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 Post subject: Mavic Monthlery Rims
PostPosted: Wed Sep 02, 2020 7:44 pm 
Dirt Disciple

Joined: Sat Jul 25, 2020 8:44 pm
Posts: 14
Location: London
Hi all. I’m looking for advice on these rims and rim wear in general.

After some searching, I’ve seen that Campagnolos advice is to replace rims after 0.4mm of wear on the breaking surfaces.

And this image has the statistics for the monthlery rims.

Attachment:
7BD51202-9291-4B5E-B2BA-C7DBF9D800C0.jpeg
7BD51202-9291-4B5E-B2BA-C7DBF9D800C0.jpeg [ 52.46 KiB | Viewed 430 times ]


However after taking my own measurements, I’m none the wiser.
The used Monthlery Pro rims I have, measure 20.5mm average front rim, 20.3mm average rear rim. But many sources on the internet say they should be 20mm. So how do I know when they are too worn to ride?

Next are a pair of Monthlery Route new old stock. These should be 21.5mm but I make them 21.8mm average from my measurements.

So my question. Is there anyone else out there, with these rims? that has nothing better to do, that might be kind enough to measure them :D

Is it ordinary for rims to be slightly different sizes to the catalogue? And if so, at what diameter do they become dangerous/ useless?

Am I just crappy with a pair of callipers? :lol:

Any information appreciated.
Dan.

Attachment:
1CA18846-C635-4E01-A842-EBD76DDE2892.jpeg
1CA18846-C635-4E01-A842-EBD76DDE2892.jpeg [ 28.56 KiB | Viewed 430 times ]


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 Post subject: Re:
PostPosted: Thu Sep 03, 2020 12:47 pm 
Retro Guru
User avatar

Joined: Thu May 20, 2010 9:03 am
Posts: 2645
Location: Bodmin,Cornwall.
Don’t worry too much. Clinchers when worn will explode outward at high pressure. A sprint rim doesn’t have that pressure pushing out. I’ve ridden some well used sprint rims with no issues. Presumably as the side walls wear the rim gets softer so will need truing more often.


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 Post subject: Re:
PostPosted: Thu Sep 03, 2020 12:49 pm 
Retro Guru
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Joined: Thu May 20, 2010 9:03 am
Posts: 2645
Location: Bodmin,Cornwall.
I have a new Month Pro rim if I remember I’ll measure it later tonight. Might have new Route as well.


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 Post subject: Re: Mavic Monthlery Rims
PostPosted: Thu Sep 03, 2020 1:20 pm 
Dirt Disciple

Joined: Sat Jul 25, 2020 8:44 pm
Posts: 14
Location: London
Ok nice. That makes sense. At least if my skills with callipers aren't on point, it’s not going to explode! :shock: Its kind of terrifying to think of 100psi in a thin metal clincher rim.


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 Post subject: Re: Mavic Monthlery Rims
PostPosted: Thu Sep 03, 2020 2:25 pm 
rider | rBoTM Winner
rider | rBoTM Winner
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Joined: Fri Jan 25, 2008 1:42 pm
Posts: 5626
Location: West Yorkshire
The worst thing to happen is when the rim is so worn that a hole appears in the brake surface when you're riding and the brake block goes into it - especially if it's the front!

This happened to a mate but luckily he managed to hold on!


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 Post subject: Re: Mavic Monthlery Rims
PostPosted: Thu Sep 03, 2020 2:44 pm 
Dirt Disciple

Joined: Wed Aug 26, 2020 9:39 pm
Posts: 49
I had a rim do that, one which I'd downgraded from a race wheel to a winter training wheel. Found an oval hole about 3mm wide and 5mm long.


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 Post subject: Re: Mavic Monthlery Rims
PostPosted: Sat Sep 12, 2020 8:58 am 
Old School Hero

Joined: Fri Aug 24, 2018 9:48 am
Posts: 231
Location: Copenhagen, Denmark
Interestingly, these rims have been badged as 'Monthlery', 'Montlhery' and even 'Monthelery'. The place they are named after, is Montlhery, so the rim shown, is mis-spelt (as are the vast majority). Not sure what Mavic were thinking?!


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 Post subject: Re:
PostPosted: Wed Sep 16, 2020 12:15 am 
Dirt Disciple

Joined: Thu May 28, 2020 5:38 pm
Posts: 84
My first ever pair of racing wheels! Came on an orange and white Mercian 531SL, bought from Rutland Cycles, Nth. Frederick St, Dublin. May 1981. Memories. :D


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