http://www.carcraft.com/techarticles/3636/
http://www.high-impact.net/wheels/backspacingillustration.htm
http://www.custom-wheels-n-rims.com/WheelTech/wheel-backspace.htm
http://www.rsracing.com/tech-wheel.html#backspace
http://www.kormanfastbmw.com/ttiredia.htm
http://www.rsracing.com/rscatalog/prod-index.asp
http://www.rsracing.com/glossary.htm#patch
http://www.miata.net/garage/tirecalc.html
http://www.geocities.com/steve.knickerbocker/tires/tirediam.htm
http://www.dougrippie.com/drm/brake_conversions.htm#C4 Corvette DRM Wilwood Brake Kit
"Backspace is the distance from a wheel's mounting surface to the back edge of the wheel in inches. By "back" we mean the brake side of the wheel. Offset measures the distance from the mounting surface of the wheel to the centerline of the wheel, and it is often indicated in millimeters. If the mounting surface is located closer to the street side of a wheel, then the offset is positive. If it is located closer to the brake side of wheel, then the offset is negative. If it is in line with the center of the wheel, then the offset is zero."
FAQ: What is wheel backspacing and offset?
Q: What is wheel backspacing?
A:The distance from the inner edge of the wheel to the hub mount pad. Note: Sometimes the distance from the outer edge of the wheel to the hub mount pad is referred erroneously to as offset. BE CAREFUL!
Q:What is wheel offset?
A: It is the distance from the centerline to the hub mount pad (where the wheel attaches to the hub). POSITIVE OFFSET - The hub-mounting surface is toward the front or wheel side of the wheel. NEGATIVE OFFSET - The hub mounting surface is toward the back or brake side of the wheels centerline.
http://www.mickeythompsontires.com/tech.php?bulletin=s10
http://www.tirerack.com/wheels/tech/techpage.jsp?techid=101
http://www.chevellestuff.com/tech/wheel_offset.htm
http://www.truckinweb.com/tech/suspension/0706tr_wheel_backspace_and_offset/index.html
http://www.high-impact.net/wheels/backspacingillustration.htm
http://www.custom-wheels-n-rims.com/WheelTech/wheel-backspace.htm
http://www.rsracing.com/tech-wheel.html#backspace
http://www.kormanfastbmw.com/ttiredia.htm
http://www.rsracing.com/rscatalog/prod-index.asp
http://www.rsracing.com/glossary.htm#patch
http://www.miata.net/garage/tirecalc.html
http://www.geocities.com/steve.knickerbocker/tires/tirediam.htm
http://www.dougrippie.com/drm/brake_conversions.htm#C4 Corvette DRM Wilwood Brake Kit
"Backspace is the distance from a wheel's mounting surface to the back edge of the wheel in inches. By "back" we mean the brake side of the wheel. Offset measures the distance from the mounting surface of the wheel to the centerline of the wheel, and it is often indicated in millimeters. If the mounting surface is located closer to the street side of a wheel, then the offset is positive. If it is located closer to the brake side of wheel, then the offset is negative. If it is in line with the center of the wheel, then the offset is zero."
FAQ: What is wheel backspacing and offset?
Q: What is wheel backspacing?
A:The distance from the inner edge of the wheel to the hub mount pad. Note: Sometimes the distance from the outer edge of the wheel to the hub mount pad is referred erroneously to as offset. BE CAREFUL!
Q:What is wheel offset?
A: It is the distance from the centerline to the hub mount pad (where the wheel attaches to the hub). POSITIVE OFFSET - The hub-mounting surface is toward the front or wheel side of the wheel. NEGATIVE OFFSET - The hub mounting surface is toward the back or brake side of the wheels centerline.
http://www.mickeythompsontires.com/tech.php?bulletin=s10
http://www.tirerack.com/wheels/tech/techpage.jsp?techid=101
http://www.chevellestuff.com/tech/wheel_offset.htm
http://www.truckinweb.com/tech/suspension/0706tr_wheel_backspace_and_offset/index.html