Hey,
I currently have a 21in Gary Fisher Aluminum Mountain bike. It has been converted to a rigid single speed with; Surly 1x1 fork, Avid bb7 disc breaks, Continental Town & Country Tires, Sun Rhino Light Rims, and Shimano Disc Hubs .
Recently, I have decided that a motor "needs" to be added for a new project. I purchased a Grubee 66cc/80cc GT2 build kit online and the "universal mounting brackets." My hope is that the over sized down tube will not be an issue when mounting the engine. I also bought a King 34t sprocket to attach to the disc mount on my rear hub. Realistically I can't imagine this being as simple as a straight "bolt on build," but I remain optimistic. I have a lot of experience with bicycle mechanics, but zero when it comes to engines.
Does anyone have any suggestions or comments about; engine compatibility with the frame, chain alignment, the selected gear ratio I have gone with (my thought was that a smaller sprocket would eliminate issues with chain clearance). Also, Tomicog makes fixed gear cogs that bolt directly onto a disc brake hub, but the largest size available is a 20 tooth. Is this way to small for a 66cc motor and a 175 lb rider?
Thanks,
Paul
I currently have a 21in Gary Fisher Aluminum Mountain bike. It has been converted to a rigid single speed with; Surly 1x1 fork, Avid bb7 disc breaks, Continental Town & Country Tires, Sun Rhino Light Rims, and Shimano Disc Hubs .
Recently, I have decided that a motor "needs" to be added for a new project. I purchased a Grubee 66cc/80cc GT2 build kit online and the "universal mounting brackets." My hope is that the over sized down tube will not be an issue when mounting the engine. I also bought a King 34t sprocket to attach to the disc mount on my rear hub. Realistically I can't imagine this being as simple as a straight "bolt on build," but I remain optimistic. I have a lot of experience with bicycle mechanics, but zero when it comes to engines.
Does anyone have any suggestions or comments about; engine compatibility with the frame, chain alignment, the selected gear ratio I have gone with (my thought was that a smaller sprocket would eliminate issues with chain clearance). Also, Tomicog makes fixed gear cogs that bolt directly onto a disc brake hub, but the largest size available is a 20 tooth. Is this way to small for a 66cc motor and a 175 lb rider?
Thanks,
Paul
Attachments
-
644.9 KB Views: 1,404
-
646.2 KB Views: 1,225
Last edited: