Ritchey Ultra 50th Anniversary Frameset: Red

Since his humble beginnings as a teenager welding broken bicycle frames in his parents' garage in California more than 50 years ago, Tom Ritchey has continued riding, researching, designing, and building legendary bicycle frames and components that have inspired generations of cyclists to experience great rides, influenced legions within the bicycle industry, and have won countless championships.

After a lifetime of riding in the dirt, if there’s one thing Tom knows, it’s how to design a mind-blowing mountain bike. 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, today’s 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.

This special 50th Anniversary Ultra pays tribute to Tom's distinguished history – giving an aesthetic nod to the past while emphatically delivering the breathtaking modern mountain bike experience for which the Ultra is known. As an homage to the rich history of Ritchey and its sport-defining heritage of legendary mountain bikes, the 50th Anniversary Edition frame is wrapped in an iconic red, white and blue fade paint scheme and features logos that reference the company's history and the influence Palo Alto, California has had on Tom.

Designed around a 120mm travel fork and super stable Boost 148 spacing, most of the fun of the Ultra 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.

TECH SPECS

Material heat-treated, triple-butted Ritchey Logic steel tubing - TIG welded
Ultra-light forged and machined tapered head tube
Electrophoretic Deposition (ED Coat) treated for corrosion resistance
Headset integrated - 1.5” tapered (upper IS42/28.6 | lower IS52/40)
Headset upper bearing 41.8mm OD / IS42/28.6 (S.H.I.S.)
Headset lower bearing 51.9mm OD / IS52/40 (S.H.I.S.)
Seat tube clamp size 33.1mm (2.5Nm max for derailleur clamps and chain guides)
30.9mm seat tube with stealth dropper routing and replaceable seat collar
Bottom bracket 73mm - English threaded
BOOST cranks must be used for proper 52mm chainline
Crankset maximum ring size 38T single - 26/36T double
Designed for 1X or 2X chainrings (Side Swing front derailleur required for double)
Recommended tire size 27.5x2.4 (2.8 max) or 29x2.25 (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 2,380g (M/17")
Colour 50th Anniversary Fade
BOOST 148mm spacing (12mm alloy thru-axle included)
Optimized for 120mm (BOOST) suspension travel fork or 500mm axle-crown rigid fork
External cable routing
Replaceable stainless-steel derailleur hanger