Trail braking. Trail braking is a motorcycle riding and driving technique where the brakes are used beyond the entrance to a turn and are gradually released up to the point of apex.
Allowable Load Reference Tables. for Better HeaderÂ® Beam Selection. Beam spans are defined as follows: Simple span dimensions are measured from the inside face of the support and Multiple span dimensions are measured from the inside of the face of your exterior support to the center line of the interior support.
span. 1  a unit of linear measure equal to nine inches: originally based on the distance between the tips of a man's extended thumb and little finger. 2  the full amount or extent between any two limits. 3  a part between two supports: a bridge of four spans. 4  wingspan. 5  Origin of span.