Originally Posted by Trips
1/4" is the standard rear axle size, pretty much everyone is usinig it, but Corally, Serpent and Xray may be different, also the Hot bodies may be different, don't know for sure.
1/8" is standard up front, the CRC GENX (Pro Strut front end) uses a 3/16 axle tho. Again, Corally, Serpent and XRAY may be different, but not likely in the case of the front axle.
The Serpent S120 & the HB C12 both use the 1/4" rear axle size for sure. Corally uses metric sizes on the rear axle.
For the front end, Serpent & HB both use the standard 1/8" front axle sizes and Corally a different system exept on the WC version with the Asso/CRC front end, there is uses the 1/8" front axles like we all know.
From the pictures of the Xray car I'd say they will go with the flow and use the standard 1/4" & 1/8" rear & front axles...
Every other brand like Associated, BMI, CRC (exept pro strut) use the 1/4" rear axle and 1/8" fronts...