Subject: RE: chain ring sizing My initial question is WHY? Do you have 650c wheels that you need the larger chainring up front? My coach who AVERAGES 25-26mph in his triathlons doesn't even turn a 54T. Ok, that being said... You may find that your chain will not drop properly into your 38T from the 54T. Be sure that if you, in fact, change to a 54T or ... god forbid a 55T you read the manufacturers recommendations on mating. Chainrings go in pairs (or triples for a triple crank) and have specifically engineered spacings/offsets of the teeth (when compared to each other) so that the chain can fluidly switch from the small to the big and back down to the small. That's the reason you see the little arrows on the chainrings so that installation is properly done in order to effectuate this smooth transition back and forth on each chainring. BTW, never heard of Boone titanium chain rings but they sound like a big waste of money on the surface. |