On Thursday, 22 October 2020 07:03:06 UTC+11, S wrote: > > I don't see how this general idea is wrong or "misinformation": > > "I try to make this slotted part of the arm be perpendicular to the brake > pad post when the pad contacts the rim. Why? Because this lets the pad > hit the rim as squarely as possible. Too far past 90 degrees and the brake > loses power (especially true with v-brakes) and when the arm is past 90 > degrees, it’s on its way to promoting the pad diving under the rim." >
The second part of this description (that the angle of the arm can somehow promote the pad diving under the rim) is garbage. The geometry of the pad/rim interface relative to the brake pivot point doesn't change regardless of what path you follow between the two. It's just as much woolly thinking as the PMP cranks from the 1980s, that were supposed to eliminate TDC and BDC when pedalling: <https://cdn.road.cc/sites/default/files/styles/main_width/public/pmp-cranks-2.jpg> Nick -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To unsubscribe from this group and stop receiving emails from it, send an email to rbw-owners-bunch+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/rbw-owners-bunch/a183036d-8cea-43ee-ba82-9025c4cca196o%40googlegroups.com.
