The most powerfull and stiffest racing sprit, especially designed for the heavier weight sailor. The MK4 29 mm sprit for the Optimist is suitable for sailors from 45 kg.
Superior Lanurep spacecraft alloy
Anodized to a dark grey color
Grey glass fibre filled Nylon sprit ends
15 cm heat shrinkable sprit protection tubing,
prevents wear between mast and sprit