Having had bike a few weeks have now decided to drop a tooth from 10T to 9T on front. Before trying to remove the securing bolt can someone please advise if it is RH or LH ?

 

I'd hate to find it tight and in ignorance tighten it further rather that loosen.

 

I know, it's a numpties question

Normal RH from memory.

 

It's a RH thread.

 

Another thing I found with some 9T CS sprockets... The Belleville washer (PN 90501-NN4-003) can have a larger diameter than the CS sprocket pocket it fits into. So you might need to grind the OD of the washer so it can properly flatten and do its locking thing when the bolt is tightened. It may depend on brand of CS sprocket, but it's something to check.