Pivot's engineers designed the Mach 4 SL Carbon Pro X01 Eagle Mountain Bike for those of us who are of the pedal-your-own-way persuasion, with a featherweight construction that's stature is anything but, offering stiff control and power that scales in at a whopping 300-grams below the previous Mach 429 SL. The new Mach 4 SL takes queues from the venerated Mach 4 and 429 SL, bringing the 4's lightweight and nimble attitude to the trail. Plus, the SL's progressive cross-country tuned setup is made for soaring to the front of the pack, gliding over slick root gardens, and charging forward to earn your spot as the KOM. *Due to unprecedented demand in the global supply chain and the bike industry over the last 18 months, material weight and exact components are subject to change. We are working diligently to keep tech specs updated, and any adjustments will be minor. If you have any questions, reach out to a Gearhead by chatting online or calling 1-888-276-7130.