The Ritchey Ultra Frame is designed around a 120mm travel fork and super stable Boost 148 spacing. 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.

• Compatible with 27.5 x 2.8" and 29 x 2.4" tires
• Internal routing for a dropper post
• Boost 148 x 12mm rear spacing