Currently got B/Stone 014's on my bike. Back tyre is squaring off and needs replaced. Want to get a 020, as got an extra 2 teeth on the back sprocket for acceleration and the 014 thats on just now has only done 1200 miles. Can i fit a 020 to the back? Will it effect the handling? I know the grip isnt as great, but some of the guys say its more than enough. I fitted a new front tyre 2 months ago, and love :D the acceleration, so wont change back to original sprocket. If anyone has any input, please feel free.

Cheers!!

If I were you I'd fit the new 021 to the rear and leave the 014 on the front.
The 020's are good but the new 021 is better.