The Pivot Mach 4 SL is front and center in the ultralight Cross Country category, making this an easy choice if you’re looking for the lightest race bike. The Mach 4 SL has it all. There’s no debate between prioritizing weight versus rigidity or full suspension. The frame weight starts at a mere 4 lbs!

Pivot engineers utilize their Hollowcore® frame technology to cut weight without compromising strength and durability. Choose between a FOX 100mm fork for a fast race-focused suspension or a 120mm fork for a more downcountry feel suitable for long endurance rides with wide ranging terrain. All builds feature 100mm of Pivot's renowned dw-link® suspension, easy-to-find UDH derailleur hangers, optional Fox Live Suspension, and size specific geometry and tuning to fit riders 4'8"–6'7".

The Pivot Mach 4 SL is a competitive option for cross country racers that desire an exceptionally capable ultralight bike from a boutique brand.