tom80
New Member
I have just finished first mb. powered by cy23hr 2 hp 10000, red line 12000
friction drive. Unit I made is attached to seat post. This is a very clean install and looks like it came with bike. I basically made a go-ped that's attached to seat post. go-ped has been making friction drive scooters since 1985. My purpose for rc engine was the small size and good power also huge after-market selection of parts. I use my mountain bike for trail riding and my local park prohibits the use of motors. My build was based around good looks ease of use and quick removal for trail riding. I only have one bar from seat post to hold unit. Black motor and black cover for 1.5 liter gas tank. I made it all black so it is not so noticeable. This unit has no clutch so it works like a go-ped sport. I made a sleeve for seat post and welded square tubing to it and a box section made to hold motor and gas tank. I threw bolted sleeve on seat tube in place and installed a bolt in the down tube of bicycle. the bolt in down tube is there to stop motor twisting left to right. The seat post has a channel cut in it to allow movement up and down but not twist. I purchased the motor, gas tank, black tank cover, Third bearing support, .750 black magic spindle and mounting hardware from Dave's discount motor sports for 230.00. I bought my mountain bike ( giant yukon) two years ago for 650.00. I have bought another seat post and seat. To remove the motor all I have to do is disconnect throttle cable and release quick release and slide seat up and out. install spare seat and post and my bike is stock again except for throttle lever. This works well for bart and trail riding. I can keep motor and seat in backpack or leave at home. The black magic spindle works very well for the 1.5 tire that I run for commuting. This spindle has channels cut lengthwise and grips very well with not much pressure. I have not had any problems yet and this set up is good for 25 mph. 60 miles on 1.5 liter tank. The bracket i made was with just hand grinder hand drill sawzall and welder. I am a machinist by trade but did not use any machinery and took about 6 hours to complete mount. Mount was then coated with roll on bed liner. I will post long term use. The only problems I thing I may encounter is a bent seat post? We will see. The mount is close to the frame so hopefully it will not bend.
friction drive. Unit I made is attached to seat post. This is a very clean install and looks like it came with bike. I basically made a go-ped that's attached to seat post. go-ped has been making friction drive scooters since 1985. My purpose for rc engine was the small size and good power also huge after-market selection of parts. I use my mountain bike for trail riding and my local park prohibits the use of motors. My build was based around good looks ease of use and quick removal for trail riding. I only have one bar from seat post to hold unit. Black motor and black cover for 1.5 liter gas tank. I made it all black so it is not so noticeable. This unit has no clutch so it works like a go-ped sport. I made a sleeve for seat post and welded square tubing to it and a box section made to hold motor and gas tank. I threw bolted sleeve on seat tube in place and installed a bolt in the down tube of bicycle. the bolt in down tube is there to stop motor twisting left to right. The seat post has a channel cut in it to allow movement up and down but not twist. I purchased the motor, gas tank, black tank cover, Third bearing support, .750 black magic spindle and mounting hardware from Dave's discount motor sports for 230.00. I bought my mountain bike ( giant yukon) two years ago for 650.00. I have bought another seat post and seat. To remove the motor all I have to do is disconnect throttle cable and release quick release and slide seat up and out. install spare seat and post and my bike is stock again except for throttle lever. This works well for bart and trail riding. I can keep motor and seat in backpack or leave at home. The black magic spindle works very well for the 1.5 tire that I run for commuting. This spindle has channels cut lengthwise and grips very well with not much pressure. I have not had any problems yet and this set up is good for 25 mph. 60 miles on 1.5 liter tank. The bracket i made was with just hand grinder hand drill sawzall and welder. I am a machinist by trade but did not use any machinery and took about 6 hours to complete mount. Mount was then coated with roll on bed liner. I will post long term use. The only problems I thing I may encounter is a bent seat post? We will see. The mount is close to the frame so hopefully it will not bend.
