My rim has been compromised!

[Gravity Aided]

When you consider the flexing that a rim encounters over the period of a ride, as well as some of the sketchy alloys used from time to time in their construction, I am always impressed we do not see more rim failure.

 

[gwhite]

My Mavic ceramic rim failed exactly as the one in the OP and there are reports of many others doing the same.

 

[Cyclopathic]

You may have buggered your rim but your hub should be ok as long as you haven't split your flange. Just take care when tweaking the nipples.

 

[andrew_s]

The MA3 apparently had an ERD of 607mm - http://www.kstoerz.com/freespoke/rim/288

Rigida Chrina has a 608 ERD (Spa Cycles). Max 28mm tyres

Similar cracking has always happened (I've had it on Mavic Module 3 and 4 in the early 90s), but it's more common nowadays due to a combination of "my rim's lighter than your rim" marketing and the prevalence of thick anodizing. The basic problem is spoke tension higher than the rim will cope with.

 

[cyberknight]

I checked the front rim of my virtuoso today and there a definite bulge all the way round close to the outside edge compared to the rest of the rim , methinks it might be time to look into a new rim or just get a new wheel from decathlon for £25, i figure the wheel owes me nowt as it has got to have 15k miles on it easy .