The Button-shift is very similar to the Quick-shift in that it allows faster, full throttle, clutch-less gear changes giving increased acceleration, better corner stability and reduced lap times. Button-shifters aren't as easy to use initially but once mastered should be almost as quick as a quickshifter and definitely quicker than a conventional shift. The handlebar button replaces the quick-shifter sensor so has to do the same job in initiating the engine kill time as the gears are about to be separated. To begin with, pre-loading the gear lever just before pressing the shift button enables a quick clean shift. This could take some adapting to after many years of conventional shifting so best not to try this in a timed practice or race! Eventually, it just becomes second nature with no pre-loading necessary.

How It Works:- The control box is constantly watching the handlebar button (every 1000th of a second) waiting for the rider to press it. The control box then cuts either the ignition or fuel injection and starts the kill time. This can be adjusted from 30 to 100 milliseconds (1000th of a second = 1 millisecond). When the kill time is over and the next gear in mesh, the engine power is restored and the control box carries on monitoring the button for the next shift.

For more details click on performance or installation

• Can be installed and set up within 60 minutes.

• Track and road tested in all weather conditions.

• Full refund if not convinced within 60 days plus a 1 year guarantee.

• Used by club/national/international road racers (125's to Superbikes) + Sidecar, Bike-engined Cars, Supermoto, Quad, Sand and Kart racers.

• Fitting service now available at race and track days, call or e-mail for details.

• As used by top riders such as Michael Rutter, Troy Corser, James Haydon, Ian Lougher, James and Jonathon Lodge.