I think Grubee motors are probably history AT BIKEBERRY, why they keep them listed on their website is a mystery to me. Or maybe not, even though they know they wont be getting any Grubee kits they keep them listed, probably because they know people will search for Grubee, find BikeBerry, and end up buying something else that they may stock.
OTHER retailers have Grubee kits in stock, and will be getting new Grubee kits including the Super Rat this summer and possibly Star Fires as well. BikeBerry took my money for 2 Grubee kits last spring, their website said IN STOCK, I called to verify stock, getting the green light from both I ordered. Order went through as IN STOCK, soon there after I got a BACKORDER email. They strung me along week after week for one month, finally I demanded a refund which they agreed to provide. After waiting for the PayPal refund for several days and not seeing it I phoned them to inquire, they finally processed the refund while I was on the phone with them. I wonder if I hadn't followed up what would have happened.
Anyway, if you want a Grubee kit check out other retailers, GasBike.net has sprung for the EPA approval on the Super Rat so they will be the sole retailer for this new line of Grubee kits when they arrive this summer...