The phenomenon of reversion which occurs in a NR compound when vulcanized using a conventional cure (CV) system is well known. Reversion leads to the impairment of vulcanizate properties such as modulus, compression set and heat generation. In this paper the effect of a new chemical 1,3 bis(citraconimidomethyl)benzene (BCI-MX) will be discussed with respect to its mechanism of action and applications, The use of this chemical will allow rubber compounders to take advantage of CV cure systems with regard to flex/fatigue properties whilst improving reversion resistance.