pic: Problem with IFI Wheels

[RogerR]

Originally Posted by Aren_Hill

so wait...how many bearings did you have between the wheel and the axle? because with 2 bearings supporting it i don't think this situation has a likelihood of occurring.

actually, because of the way that they are mounted, the bolt on sprockets (if left unsupported) can create a fairly large load on the wheels. this cyclical loading can cause major problems. this used to be the main cause of failure among the skyway wheels (see also: 1902's 2006 exploding wheels), and while i'm not sure about the new kit wheels (they are much more robustly designed, as they have the bearings mounted farther apart), i've seen some pictures of failed wheels that look suspicious.

further more, if you at look both the sprockets available from ifi and am.biz, you'll notice that they both are made to accept a 3/8 in bore flanged bearing.