I have a buddy who has them and I bought a pair and then sold them for a extended. The A&R ones will change your chain angle this is why I would not use them. My buddy is 240 lbs roughly and they have not broken but he has gone through two chains until he made his own rollers with bearings. This could be fixed with good chain rollers but it will rub constantly the extensions are at the angle of the mount not the swingarm bar so it goes down at an angle then straight out two inches. This puts A sh*tLOAD of strain on bottom of chain while the top stays loose. MaKE SURE YOU HAVE CASE SAVER IF YOU ARE GOING TO RUN ONE. I would say don't take the chance as I did, I bought them, mocked them up, could not get chain to sit right, pushed hard against sliders. Never rode them, took em off, sold em and bought a real swingarm.
just think 50+ for extension 70 for adequate rollers/sliders, case saver 25 or so if you can even get em any more from freeek. Your like 20 shy from an extended
