Ronstan Series 19 Track Car w/ Saddle Top & Single Control Sheave 86mm Jackets - Skiing This lets the sheet run

This lets the sheet run out smoothly and freely-great for rapid easing of the sheet and for gybing asymmetric spinnakers

D - 19/32 in

Cut-Out Width (Flat/Flange) Y1 (in) - 19 3/4

calibrated and tested

go with this one

Ronstan Series 19 Track Car w/ Saddle Top & Single Control Sheave 86mm Jackets - Skiing This lets the sheet runProduct Description Ronstan Series 19 Track Car w Saddle Top & Single Control Sheave 86mm Features Length 3 3 8 in. M. W. L. 715 lb. B. L. 3080 lb. Weight 9. 2 oz. Product Information Strong, stainless steel bodies with flared sides and angled ball bearing wheels provide high load capacity and smooth operation. Applications Mainsheet and self tacking jib travelers on dinghies and catamarans Materials Black Chromed Grade 316 stainless steel car bodies