RaceFace Aeffect 35 Stem Black, 50mm

If you're keen on importing the new gravity standard of 35mm bars to your XC or all-mountain rig, then Race Face's Aeffect 35 Stem has you covered. Its 6061 aluminum body is lightweight and designed for single-crown forks, but it lets you replace your oversized 31. 8mm bar with an over-oversized 35mm model. The overall expansion of bar and stem does come with a slight weight gain, but we think the added stiffness and reliability of a reinforced cockpit is worth the few extra grams -- especially considering the wider, 750mm bars we're seeing on XC and all-mountain machines.