Old 03-15-19, 11:40 AM
  #82  
Vegas3416
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45mm Trek checkpoint - 54 size frame

I'm not that crazy yet of a rider as I'm just getting back into riding but 45mm tires with the stock Shimano 105 setup on my ALR5 fits just fine. Going much bigger than that at least in the rear I could go bigger but I'd have to move the hub backwards. The front of the bike I have about half an inch on each side of the forks. I'm told that should be the biggest I should go up front but I think I could go bigger but if you run a low psi it may flex and hit the inside of the fork but again so far..so good.
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