For those still needing a passenger rider backrest riser and having a problem since Steve's are all gone, there may still be a great alternative. I got an adjustable riser from Storm Lake Honda in Storm Lake, Iowa. It's easily adjustable from from low (about a half inch higher than stock) to as high as you'd ever want to go. Powder coated black. IMHO, F6B backrests look a lot better in the low position.This riser allows the low position but still allows me to raise it for a passenger. Passengers love the comfort of being to adjust to whatever height fits. I think it may have been a limited production item. I paid $150, well worth it for the adjustability in a good looking riser. Haven't seen them advertised so they may be gone. Or, since they weren't being marketed heavily, maybe there's a price break now. www.stormlakehonda.com They should have pictures too.