New to the forums. Maybe a silly question about wheel / tyre combo

mason5697

Hi. Pretty new to road biking (january) really enjoying it. Riding a hybrid the now with 28c tyres. Really enjoying the cycling.

So I bought a set of Gatorskins. 700 x 25c. But looking at a chart online, it says my 622 x 19c wheels will only accommodate 700 x 28c +.

I have done a bit of searching. And some people say that these charts are very conservative. So would I get away with the 25c Gatorskins on these wheels? Anyone any experience with this?

Thanks.

The Rookie

The charts are conservative, and the trend in recent years is to wider rims which reduce the aero drag created by the bulbous tyre narrowing to a narrower rim.

I presume you are using this guidance
http://blobs.continental-tires.com/www8 ... e-data.pdf
I know people riding 25's on a 21mm rim without issue, I think you'll be fine.

Note though that rolling resistance would be lower with a 28mm tyre, so upto about 15mph or so it will mean less effort on a 28mm, only once aero becomes more of a factor will 25mm be easier.