I also have the full guard. Recently did a tip through Spain and Portugal 2 up and rode through a storm of "biblical" rain. The full guard worked perfectly, my better half was quite dry (at the back anyway!) and the bike picked up no debris under the seat. It's well made a pretty easy to fit, I have the gloss one and I think it looks much better than the cheap plastic half guard that Triumph fit.
HTH
Steve
Has anyone tried this full rear fender/mudguard from Trik Custom Motorcycle Parts? I'm thinking this would help tremendously with how much mud and road grime there is from the exposed tire. I wish they had some pictures from other angles.
TRIK Custom Motorcycle Parts Full Rear Mudguard Gloss Black Gel Coat [FRM001GB] - Full Rear Mudguard for the 202x Triumph Rocket 3 (all models) finished in Gloss Black Gel Coat. Completely replaces the OEM Hugger and rear guard. Comes complete with inner cable housing matching the protection of...
It beats me why someone hasn't designed and built an extended version of the rear guard, the red tail end section in this photo for instance. It would achieve the same outcome as the product in the picture and give the bike a longer look.