wrote:

In the flatlands we never worry about this stuff but still seems unreal
you could blow a tire by overheating the rims.

How long does the descent need to be and braking? I have taken a mile 5-9%
grade down and had to brake in places but does it mean you simply ride the
brake continuously to get too much heat.

Have any here had this happen due to heat not poor install or other tire
blows.

Deacon Mark

myself no, I grew up in area with both short and very steep and longer
shallower climbs though I'm more MTB than roadie.

longest decent i've done is just shy of 22 miles I've done it few times
now, not thus far had problems with the rim warming much.

I'm sure some can get into trouble one only has to go on
charity/sportives etc to see that riding ablity covers quite a range!

Roger Merriman