Subject: RE: Ironman USA Lake Placid : Official ThreadTire question for the group. I am using the Tufo S3 Lites. I know nothing about tires other than these came recommended. The tires on my wheels now are 700x21. I need to order 2 spares for the season and I found a great sale online for $54 each. They don't have 21mm in stock and only have the 19mm. Is this a big deal really? I am sure there is some 5 page article somewhere debating tire size and wind resistance and rolling resistance. I am thinking it is not and especially since I am hoping these to be my spares (unless I have a flat prior to LP ). Again, don't know anything about tires but kind of think I am making something out of nothing here. Thoughts? The wheelset is Blackwell 100mm tubular both front and back if that matters. Thanks! |