Current Projects chat and miscellany

are really tight clearances like this dangerous. I mean the clearance is a tight as it gets, you can even hear the brissles on the tyre clipping the crown race, but it's still completely free running and without any real friction. Anyway I have 28's on there and I was just wondering if a 25 would be better/safer ?

it's not immediately dangerous, it's the clearance between the down tube and tyre that you have to be careful of.