Hi, Could I request the dimensions of the Mainsail track on the top of the boom and also the dimensions of the lower In-Boom track. The width of the tracks would be very useful to know. Thank you!

Hi Greg I haven't got a boom to hand to measure but from the fittings I'd guess at the following Lower track is 20mm wide internally with a 10mm opening, I expect this will be a square profile The upper track is about 10mm round profile with a 3 or 4mm opening Hope that helps Regards David