Black, and Blue
Geometry
Size Stack Reach Effective Top Tube Seat Tube Head Tube Chainstay Wheelbase
S 601mm 420mm 576mm 390mm 95mm 435mm 1134mm
M 617mm 440mm 596mm 420mm 105mm 435mm 1157mm
L 635mm 460mm 621mm 460mm 115mm 435mm 1181mm
XL 654mm 485mm 649mm 510mm 130mm 435mm 1210mm