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Motorized Bicycle General Discussion All topics regarding bicycles with engines.

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  #6531  
Old 11-28-2013, 12:52 AM
MEASURE TWICE MEASURE TWICE is offline
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Default Re: what did you do to your motorized bicycle today?

Since I replaced a set up pulleys with gears and chain that were part of a very low ratio for good torque up hill climbing, I no longer have that smallest 1.7 inch diameter pulley slipping.

I just got a large 28 tooth gear I ordered and intend to use it with an 18 tooth or a 13 tooth gear. This will get me back my low ratios of around 20:1 and 30:1 ratio.

Temporarily I only have two 18 tooth gears in place so that with two other belts and twin jackshafts gets 14:1 ratio.

I would really like to see it climb without needing as much run up speed when trail riding.

The smooth trail with slight grade in the photo is not the majority of what there is there to ride. I'll be back with better torque and using the sweet spot of the 3hp Briggs 4 stroke's power band next time out.

MT

http://motorbicycling.com/showthread...975#post527975 (the rough stuff trail riding)
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Last edited by MEASURE TWICE; 11-28-2013 at 12:56 AM.
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  #6532  
Old 11-28-2013, 07:23 AM
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Cruise Cruise is offline
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Default Re: what did you do to your motorized bicycle today?

Ready to now put some mileage on my new chopper, so put some road lights, speedo and mirror on it. Also fitted front fender with some gentle persuasion.
Nearly done running in. Still got a slight vibration issue but all else seems to be behaving.
Very comfy ride.
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  #6533  
Old 11-29-2013, 11:27 AM
BonusParts BonusParts is offline
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Default Re: what did you do to your motorized bicycle today?

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  #6534  
Old 11-29-2013, 11:40 AM
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mapbike mapbike is offline
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Default Re: what did you do to your motorized bicycle today?

Quote:
Originally Posted by BonusParts View Post
Nice pic...... 39mph is a nice cruise speed.

Is your bike a shifter bike or a single speedster?

I also like that speedometer you have, needing a new one myself.

Map
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  #6535  
Old 11-29-2013, 12:03 PM
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paintgun paintgun is offline
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Default Re: what did you do to your motorized bicycle today?

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Originally Posted by BonusParts View Post
Nice speedo. Gonna get one of those dual-pull brake levers. How well do they work?
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  #6536  
Old 11-30-2013, 05:05 AM
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Huffydavidson Huffydavidson is offline
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Default Re: what did you do to your motorized bicycle today?

They work very well. I love mine. Disc in front and V brakes in the rear on a dime.
Almost done with the LaJolla Race bike. Its 5am almost to get back to work on it.
I'll just close my eyes for a min.
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  #6537  
Old 11-30-2013, 05:52 AM
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paintgun paintgun is offline
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Default Re: what did you do to your motorized bicycle today?

Thank, Huff. I called the local bicycle shop yesterday and asked if they carried them. The guy told me he had never heard of such a thing. He didn't sound like he was the shiniest tool in the shed either. So go figure. Probably just get one off either ebay or SBP.
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  #6538  
Old 11-30-2013, 12:46 PM
BonusParts BonusParts is offline
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Default Re: what did you do to your motorized bicycle today?

Quote:
Originally Posted by mapbike View Post
Nice pic...... 39mph is a nice cruise speed.

Is your bike a shifter bike or a single speedster?

I also like that speedometer you have, needing a new one myself.

Map
single. 36t. shifters are for the weak of heart

Quote:
Originally Posted by paintgun View Post
Nice speedo. Gonna get one of those dual-pull brake levers. How well do they work?
supremely well for v brakes
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  #6539  
Old 11-30-2013, 01:03 PM
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paul paul is offline
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Default Re: what did you do to your motorized bicycle today?

I know I really liked my dual brake lever when I had them on my motorized bicycle.
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  #6540  
Old 11-30-2013, 08:49 PM
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Southgate Jonny Southgate Jonny is offline
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Join Date: May 2013
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Default Re: what did you do to your motorized bicycle today?

Installed a balanced lower w/a fresh 69cc top end and slant head (all Dax stuff). Made up an Opti 2 premix @ 80-1 (too esceered to go 100-1 for the break-in). Warmed her up and took off like a Scud! SMOOOOOOOOOOTH! Got up to about 27-30 mph @ a bit over 3/4 throttle but didn't want to take her any higher for now. Thing's gonna be a monster when she gets broken in!
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