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Motorized Mountain Bikes and Road Bikes Motorize a full suspension mountain bike to get a smother ride or for a little more speed try motorized road bicycles. This section is for sharing ideas on motorizing your mountain and road bikes.

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  #11  
Old 06-29-2016, 09:36 PM
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totalnewb totalnewb is offline
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Default Re: road bike mashup

Does anyone have experience with the 54 tooth sprocket on a road bike? I'm thinking that because the tire is large diameter a larger sprocket is needed anyhow. I don't need to go as fast as this bike is going now anyhow.
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  #12  
Old 07-01-2016, 05:06 PM
Rudz Rudz is offline
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Default Re: road bike mashup

54 will do wheelies and climb mountains. Would try a 48 first. It might not seem like much but only a few teeth make a huge difference.

16-1 break in is too much oil. 24-2 for the first two tanks then 32-1 after that. Personally I use 91 octane and Opti 2 at 70-1 but that's me.

The engine runs better after its been broken in, usually at least 100 miles. After that you ca start playing with the carb and jets ect.
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  #13  
Old 07-01-2016, 09:41 PM
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totalnewb totalnewb is offline
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Default Re: road bike mashup

This thing is running great now during break-in I'm excited to see how a better oil to gas ratio will improve performance. I'm easily impressed but anyhow. The current sprocket is way to fast to get into the powerband takes me outside of my maneuverability zone. This would mean cruzing on the straight and flat are all I can do under power. I wouldn't mind having different sprockets I might buy them both. Thanks for the input.
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  #14  
Old 07-07-2016, 05:09 PM
vatoed vatoed is offline
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Default Re: road bike mashup

I'm fairly new to this as well but I have had a couple months and a few builds. That jerking will probably go away as the engine starts breaking in. I also noticed you'll get a fuller low end speed once it's broken in as well. Things are tight and she does not like going slow at first but once she loosens up its a whole new engine.
The stock 44 tooth sprocket has been a very good choice on the few bikes we've built. I think you should wait to get your engine broken in before changing it. You will also get used to the speed as time passes. Run a couple, three gallons through it.
Get yourself a good helmet and gloves. Be safe.
Cheers!!
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  #15  
Old 07-07-2016, 05:42 PM
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totalnewb totalnewb is offline
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Default Re: road bike mashup

Nice response, you have really addressed my concerns directly. I've been putting some miles on my rig and starting to notice exactly what you are saying. I'm starting to see a bit more smooth operation and a touch more power in the lower range. The trick is that I live in a hilly area and I have another bike that I really want to put the 54 tooth on. When I have all that I need I'm going to move the kit. My parents have a small property and I'd like to take it off road a bit. Not through the mud or anything but perhaps through the gravel and on hard packed dirt. I kind of wonder if I put a rack on the back and pegs on the rear wheel, if I might be able to pull a passenger. I'm dreaming I know but I do that from time to time.
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  #16  
Old 07-08-2016, 09:52 PM
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Default Re: road bike mashup

I hope I don't sound too sarcastic. I really do appreciate a good response. I've never posted so much on a forum before, but this is really fun. The bike is doing great, but I still feel like a larger sprocket is in my future.
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  #17  
Old 07-14-2016, 05:22 PM
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QuietRiot522 QuietRiot522 is offline
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Default Re: road bike mashup

Im curious, have you considered a centrifugal clutch? I like mine alot and I wonder now how I got along without it haha. I like it cause I just have to kick off from a stop with my feet and pedal a little while laying on the gas, off ye go!

I have a 48t sprocket with the 29er tires and I can climb a 30% grade hill that's about 1.5 miles long I think? Its pretty knarly for a little 66cc with 180lbs + the bike itself. I maintain 25mph up the hill and with the 48t I get up to just over 30mph according to my crappy speedometer. I didn't check what size wheels you have on your bike but if they are smaller than 29s then I believe you will have even more torque applied to the ground. The ratio with a smaller wheel changes. What Im trying to get at is if you go with a 50+ tooth sprocket you'll climb Everest but I believe youll loose alot of speed. Just my .02 the 48t seems to be a pretty good sweet spot for torque/acceleration, decent top speed.
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  #18  
Old 07-14-2016, 05:44 PM
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totalnewb totalnewb is offline
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Default Re: road bike mashup

I like the centrifugal clutch but I also love the manual clutch. I have bad memories of pulling forever to start a weedeater. I agree that the 48 tooth would be the ideal sprocket for speed and power. Sometimes I want to go slower than I think most people will want to go. I plan on having a set of sprockets including more than what I need. I really do appreciate the input.
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  #19  
Old 07-14-2016, 05:50 PM
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QuietRiot522 QuietRiot522 is offline
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Default Re: road bike mashup

Quote:
Originally Posted by totalnewb View Post
I like the centrifugal clutch but I also love the manual clutch. I have bad memories of pulling forever to start a weedeater. I agree that the 48 tooth would be the ideal sprocket for speed and power. Sometimes I want to go slower than I think most people will want to go. I plan on having a set of sprockets including more than what I need. I really do appreciate the input.
Yeah, Ive heard that the pull starts for these kits are garbage too. However most of the centrifugal clutches for these kits come with a one way bearing so you can bump start. I don't like massive speed either, not on a bicycle anyway haha.
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  #20  
Old 07-14-2016, 06:02 PM
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totalnewb totalnewb is offline
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Default Re: road bike mashup

That is awesome, bump start for centrifugal clutch.
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