steve browne wrote:Second hand stainless rims: possibly my experience is not typical but I have purchased two pairs (ebay) which look fine but the front wheels are not completely circular. So the rim brakes snatch as the wheel rotates. It is very difficult to pick up this fault without the rim on a wheel and the wheel in a truing jig. Probably been ridden into a granite kerb in the 1950s! I am in the process of fitting a hub brake to one roadster front wheel just so I can keep the rims as a pair. I hope you have better luck than me Tim.
I wonder how much this tells us about your wheel building skills
Steve, you should ignore such taunts
. You have my support here. It can indeed be difficult to build a really good wheel with a second hand rim - and rim brakes are not at all tolerant of wobbly, dented or otherwise imperfect rims. I have managed to knock out the worst of a ripple in the braking surface, almost certainly the result of hitting a curb or pothole, but it can still be felt when braking. The worst problem is when there is a "flat" on the rim covering just a couple of spoke holes - impossible to get rid of by spoke tension alone.
Anyway, it makes hub brakes look ever more attractive - especially on old roadsters as some models had them originally.
I've got a couple of project involving hub brakes on the go - my lady's Royal Enfield with rod operated ones, and a more modern "bitsa" based on a Raleigh Routier frame and SA Elite hubs. I'll be posting photos when there's something worth showing.