Road Bike Tyre Size Calculator

Imperial metric and american.

Road bike tyre size calculator. But the most important upgradation that majority of the auto enthusiasts always look for is tyre upgradation or tyre upsizing. The best tire pressure to use is a subject of much debate. Road tri bike tire pressure calculator. Tyre size calculator tyre upsize calculator.

And if i went 29 tyres what would be the biggest and smallest size 1 75 2 25. A iso tire size of 28 622 which of course is backwards b c it s european from how we would refer to a 700 x 28c tire has a tire width of 28 mm and a rim diameter of 622 mm. Switching from 630 to 622 for example needs another 4mm of brake reach. 622 is the equivalent of a 26 wheel size so you ll be looking at a slicker 26 tyre to replace the smart sams with the weight of the bike you will just need to make sure you don t go for anything too narrow or you will affect the comfort of the bike and possibly be at risk of damaging the rims.

So there is not a single simple number formula or other type of one size fits all answer. These two extremes however represent only the upper and lower pressure limits. His calculator uses an pre defined diameter for every rim tire combination and his diameters are almost always different than what the math would predict. For standard trekking wheels the most frequent choice would be a tyre pressure between 3 and 4 bar.

If i went 700c tyres what would the biggest and smallest size 30c 40c. Your weight the bikes weight tire size weight distribution and rider preferences. The calculator above is based on the iso etrto european tyre and rim technical organization tire size which specifies tire size as a tire width and rim circumference in mm. By comparing this dimension you can see if the brakes will reach when a different size of rim is fitted to your bike.

I have a 29 mtb rim with a 25mm inner rim width. The venerable sheldon brown has a gear calculator that uses a different method to determine wheel size. Etrto tire size l mm l cm inch 47 203 12x1 75 935 94 54 203 12x1 95 940 94 12 40 254 14x1 50 1020 102 14 47 254 14x1 75 1055 106 40 305 16x1 50 1185 119. There was a time when most riders would opt for 23c tyres on the road pump the tyre pressure up to around 110psi for every ride letting out just a little air to provide extra grip in poor weather.

I am looking at putting some fast tyres on that are slightly off road capable. A thin road tyre would have 6 8 bar of pressure much like a road bike have a look at our tyre pressure calculator for road bikes while for a fat bike tire a pressure of 0 5 bar will suffice.