New #40 chain and 428 sprockets (13 front, 26 rear) came in this week. I also went ahead and picked up a chain roller/tensioner. ANy pointers for changing out the chain/sprockets on this thing? I know the chain gaurd will have to go which is no big deal. Will I need to use an impact wrench to get the front sprocket off? What size is the countershaft nut on these things?

 

No nut on the front sprocket. It's a clip.
Should be easy.

 

Do you know what size the nut is that holds the rear hub on?