SmartTune is a plug-in wireless load sensor that accurately measures your shroud tension in real time. This allows you to measure and repeat your fast settings for forestay load and ‘sag’ to give your best headsail shape (and mast bend) for optimum performance in all wind-speeds and conditions.


A super accurate and reliable wireless load sensor that runs for months on end using standard AA batteries and is a 'straight swap' with your current forestay turnscrew, SmartTune can easily link up with your Smartphone using our simple App or be linked in with your current  B&G displays via our wireless receiver. 


Dave Swete, the creator of the Performance 40 Sailing Series comments: 'Previously only available to bigger budget teams, all of the benefits of knowing your rig loads are now available to everyone and it couldn't be more affordable or simple. In my opinion the SmartTune is a must for any serious (or not so serious) racer.'

Smartune turnscrew size 7/16" (11.11mm) ie. Half Tonner