Ronstan Track - Series 42 - Luff Groove Profile 3m ronstan series 75 sheave acetal - solid bearing This rechargeable air horn offers

This rechargeable air horn offers a sustainable solution

When mounted in an inverted position

Price is for a 4" piece of this bushing

Base diameter - 135 x 135mm Height - 70mm

Made from polyethylene material

Ronstan Track - Series 42 - Luff Groove Profile 3m ronstan series 75 sheave acetal - solid bearing This rechargeable air horn offersConvenient track mounting slugs are available for fitting standard profile track to the luff groove of existing masts. Patented system uses low profile cars running on twin races of acetal ball bearings. Cars use the existing luff groove of the mast (no track or installation work required). Ball bearings are captive for easy loading and unloading of cars from mast. They can be easily switched between fully battened and soft luff mainsails. Minimum