Looking to do a 1x conversation on my 2015 trek 3500, I believe i have a square tapered bottom bracket and I am curious if any other bottom bracket would fit to
3500 - Trek Bikes
TREK 3500 3 Series Mountain Bike - bicycles - by owner - bike sale
TREK 3500 Alpha Gold Aluminum Bicycle Racing Frame 33 CM Wheel 26 In | eBay