Running fat tires?

right now I run 2.125 with a #41 machine chain. Yeah it's an issue with one resolve and that's to run 1.95s. Takes from the look but avoids the hash mark the chain will cut in. Because I don't use tensioners I prefer the big chain - it provides the sway forgiveness necessary (wide link)dance1 in a relaxed state..
 
The largest tires I have on a motorized bicycle are 26x2.125`s on my cruiser, and there's about 1/8" clearance from sidewall to chain. Anything more than that and you definately need to get creative.
 
Using a rear tire fatter than 2.125 will require you to mount the engine offset to the left to avoid chain rub. That's what they do on OCC choppers.
 
wheelbender6 said:
Using a rear tire fatter than 2.125 will require you to mount the engine offset to the left to avoid chain rub. That's what they do on OCC choppers.
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Yeah that's not practical on most bike frames. Your gonna reach a point in the frames design where the engine needs to be in a certain place and that is that. unless your a fabricator with frame jigs and a welder. better to look for a diff frame or more narrow tire wuntya think?
 
CTripps said:
The largest tires I have on a motorized bicycle are 26x2.125`s on my cruiser, and there's about 1/8" clearance from sidewall to chain. Anything more than that and you definately need to get creative.
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What you got is good! MTN bikes can be more challenging.dance1
 
allen standley said:
What you got is good! MTN bikes can be more challenging.dance1
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Both the MTN bikes in the garage have narrower tires, actually, 26x1.75(F), x1.95(R) on Harley59's and a pair of 26x1.95's on my beast. I'm thinking of swapping the knobby front off for a street tire, just haven't had the need to yet.
 
I sound like a hot air balloon when I ride- I "burst" the motor on, and it stays on during any long stretch
but when I'm in a residental area with lots of stops or cross traffic- I'm burstin on and off all the time-
the 1 1/8 and 1 1/4" tires will roll a half mile if I'm not pushing a headwind.
I like to roll up to a stop at "cycling speed" so I'm not wearing out the brake pads too.
very pleasant- long noisless rolls- periods almost like the old cyclin'
the motor's cooling down a bit too, and the gas mileage must be ridiculous
probably 200 mpg.

I was just thinkin yesterday they ought to sell a little urban electric car with skinny wheels that freewheels and you could power off and coast at speed.
 
CTripps said:
The largest tires I have on a motorized bicycle are 26x2.125`s on my cruiser, and there's about 1/8" clearance from sidewall to chain. Anything more than that and you definately need to get creative.
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That's the size I'm running on mine with about the same amount of clearance.
 
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