Did my mod today with the file box, i don't ride 2 up since my girl has her own bike so I went with 5 inches for the box and yet im still sticking out below thw tail by an inch or so. It doesn't look terrible since the box was a textured satin black, pretty much matches the stock plastic under there. My real question is if you guys are cutting them short enough to not poke out below, how are you gaining any room in the trunk over stock? I'm not lowered so the 5 inches gives me plenty of travel room under the trunk and I can stick a gallon milk jug in there no problem.
The angle is wrong.
The front of the can(towards the front of the bike) needs to go down.
And then the rear can come up.
Some of the cans will push into the cut out tail section and stay there, just so you can position it and step and look at it.
If yours won't, you just need and extra set of hands.
But you can hold the can in place from beneath at arm's reach, and get a good idea of where you need to be.
I had a template with dimensions, but I don't know where it is.
Infinate Reality's post above has the sizes though.
If you can fit a milk jug, then there's a 99% chance the can will rub the tire over bumps with a passenger.
I cut mine down to where I could put two 1 liter water bottles side by side, and had over an inch above them(so whatever that is
), but if I remember correctly it was 4.5" deep.
I never had a problem with it rubbing with a passenger after that.