Viewing 16 posts - 1 through 16 (of 16 total)
  • Let's talk nipples
  • Premier Icon roundwheels
    Free Member

    Any help on this ? I recently bought a set of wheel from eBay, one selling point was they had been respoked, also look new too, first ride the nipples started to pop. To which I found out there aluminium nipples, it’s been suggested that I change them to steal or stronger metal?

    Now after a quick search, I can’t seem to find any other type other than alu?

    Thanks

    Premier Icon juanghia
    Free Member

    Brass…always brass

    Premier Icon Rubber_Buccaneer
    Full Member

    I’d recommend brass (aluminium or brass are the only choices I know of) but I also wouldn’t expect aluminium nipples to break when new.

    Premier Icon schmiken
    Full Member

    Brass.

    Premier Icon roundwheels
    Free Member

    Yeah, from what I’ve found out it’s more the skill of the craftsmen when using alu nipples

    Premier Icon toppers3933
    Free Member

    Ali nipples are generally total crap. Brass all the way. They’re marginally heavier but in 6months time you’ll actually be able to true the wheels.

    Premier Icon DickBarton
    Full Member

    As others have said…brass.

    Premier Icon orangeboy
    Free Member

    For day to day use and long term reliability brass is best but I always build my own with alloy nipples and some of the wheels are years old now and still fine.

    But I’m light and don’t do crazy stuff

    Oh and im a huge weight weenie

    Unless it’s a carbon rim in which case brass unless you like regular rebuilds , carbon and aluminium react badly

    Premier Icon Northwind
    Full Member

    I just put alu nipples in a new wheelset but a) I can fix it when it goes wrong and b) I’m a known idiot. For everyone that doesn’t fall under at least one of these categories, brass is just the way to do it.

    (with proper spoke depth, and decent parts outright strength with alu shouldnt be an issue, but when they crop up in cheap/oe wheels you can’t really assume either of those things is true. The real bollocks is corrosion and seizing- it’s an evil combo, they’re both more likely to sieze, and more fragile when you try to unseize them, so you come to true a wheel and snap.)

    Premier Icon ransos
    Free Member

    I’ve had alu nipples split due to corrosion. Brass for me.

    Premier Icon Rubber_Buccaneer
    Full Member

    Unless it’s a carbon rim in which case brass unless you like regular rebuilds , carbon and aluminium react badly

    Very interesting. I’d always been happy with aluminium alloy nipples until I had a few break recently. They were getting on for a couple of years old and were in my first ever set of carbon rims. I had not realised that the carbon could increase galvanic corrosion. Really good to understand what caused my problem and therefore avoid it in the future

    https://www.corrosionpedia.com/2/1556/corrosion/galvanic-corrosion-of-metals-connected-to-carbon-fiber-reinforced-polymers

    Premier Icon cynic-al
    Full Member

    with proper spoke depth, and decent parts outright strength with alu shouldnt be an issue

    Seen plenty of well built wheels with DT spokes and DT alloy nipples fail!

    Premier Icon philjunior
    Free Member

    Sounds (as others have said) like too short spokes. I would check spoke length and use brass – more for the ability to true them later on than due to strength.

    There is some weight saving to using Al nipples, and I would use good quality ones if I was building up a set of race-only wheels.

    Premier Icon benpinnick
    Full Member

    Seen plenty of well built wheels with DT spokes and DT alloy nipples fail!

    On the flip side dt’s own wheels all use Alu nipples and they have a pretty good reputation for being robust and not problematic beyond the normal truing issues on older wheels.

    Premier Icon Northwind
    Full Member

    cynic-al – Member

    Seen plenty of well built wheels with DT spokes and DT alloy nipples fail!

    Through outright lack of strength (ie bottom breaks off nipple) or through corrosion/wear and tear/bad engagement? I’ve seen lots of the latter but never the former- the nipple itself isn’t much less substantial than the rim

    Premier Icon Rubber_Buccaneer
    Full Member

    Mine weren’t DT spokes or nipples but the heads snapped off at the point where I’d guess there is most friction with the (carbon) rim. The heads of all the spokes had a soft white coating which I assumed to be a bit of Stan’s residue or similar but having read my own link above was most likely the byproduct of corrosion. The wheels had been reliable for almost two years then nipples start popping.

    By contrast I recently gave away a set of 20+ year old wheels with alloy nipples that I was able to re-dish (came off an offset frame) and they are still going strong.

Viewing 16 posts - 1 through 16 (of 16 total)

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