[loverobot]

i have just chaanged the front sprocket on the above

when looking at it there is just the sprocket, a plate that sits in a groove with teeth counter-opposed to the ones on the sprocket and 2 allen head bolts holding them both onto the shaft

two questions

1. the sprocket moves forward and back on the shaft - like it should have a spacer behind it - normal?

2. what is the correct torque setting for the bolts and should i use thread lock?