I have a 9-0-7 fat bike with a 170 mm rear drop out. I want to modify the seat and chain stays where they meet the tire for more clearance. Is there a way to do this without torching out material and welding? Maybe some sort of compression? I only need to gain a few mm per side.
Mtbr's 2016 Winter Biking GearReviews and Roundups
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Thread: Modifying a Rear Triangle