Allied BC40 Frameset

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The Allied BC40 Frameset is a lightweight carbon cross-country mountain bike frame built for riders who demand race-ready efficiency without sacrificing capability. Designed and ma nufactured in the USA, the BC40 features modern XC geometry, 120mm suspension compatibility, internal cable routing, UDH compatibility, and clearance for today's aggressive trail tires. Fast on climbs and confident through technical descents, it delivers the performance needed for XC racing, marathon events, and spirited trail riding. Whether you're building a podium-worthy race bike or a lightweight trail machine, the Allied BC40 provides a premium foundation for a custom mountain bike. Show more