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Mavic Rim failure
NB: Originally posted elsewhere on the Global Riders Network and appears via syndication.
Went out for a final "training" ride for the Husky today and had a major failure of my rear rim (a 4.5 yrs old Mavic 721). Ripped two spokes clean out of the rim. No stick in the spokes, just a nasty twang while pedalling hard up a little rock garden area. Very careful ride home.
Fortunately the rear cassette off my spare bike is at a similar wear level, so (fingers crossed) a rear wheel swap and tyre change this afternoon and the Prophet is good to go for Sunday. Glad it didn't happen 25kms into the race...
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4.5 years? I rekon years as a wear and tear indication are kinda irrelevant.
I'd be stoked if my wheels would last 4 years of bashing around red hill a couple times a week.
Did you have thousands of low maintenance trouble free fun kilometers out of it, have you ever checked the spoke tension/wheel truing?
probably close to 10,000km's, mostly off road (I've reset the odometer a few times, so can't be exact). I got the 721 because I had a history of buckling rear rims and breaking spokes - more to do with weight and not very smooth riding style than doing any serious drops / jumps etc.
Was just surprised to see it go in that fashion at fairly slow speed......
10000K's.. I think that's sensational economy in anyone's book.
The one wheel failure that I have had (really multiple spoke failure, my rim should be ok) happened at low speed and I think that was due to me not checking spoke tension and I have seen another failure on a friends bike at low speed. (he never bothered to check the spokes as well)
I'd guess it makes sense that the lower the speed the more stress ( as a function of time) on the that part of the wheel..? and besides; In any case I'd take a low speed wheel failure over a high speed one any day of the week