Ronstan Two-speed Mainsheet System Bottom Block Only Spin Pole Replacement Parts J/22 4-10 mm (1/16-3/8in

4-10 mm (1/16-3/8in

Schaefer 650 Series Upper Swivel

5" x 22'6" Aluminum Tubing

for category 0

Ronstan Two-speed Mainsheet System Bottom Block Only Spin Pole Replacement Parts J/22 4-10 mm (1/16-3/8inProduct Description Ronstan Two speed Mainsheet System Bottom Block Only Product Information Two speed mainsheet systems allow both coarse and fine tuning in a single purchase system. The system allows fine tuning of the mainsheet when sailing upwind by using one of the sheet tails and keeping the other cleated. Using both the sheets at once allows the trimmer to blow off the main quickly when rounding the top mark and trim on quickly when hardening