Kool Stop Thinline Threaded Bicycle Brake Pads - High-Performance Braking for Road & Mountain Bikes - Perfect for Commuting, Racing & Off-Road Cycling

No complaints here.There are some weird flutes at the base of the post that increase the diameter ever so slightly larger than the internal diameter of the included washers. I can't say I understand the need for this as other pads don't have this, and these pads try to rotate when tightening just like any other brake pad. But they're there, and during tightening, the too-small washer is forced down along these flutes for a tight interference fit.These pads are straight, not arced, and being 70mm in length I had some concern that they wouldn't work well with the 406mm (20" BMX diameter) rims I was installing them against. No worries there, the tips don't quite touch the tire's sidewall, and the center part of the pad is all against the rim. These aren't the ideal length for this application, but I bought 'em because they're yellow and I wasn't finding any shorter choices.They modulate well and don't make any noise, installed with non-adjustable Tektro V brakes.