I know alot of ppl that have um, and I've seen alot of ppl dump their bikes that have um, and I have to tell you, they didnt do squat! Their plastic still got ground down. I don't know, at low speeds, they may work. Most ppl I've known lowside at higher speeds tho, so what I've seen, they didn't work.
my sliders came in handy at the track last month...saved my plastics from gettting really fucked but they still got scratched to hell...i think that if you crash hard enough to mess up your frame because of your sliders you should jus be happy that you are alive...sliders are the most useful at low speeds or if you jus drop your bike by accident...my buddy got them and the next week he stepped in some gravel while parking and lost his footing dropped his shit and not a scratch on it...
Well just like the name, they are frame sliders. Made to protect the frame and the bikes that I have seen that went down and had them on didnt have any frame damage. Some are lucky enough that their plastics will get minor scratches, but that's not a gaurantee and they aren't even there for that.
Frame sliders are great. If you drop your bike you can prevent a bunch of damage and $$$$$ to repair it. I made use of mine not too long ago when a closing underground garage door caused me to drop my bike. I had no damage to the fairings. I just had to replace a broken right mirror. But could have been a lot worse.
get real frame sliders, not chrome or other metal ones. They are designed to ground down and take impact, which metal does not do, i have sliders and luckily dont know if they work yet. The only time i heard of frame damage was from chrome or other metal-type slider that just transfer the impact to the frame