I have a almost knew Altrider rear Luggage rack for sale. I have it mounted for about 200 miles and now my Kids are getting me a Yamaha Top Box for Father's Day. Well Altrider doesn't make an adapter for the OEM Top Box. So Sell I must... $200 shipped within the US and if someone North of the border is interested we can discuss it Aye? PM me if interested... I also take pay Pal...
