Ma77 wrote:The stock one is 16 teeth for a 50 size chain
Standard Factory Sprockets are 15T and available at almost any Chain/Sprocket supplier or Honda Dealer.
A lot of people drop a tooth to change the characteristics of the bike.
(I can never remember wether this Increases top speed or Increases Acceleration, LOL)
however, using anything under the standard 15T sprocket on the front has been found to massively reduce chain life. A lot of people changing the chain and sprocket again after only a few thousand miles!
Try just changing the Rear sprocket for now, unless you have already done that?