sorry for the late reply, I just did a google search and found a few online shops.
http://www.wats-motor.com/eshop/product_...cts_id/274
https://www.treatland.tv/dual-round-tail...icense.htm
or you can make custom plate and bolt 2 of these on afterwards:
http://www.polo-motorrad.de/de/mini-ruck...ign=criteo
unfortunately I didnt found the link for those specific dual tail lights from my previous post, I lost the HD of my laptop, so I can't do a google search...but I remember its from ebay...
I initially got the inspiration for round tail lights from this German custom shop for Triumph Thruxton bikes...a bike where Honda can be jealous from when talking about aftermarket parts
http://www.classicbike-raisch.de/html/body_parts.html
EDIT: I found the ebay link of that specific LED round tail light
[url=http://www.ebay.com/itm/LED-Tail-Light-License-Plate-Holder-Bracket-For-Suzuki-Dual-Sport-ATV-Cafe-Racer-/380897474967?pt=Motorcycles_Parts_Accessories&hash=item58af423997&vxp=mtr]http://www.ebay.com/itm/LED-Tail-Light-L...97&vxp=mtr