[Masteryota]

Let me break this down a bit, whats known as a 520 chain is smaller than the 530, not in the link length, but in its width of the link. what is known as a #50 chain is the exact same size and width as a 530 chain, and is normally the industry standard chain size for most anything over 500cc and is chain driven.

That being said, you can use a 530/#50 chain on a 520 sprocket, but the chain will move side to side on the narrower sprocket and cause excessive wear to the chain and gear. As a bike owner and wrench turner, this would be very bad on a street bike pushing 100+hp and speeds in excess of 90mph, on a buggy like ours, putting out 12-20hp and speeds in the 30-40mph range, it would still happen, but at a much slower pace.

As for the gearing, you can do what you want, but the added weight won't slow you down, but will add a great deal of stress to the internal centrifugal clutch, and may cause it to slip and fail prematurely. Take a look at the prices for a new replacement clutch, and not the manual one for shifting, new parts are around $140 for the drum, and $70 for the three shoes, and Honda is the only one who makes the drums, plus having to partially split the case to replace it. That's why I opted to drop the ratio down, to get the engine RPM up to keep the clutch locked, and not slipping on take off, as that is the clutch that gets you moving.