For unknown reasons, Triumph made the R3R with the rear axle .5 inch lower than the front. WTF?
This is very counter-productive to good handling in the twisties.
I reduced my trail by lifting the rear axle .5 inch with the ExedraMax 240/55R16 and lowering the front axle .5 inch with a 140/75R17 front tire.
Results are astounding and are verified by MANY other Rocketeers.
I have a short 29 inch inseam so I remained at the OEM height of 12.5 inch with my 444s.