Ronstan 8:1 & 4:1 Two-Speed Mainsheet Bottom Blocks Only RF72900B 6772 Using two 45° triangles provides

Using two 45° triangles provides an easy method of plotting and performing chart work

‘(D) SHAFTS INSERT DIAMETER MM – 12

Forged long D shackle in high-resistance (HR) 17-4 PH stainless steel — up to 60% stronger than standard 316L stainless

• Suitable size negative busbar supplied

Available in four lengths: 8

Ronstan 8:1 & 4:1 Two-Speed Mainsheet Bottom Blocks Only RF72900B 6772 Using two 45° triangles providesBottom blocks for RF72900 two speed system FEATURES Coarse and and fine tuning purchase system. Unrivalled 18: 1 holding power. Dual sided On Off switch. Low friction ball bearing system. Lightweight. Cheek cut outs for easy bearing maintenance SPECIFICATIONS Product Specifications B. L. (kg) 2300 M. W. L. (kg) 1100 Max. Rope diameter (mm) 10 Weight (g) 1035