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High Performance Bicycle Engine Tips We all want our bicycle engines to push our bikes faster. Get exclusive engine modification tips and suggestions from us.

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  #1  
Old 01-21-2008, 11:34 PM
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Andyinchville1 Andyinchville1 is offline
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Default motor bicycle Wheel balancing

HI All,

Never really thought about wheel balance until I was looking at one of my bikes (engine free indoor bike) and noticed it had one of those large spoke mounted reflectors in the wheel.

Just out of curiosity I took off that reflector and weighed it....Turns out it weighed nearly 3 ounces!.....And since it was located fairly close to the rim itself I thought that was a fairly heavy wight to be so far off center.....In an attempt to partially offset some of the weight of the reflector, I did take the trouble to remount it opposite of the valve stem (every bit helps huh?)..While I have not yet personally taken the time to see how far off balance the wheel is (I will when it warms up a little since all my motorized bikes live outside in the shed Brrrr)....I was wondering if any of you out there actually too the time to balance your wheels/tires?.....In thinking about it I will probably do so
shortly because as we approach top speeds of 35+ MPH it may become important (I'll probably use stick on automotive balance weights).

What do you think?

Andrew
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  #2  
Old 01-22-2008, 12:12 AM
Pete Pete is offline
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Default Re: Wheel balancing

Balancing will reduce vibration at speeds over 28mph in my experience.

However, I build my own wheels to be true to + or - .005" total run out and use quality tires with reflective stripes so no heavy reflectors are used. Balance has not been an issue. I use Slime tubes f&r and on the rear a Mr. Tuffy tire liner. My top speed is 30mph.

Mounting the reflector about halfway between rim and hub makes a real improvement. Adding another oppisite also helps. Presta valve stems are lighter than Shrader type.
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Old 01-22-2008, 06:20 PM
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Andyinchville1 Andyinchville1 is offline
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Default Re: Wheel balancing

HI Pete,

Good idea about getting another reflector to balance out the original one.....Since it is an older bike I'll have to look for a similar one or heck I may pop for 4 new ones!....Supposed to be about 40 tomorrow so I may come out of hibernation and balance all the bikes.

Andrew
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Old 01-24-2008, 04:57 PM
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Bikeguy Joe Bikeguy Joe is offline
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Default Re: Wheel balancing

I always balance my wheels by wrapping the spokes near the rim with solder. I made a balancing table for the wheels.
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Old 01-24-2008, 04:58 PM
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Bikeguy Joe Bikeguy Joe is offline
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Default Re: Wheel balancing

Oh yeah, you can buy stick on lead weights at the sporting good store (used for golf clubs I guess).
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Old 01-27-2008, 06:35 AM
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paul paul is offline
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Default Re: Wheel balancing

another thing to put on the list that needs to be done. a lot of times things are overlooked when trying to get the best performance out of you motorized bicycle
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Old 01-27-2008, 06:59 AM
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Bikeguy Joe Bikeguy Joe is offline
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Default Re: Wheel balancing

How about putting zip ties at all spoke crosses?
Works nicely to "firm up" the wheels.
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