[krill]

I can move my rear sprocket from side to side by about 2mm, it seems to be a floating fit, all nuts are tight, is this normal ???????

 

[GReeK]

there was a thread about it I think under superbikes. Its normal, I got scared when I saw that on mine and then looked it up. Nothing to worry about

 

[dave2riff]

Yep, the cush drive is built into the sprocket on these bikes. Rubber
grommets surround the 5 bolts holding the sprocket... the sprocket
essentially "floats" in a ring of hard rubber to cushion the tranny and
other drive parts from the shock of sudden changes in rotational speed.
For instance, every time you bang a gear without matching revs, there
is a jolt to the driveline. Dirt-only bikes don't have cush drives since
breaking traction provides a torque-limiting factor for cushioning driveline
shocks, as well as the flex of the high-profile knobby tire.

 

[MTScott2]

I thought I screwed something up while breaking in the bike not so easily..All is well.You think the sales dept would tell you about this stuff..

 

[krill]

Thanks for the advice, it was a bit worrying I did have a look at another Hyper but couldn't find any movement in that one