Originally posted by STi
Thanks for the info, nippon. 
Does anyone know exactly what's different between the E-Spec and R-Spec?
With so very little info from OS, I'm having a hard time deciding between these two and the TR-T. 
E-Spec, means it is made to comform EFRA rules
R-Spec, means it is made to comform ROAR rules
So if one reads the 2.1cc engine rules for each sanctioning body, you get to know the differences between engines.
Basically the crank rules are different from one model to the other, beeing the E-Spec model more restricted than the R-Spec.
AFM