I have a 42t for my R from these guys. Its reversible and is an alloy...by reversible i mean when you wear the teeth out in one direction, you simply flip it around. IT HAS WORKED GREAT!! i have smoked many rocks w/ it too. it is claimed to be "self cleaning too" iono what that means, but i would put it against any sproket out there--well i have had great luck w/ them to say the leastOriginally Posted by 4cylinders


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