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Make no mistake, we love what a set of modern, lightweight carbon wheels can do for a bike’s ride quality, but there may be no other component with a higher cost/benefit ratio. Especially given what we’ve learned how well a properly designed set of alloy rims can feel. And the new Line Comp 30 wheels are definitely well designed. 29mm inner width and a shallow 20mm height. And they’re laced to Bontrager’s Rapid Drive 108, a 108-point-of-engagement pawl-driven hub that sounds as quick as it reacts, and can be run with either three or six pawls.
Out of the box, the Line Comp 30s are only available with a SRAM XD driver, but a traditional Shimano HG or Micro Spline driver can be purchased aftermarket, though it’ll cost you an extra $100. But it does come with a valve stem, sealant, and Bontrager’s clever snap-in tubeless liner. Microspline and Shimano HG drivers are available separately. The 27.5-inch version claims to weigh 1790 grams the 29 claims 1955. They’re 28-hole front and rear, boost-only front and rear, and can be purchased separately front and rear at trekbikes.com/bontrager-line-comp-30