A successful motorcycle 
                    racing team relies on many things: well-sorted bikes, for a 
                    start; talented riders; skilled and dedicated mechanics; a 
                    strong team ethos; and information. Lots and lots of 
                    information.
                    How the team analyses 
                    and uses that information - known as data-logging - can 
                    often mean the difference of a few precious tenths of a 
                    second per lap; and that, in turn, can mean the difference 
                    between victory and the almost unbearable alternative.
                    The Winston Ten Kate 
                    Honda team takes its information gathering very seriously 
                    and uses it in conjunction with rider feedback to make 
                    crucial performance decisions.
                    Peter Bom looks after 
                    all the necessary hardware - sensors, wiring, laptop 
                    computers - and the Superbike side of the garage while 
                    Gerard van Laar develops chassis programs and has 
                    responsibility for Supersport data-logging.
                    The team's Honda 
                    machines carry more than a dozen sensors all over the bike, 
                    measuring wheel speed, water and oil temperature, battery 
                    voltage, suspension, rpm, throttle position, acceleration, 
                    deceleration, clutch and brake pressure, gear selection, 
                    etc.
                    The data gathered during 
                    each outing is stored on a hard disk on the bike and 
                    downloaded as soon as the rider returns to the pit box.
                    Because there is so much 
                    information to digest, it is separated into channels and 
                    then it's up to Peter and Gerard to interpret it and convey 
                    it to the riders and their mechanics.
                    "There's only so much 
                    you can conclude from the data," says Peter, "no matter how 
                    many sensors you have on the bike. That's because there are 
                    a lot of grey areas - for a start, you have a 70kg rider 
                    moving around on top, compensating for all kinds of things 
                    that you can't simulate on a computer."
                    Peter reckons the riders 
                    can even be too talented at times: "At this 
                    level, they can sometimes be riding around a problem without 
                    even being aware of it. For example, if the front suspension 
                    is too soft, they might subconsciously brake less 
                    aggressively to compensate."
                    For all that though, the 
                    riders remain the primary source of information about how 
                    the bike is behaving and the data is used to corroborate 
                    their feedback.
                    Peter continues: "These 
                    are very experienced riders, who know what's happening 
                    underneath them but we always tell new riders to the team to 
                    concentrate on what they are feeling, not to think about 
                    solutions. We use those feelings and the data to make 
                    decisions about which direction to go in."
                    
                    It's the practice and qualifying sessions 
                    that tend to be the most frantic for the data-logging 
                    engineers, when they must download and interpret the data 
                    and then make informed decisions with technicians and riders 
                    about what changes to make.
                    
                    When the session is over, the team will spend 
                    more time looking at the data and then, back at base after 
                    the racing weekend is over, they will go even deeper and 
                    engine tuners will look at sensors that are not even 
                    monitored during the weekend.
                    
                    "By definition, the sensors are sensitive," 
                    says Peter, "because if a rider can feel a 1mm change in 
                    ride height, our computers must be able to see a 0.1mm 
                    difference.
                    
                    "But," he concludes, "the computers don't 
                    give us answers, just the information. It's still the riders 
                    and team who make the decisions."