[1] [2] Journalist Peter Egan defines the sport tourer as a "café racer that doesn't hurt your wrists and a touring bike that doesn't feel like a tank," and identified the R100RS as the first example he owned.
[3] Unlike a sport model, a sport touring model will typically have more wind protection with larger fairings and an adjustable windscreen, a transmission with lower gearing, a shaft drive instead of chain drive, side and/or rear pannier storage systems, a larger alternator for more accessories, heated handlebar grips, remotely adjustable headlights, a larger fuel tank for increased range, and a more upright seating position.
Unlike a full touring model, a sport tourer will typically have more ride height ground clearance for better cornering, less stowage, lower weight, a less relaxed seating position, less room for the rear passenger, and higher overall performance.
[4] When designing a sport tourer, some manufacturers make economies by using an existing engine, technology and tooling from their recent sport bikes, rather than creating a dedicated engine design from scratch.
Rider magazine noted in 2013 that the line between sportbikes and touring motorcycles was becoming blurred "with [touring] horsepower rising higher and higher and lists of standard [sportbike] features growing longer and longer".