mavic rims
07-28-14, 12:30 PM
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mavic rims
any ideas on how to find out if my mavic ma40 rims are alloy or steel? its not obvious by scouring the internet sites... the eyelets are steel
they are 700c 36 spoke, vintage, as ive just bought a second hand Peugeot Perthus road bike with Reynolds 753r tubing, and 753 on the forks
nice runner, but im not totally clear on the which is the best material for speed.. steel or alloy rims
they are 700c 36 spoke, vintage, as ive just bought a second hand Peugeot Perthus road bike with Reynolds 753r tubing, and 753 on the forks
nice runner, but im not totally clear on the which is the best material for speed.. steel or alloy rims
07-28-14, 03:09 PM
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magnet?
As far as I know, Mavic has never made steel rims.
For rim material, if you want heavy wheels, and don't ever want to be able to stop in the rain, get steel. For everything else, Alu is standard, unless you have lots of money and want to go super fast, then it's Carbon all the way
As far as I know, Mavic has never made steel rims.
For rim material, if you want heavy wheels, and don't ever want to be able to stop in the rain, get steel. For everything else, Alu is standard, unless you have lots of money and want to go super fast, then it's Carbon all the way
07-28-14, 09:43 PM
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Steel rims are ancient tech that should never be considered on any bike you plan to ride today....
Call them "death" rims for the very poor braking performance they will usually give a bike.....especially in the wet.......
Call them "death" rims for the very poor braking performance they will usually give a bike.....especially in the wet.......
07-28-14, 10:16 PM
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thanks for that info, appreciated... good idea with the magnet.. its definately aluminium with steel eyelets
07-28-14, 10:19 PM
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thanks
07-28-14, 10:19 PM
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interesting, thanks
07-28-14, 10:21 PM
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thanks..
07-29-14, 01:10 AM
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The MA40 is a hard anodized rim; even on the braking surfaces. Unless the anodizing has been worn away through previous use, you will start creating some very ugly braking wear on the rims at first.
The good news is that the more the anodized surface wears off, the better the braking, especially when wet, will be. Eventually, the wear will be relatively uniform, and won't look nearly so bad.
The good news is that the more the anodized surface wears off, the better the braking, especially when wet, will be. Eventually, the wear will be relatively uniform, and won't look nearly so bad.
07-29-14, 02:06 AM
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Some of these anodized rims do indeed suffer treacherous lack of braking power in wet conditions.
As randomgear noted, it wears off eventually and braking improves.
As randomgear noted, it wears off eventually and braking improves.
07-29-14, 06:27 AM
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Not MA40's but GL330's. Note the wear by each spoke.
07-29-14, 06:38 AM
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I've been running MA40s on my Bianchi. The braking surfaces did eventually convert to aluminum, but I don't recall seeing at-spoke marks during that process. Perhaps getting caught in the rain a few times hastened the conversion. From my experience I'd say they are very nice rims.
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07-29-14, 08:50 AM
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The wear pattern at the spokes will not occur as much on an MA40 rim because the MA40 rim is much stiffer (Thicker rim walls and a boxier section) than lightweight rims like the 330GLs and GEL280s....so there's less deflection at the rim walls next to the spokes when the spokes are tensioned adequately.
Last edited by Chombi; 07-29-14 at 10:45 AM.
07-29-14, 09:01 AM
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This uneven wear is also visible on some raw aluminum rims, just more noticeable on anodized hoops.
I have conjectured as to why, possible deformation of the rim when the eyelet is installed, possibly localized deformation upon building, too much tension? (I don't think so, but excess tension can make it more pronounced) Also the possibility that braking forced compress the rim just a bit and the rim is a stronger structure at the eyelet, compresses less and therefore wears faster.
The rims I have that use washers (no eyelets) do not seem to have this problem, nor do Scheeren rims which are balsa wood filled.
