R
Rob Morley
Guest
In article <[email protected]>, spokes
[email protected] says...
>
> > That reminds me. I must check my rim wall thickness soon before I have
> > another explosion.
>
> When pretty much all the black's worn off your black mavic rims, does that
> mean it's time to start thinking about new rims?
>
No. You can usually tell by touch if a rim is well worn, as the braking
surface will feel noticeably concave. When it's near failure you'll
often find that the flange starts to flare - it's a bad idea to use a
rim in this state, as simply inflating the tyre to maximum pressure will
often split the rim. I've seen it suggested that if you think a rim is
near the end of its life you can overinflate the tyre by 50% to see if
this causes failure. If you do this you should wear eye (and preferably
ear) protection, and leave the wheel somewhere safe for a while - if it
doesn't explode, don't do anything with it until you've reduced the
pressure again.
[email protected] says...
>
> > That reminds me. I must check my rim wall thickness soon before I have
> > another explosion.
>
> When pretty much all the black's worn off your black mavic rims, does that
> mean it's time to start thinking about new rims?
>
No. You can usually tell by touch if a rim is well worn, as the braking
surface will feel noticeably concave. When it's near failure you'll
often find that the flange starts to flare - it's a bad idea to use a
rim in this state, as simply inflating the tyre to maximum pressure will
often split the rim. I've seen it suggested that if you think a rim is
near the end of its life you can overinflate the tyre by 50% to see if
this causes failure. If you do this you should wear eye (and preferably
ear) protection, and leave the wheel somewhere safe for a while - if it
doesn't explode, don't do anything with it until you've reduced the
pressure again.