TYRE & WHEEL SIZES
http://sheldonbrown.com/tire-sizing.html#width
http://sheldonbrown.com/rim-sizing.html
http://sheldonbrown.com/tire-sizing.html
http://sheldonbrown.com/rim-sizing.html
http://en.wikipedia.org/wiki/Bicycle_tire
http://www.biketiresdirect.com/tire-size-chart-article
http://en.wikipedia.org/wiki/Bicycle_wheel
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630mm 27 x anything Older road bikes.
622mm 700C; 29inch Modern road bikes, hybrids, 29" mountain bikes.
584mm 26x1 1/2; 650B Some Raleigh and Schwinn mountain bikes, French utility and touring bikes.
559mm 26x1.0 to 26x2.5 Most modern mountain bikes and cruisers
The diameter of 650B is 6.1% smaller than 700C/29", and 4.5% larger than 26". See: Percent increase or decrease calculator
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Why 650B? The people behind the 650B movement claim that with 650B tires you get all of the same advantages of the 29" movement (lower rolling resistance, better traction, smoother ride, etc.) with less of the disadvantages (geometry limitations, toe clearance issues, higher center of gravity, suspension travel limitations).
http://reviews.mtbr.com/650b-bike
http://www.bicycling.com/tags/650b-mountain-bikes
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GRAVEL
http://www.velocipedesalon.com/forum/f2/best-gravel-tire-road-bike-20480.html
Panaracer Ruffy Tuffy http://www.rivbike.com/product-p/t104.htm
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RIM AND TIRE SIZE ISSUES
http://www.bikeforums.net/archive/index.php/t-554845.html
http://www.bikeforums.net/archive/index.php/t-535426.html
http://sheldonbrown.com/tire-sizing.html#width
REPLACING A BICYCLE WHEEL
http://www.ehow.com/video_2363060_replacing-bicycle-wheel-horizontal-dropout.html
http://www.youtube.com/watch?v=A7ER02-zr54
http://www.robertscycle.com/qr.html
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AXLES & DROPOUTS
correct placement of axle in rear dropouts; Axle position in the dropout; horizontal rear dropouts
How far forward in the dropout can you safely set the axle?
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Axle position in the dropout affects the following characteristics:
1. Handling: Moving the wheel forward shortens the wheelbase, making the bicycle more nimble. It also shortens the effective rear triangle, making it slightly stiffer and more responsive to pedal input.
2. Chain angle: Moving the wheel forward increases chain angle, increasing chain, cog and chainring wear when the chain is crossed-over, particularly when using stiff, bush style chains.
3. Gear capacity: Moving the axle farther back allows you run a slightly larger cog.
4. Chain wrap: Moving the axle back wraps more chain around the cog and decreases the probability of skipping, particularly with worn chain and/or cogs.
5. Chain Gap: This is the biggy. It directly affects derailleur performance. It’s the distance along the chain from were it contacts the cog to where it contacts the jockey pulley. Derailleurs with long chain gaps tend to be late shifting, that is they require more effort and overshifting with the lever in order to execute the shift. Derailleurs with short chain gaps shift early.
Optimum chain gap depends on the chain and cog type. Stiff chains and pointed cog teeth require long chain gaps, usually around 7cm. Most vintage bush type chains and flat top cogs requite about 5cm chain gap. Bushingless chains and flat top cogs require about 4cm chain gap.
Proper chain gap is critical, particularly for optimum performance of indexed derailleurs and is the prime reason that vertical dropouts dominate indexed bicycles. The manufacturer’s don’t want you to screw things up by changing the axle position! Proper chain gap for indexed systems is about 4cm.
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The procedure is to sit on the ground, put both feet on pedals, push forward with feet, pull the rear wheel back with one hand, and tighten the axle nuts with the other hand.
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dropout adjustment screws; rear dropout adjusters; alignment stop
http://www.bikeforums.net/showthread.php/792251-Can-someone-tell-me-what-this-thingy-in-my-dropout-is-for
http://sheldonbrown.com/frame-spacing.html
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http://www.loosescrews.com/index.cgi
QUICK RELEASE
how to properly use quick release
http://www.bicyclinglife.com/HowTo/UseAQuickRelease.htm
http://www.ehow.com/video_2363060_replacing-bicycle-wheel-horizontal-dropout.html
http://www.youtube.com/watch?v=ZHlQSqK4Efs
http://www.robertscycle.com/qr.html