Oversized tyres and teaching my son to measure! So my son has been trying to customize his bike and seems to have never heard of a tape measure!! I need some help to get him on the road! He has purchased 2 oversized tyres with a size 26 x 2.50. The exsisting tyres are 27.5 x 2.10 so will these tyres fit onto that size rim?
The tyres that are currently on the rims are a brand called kenda and seem to be stuck to the rim somehow, I cant seem to take them off the rim? If anyone can help me I would be so grateful cause at the moment I'm getting grief from all angles and it's not even my fault!!!!
Regarding diameter: You can't put 26&quot; tires on a 27.5&quot; rim, which it sounds like your son wants to do. I can guarantee with absolute certainty that the new tires will not work because they're the wrong diameter.



Regarding width: We don't know the width of the rims on your son's bike.
Also, rims can handle tires across a range of widths. It is possible that the 2.1&quot; tires on the rims now are at the outer limit of the rims' range, but we have no way of knowing. I'd look at the rim and look up the manufacturer's guidelines online.
Regarding removing the existing tires: do you have tire levers? There are numerous videos showing how to remove a tire. Here's one.