2007blueprius said:
I am still a bit unclear on the Holmes setup, a few threads back it mentioned those are special nipples? as in no washers needed? or did I misunderstand?
JRH has custom nipples that fit MOPED wheels w/o washers. but to fit MOTORCYCLE wheels, you'll need washers. unfortunately, i've heard from JRH that he no longer sells the washers, but will make them when nec for wheels they build.
2007blueprius said:
also beeing that likely the orientation wont match, is it best to use those washers anyhow?
my opinion is they they would help resolve any difference in orientation.
I was reading through some posts and one wheel I came across showed some significant dielectric corosion after some time, so that makes me wonder maybe the material ought to be considered.
i recently posted pics of an MC wheel that showed evidence of lots of galvanic corrosion where the steel(?) washers were in contact with the aluminum wheel, and you can even see it around the steel(?) valve stem hole:
i doubt the new JRH washers (stainless steel?) will cause as much galvanic corrosion as the ones above, but certain metals will always cause galvanic corrosion, especially when exposed to as much salt as that wheel. my conclusion is the best way to prevent this in future is to spray the parts BEFORE installation with anti corrosive coatings, such as boeshield T-9.
i've had a few aluminum rims get destroyed by galvanic corrosion just where they were in contact with normal nipples (nickel plated brass? i really don't know). left untreated, the corrosion will continue until it gets like this (and beyond?):
2007blueprius said:
I am waiting for the rim to be delivered, I ordered a 21x1.6
I understand your 21x1.6 is on the way, and i don't know the specifics of your build, but i STRONGLY recommend you reconsider a smaller wheel. most i know who've built such large wheels regretted it and ended up using smaller wheels on their next builds. hub motors get too hot, even cromotors, when used in such large wheels, and most i believe recommend 17 or 18" wheels, though i stubbornly couldn't go that small (yet). considering the amount of time you are about to put in to measure, buy spokes and build the wheel, it's not too late to get a smaller wheel! and you'll enjoy the higher torque.