Schaefer 1 7/16" Sheave, Max Line 1/2" SCHAEFER DELRIN BLACK SHEAVES W/ BEARING Tactician-crew only needs to memorize

Tactician-crew only needs to memorize one figure for the 3 legs of an Olympic course

Length: 3 25/32 in

Ronstan Orbit Series 55 Single Ratchet Block

Control ends with high performance Torlon® ball bearing sheaves are used with mainsheet traveler and genoa sheeting systems to create purchase systems for easy adjustment of car position under load

Length: 6 3/4" (171mm)

Schaefer 1 7/16" Sheave, Max Line 1/2" SCHAEFER DELRIN BLACK SHEAVES W/ BEARING Tactician-crew only needs to memorizeProduct Description Schaefer 1 7 16" Sheave, Max Line 1 2" Specifications: Material: Alum. Max Line: 1 2 in. (13 mm) Max Wire: 3 16 in. (5 mm) Outside Dia.: 1 7 16 in. (37 mm) Inside Dia.: 3 8 in. (10 mm) Width: 19 32 in. (15 mm)