Take the seat and rear subframe off, stick a sprung saddle on and bobs your Uncle. 

Take the silencer off and suddenly you have slash back type screaming seagull-esk type exhaust


Just need to glue a brake light on the back of the seat and stick a number plate somewhere, maybe a rear hugger?
To keep the bike MOTed simply replace the original rear sub frame, seat and silencer and Fanny's your Aunt

Yes I am taking the P*ss

Take the silencer off and suddenly you have slash back type screaming seagull-esk type exhaust

Just need to glue a brake light on the back of the seat and stick a number plate somewhere, maybe a rear hugger?
To keep the bike MOTed simply replace the original rear sub frame, seat and silencer and Fanny's your Aunt
Yes I am taking the P*ss

No Mystics will suffer long term harm if I decide to give it a go 