I'm currently geared 16/46 w/ MMM and a Neu 1515 1/y/f....any higher and the wheel spin is too much..well....depending on your track....but I put a 19T for asphalt speed runs and it FLIES!!!....and (i believe some on here already mentioned it) the tires screech when you turn and it sounds just like the real thing!!!
I'm currently geared 16/46 w/ MMM and a Neu 1515 1/y/f....any higher and the wheel spin is too much..well....depending on your track....but I put a 19T for asphalt speed runs and it FLIES!!!....and (i believe some on here already mentioned it) the tires screech when you turn and it sounds just like the real thing!!!