Alumiininippelit vs. messinkinippelit
Tuli vastaan mielenkiintoista infoa aiheesta alunippelit vs. messinkinippelit. Tässäkin ketjussa on mielestäni spekuloitu näiden eroavaisuuksia ja etuja toisiinsa nähden. Kyseessä PinkBiken suorittama haastattelu DT Swissin edustajan kanssa.
What is the difference in strength between aluminum and brass spoke nipples?
Lainaus:
I think it's better to attack this from a "pros vs. cons" debate between the two. The advantages to brass nipples are they are less expensive to manufacture, and due to the harder material (brass), brass nipples are less prone to rounding by the nipple wrench. Brass nipples are better for wheels that see more service and are used in corrosive or dirty environments. Brass nipples can also be a bit easier to build with because the nickel-plating acts as a "lubricant" allowing them to spin a bit more freely under tension. The main disadvantages to brass nipples are increased weight and limited color options.
Alloy nipples have their place too. They are lighter and reduce rotational weight at the rim which some users feel is critical. Colors and build personalization abound with alloy nipples. Numerous anodized color options are available to help customize any build. There are some things to be mindful of when using alloy though. Due to the softer metal, care must be exercised when building/using alloy nipples in order to not round the nipple at the wrench flats. This is where our Hexagonal or Torx nipples really shine. Both offer more purchase for the nipple wrench and allow for better performance. Corrosion can also plague alloy nipples being used in high-mileage, all-weather applications. Typically, this pertains to wheels that see little maintenance and many, many miles in wet environments.
As a side note to the nipple discussion, DT Swiss manufactures nipples for just about any application imaginable - different materials, colors, wrench interfaces or locking agents are all available from DT. I point this out, because choosing the right nipple for the build shouldn't be an afterthought. Proper nipple choice (I can hear the funny reader comments now....) is just as important as choosing the right rim, hub or spoke.
Summa summarum:
- Messinki kestää paremmin kulmien pyöristymistä ja korroosiota. Parempi vaihtoehto märissä ja likaisissa olosuhteissa vähällä huollolla olevalle kiekolle.
- Alumiini on kevyempää ja se on helpompi saada erilaisiin muotoihin, joilla helpotetaan pinnojen asennusta. Alumiinia voidaan myös anodisoida moniin eri väreihin.
Lähde: http://www.pinkbike.com/news/To-the-...okes-2013.html