These are a mighty improvement over the typical road pads used on the 60s through late 80s ten speeds. The stopping power is twice as good, and because of the clever flexible adjustment mechanism it is easy to install and adjust to the correct toe in, and roll angle. I had no problem with chatter or locking up. Before, with traditional pads it was all I could do to stop using only the front brake. I would have to squeeze the lever so hard I was afraid I'd break the brake arms. With the Kool Stops the braking was effortless and well modulated, right from the start.
In another review I read it was noted that sometimes the allen head fastener bottoms out before the correct installation torque is attained. This is true, but simply adding a washer to the screw is sufficient fix that. easy! I also found that the outer diameter of the attachment screw was just a few thousandths of an inch wider than the slot in the brake arm. So just a few little swipes with a file were enough to open the slot enough to accept the new brake shoes. It was also noted elsewhere that the socket for the allen wrench is a little shallow. This is true, and is a little bit of a problem, othewise I'd have rated these five stars instead of four. But, with some care they are completely useable.
I am using these exclusively from now on!!
Bottom LineYes, I would recommend this to a friend
The pads themselves are the expected high Kool Stop quality, and the spherical washer mechanism would work as advertised, but the binding post used to install the pad is its downfall. The 5mm hex socket is is so shallow that if used with a somewhat worn hex wrench, will easily cam out damaging the fastener. Moreover, even if your 5mm hex wrench finds good purchase, if your brake caliper arms happen to be a little thinner than average you will find that as you tighten, the threaded post comes up into the middle of the binding post pushing your wrench out (and probably stripping out the minimal engagement in the binding post in the process.) In the event of damage to the binding post, a replacement in metric size is difficult to find.
Bottom LineNo, I would not recommend this to a friend