Trek Bicycle Corporation Design (WSD) bicycle and accessories. WSD products are designed to fit female riders, and feature sizing and proportions appropriate for women. In October 2001, Trek introduced a custom bike program named Project One, which gave customers the opportunity to customize their Trek bike by selecting the bike's paint scheme and component mix. Hoping to expand into a new market segment, Trek introduced Trek Travel in December 2002, a provider of luxury and performance cycling vacations in Europe and North America. Trek Travel operated as a wholly owned subsidiary of Trek Bicycle until January 2007, when Trek spun off its interests
Bicycle and motorcycle geometry axis intersects the ground. The measurement is considered "positive" if the front wheel ground contact point is behind (towards the rear of the bike) the steering axis intersection with the ground. Most bikes have positive trail, though a few, such as the two-mass-skate bicycle and the Python Lowracer have negative trail. Trail is often cited as an important determinant of bicycle handling characteristics, and is sometimes listed in bicycle manufacturers' geometry data, although Wilson and Papodopoulos argue that mechanical trail may be a more important and informative variable, although they both describe very nearly the same thing. Trail is a