What's the difference?
 

I am looking at buying some racing tires for my revo and LST, and come across a problem:

I don't know what the difference is between the 40 SERIES TIRES(not 23mm) and the Standard Size Monster Truck Tires is.

so what exactly is the difference?

RE: What's the difference?
 

40 series rims are bigger and come in 23mm and standard (example: proline velocity 6) ... the 40 series tires are not as fat (kinda like 1/1 scale 40 series tires), therefor giving you more stability & better handling but will be less forgiving when landing the big jumps

RE: What's the difference?
 

here ya' go... the left one is a Proline Velocity 6 40 series rim (standard hex) w/Crimefighter tire and the right is obviously a LST / Aftershock rim & tire .... now - I know the racing tires for the standard size rims are smaller than the claws in the pic, but this is mainly to show the difference in the rim size. Overall, I think the standard size racing tires are the same height as the 40 series (or really close), just, more rim - less tire