For quite some time I have been using the Studds Vault Box mounted as tail box. This was done via a custom built frame which holds the box to the back of the seat. The frame is mounted on to the bolting points where the backrest is attached to the seat. The box has decent capacity, holds my rain gear and an extra pair of gloves easily. Studds Luggage Options :- http://www.studds.com/product.aspx?su... BlueGarrage Dragon Fly Side Box:- http://bluegarage.in/Online-Automobil... Royal Enfield Bullet Electra 350 CC Studds Vault Box mounted as Tail Box