Hi

i've just started work on an NC30 which will be only used as a track day bike. Any advice regarding front and rear sprocekt sizes? Im going to go for 520 but not sure if the standard 15/40 would be track fit?

Thank you

You might get more replies if you identify the tracks you intend to run.

Happy New NC30 Year..
I ran at 14F & 41/42R last season.
Mainly Oulton, Anglesey & Cadwell though.
Definitely use a 520 set up but remember to get your alignment right & true at the back wheel.
Happy spannering...

I reckoned on 14/41 was good enough for most of everything I rode at :)