I think the rear needs fixing down somehow to stop it bouncing. I'm thinking something to screw into the underside of the mono section at it has a threaded bolt hole. Then maybe cable tie to the hole in the cut-down subframe where the old seat lock was. What have others done?
On the mono, there is a small stub thing that screws into the aforementioned thread. This then goes into a rubber grommet in the subframe tostop the tailpiece bouncing around.
I bought that and the rubber grommet but on a cut down Bip subframe it's miles off. I need a small match box size of stiff metal/plastic with no flex and 2 holes I'm thinking. 1 hole for the stub screw thing then the other hole for a cable tie.
Could you not perhaps make a new grommet holder from some ally and somehow “bridge” it so that it interfaces with the stub thing on the tail? Alternative...strong velcro? My trackbike has a carbon tail with no provision for the stub thing. To make it sit close to the exhaust I put a couple of 10mm-ish spacers between the seatpad and the tail. When the seat is bolted down, the tail is forced down and rests on a rubber bumper on the exhaust.
I did the same a cable tie round the subframe (each side looped) Then a tie on the steel plug on the mono seat unit that fits into the rubber bung on a mono subframe. Then connect with another and pull tight it also pulls the seat unit down lower at the back so it looks better. I can take some photos if needed
That was my thought, but in the current climate I didn't want to be provocative. I winced at the bodging... That's the right way to do it.
If you've got a modified subframe and a standard tail fairing then you have choices: You could fabricate and weld in place a plate for your modified subframe that sits in the right place for the fairing with the right size hole in it to fit the standard rubber grommet to engage the fairing mount. Get that painted up and nobody will be any the wiser and you won't have bodged it. Otherwise, cough up for the right parts.
Lump of wood taped to the subframe so when the seat is fitted it adds the tension needed. Lightweight and probably free
Back in the 90’s we repaired a damaged wing fairing on a 4 engine commercial airliner with a bit of wood and some filler...
