b"End Controls:TECH TIP27 mm Midrange and 32 mm Big 32 mm Big Boat Boat kits are available for purchase upgrades from 1:1 to 4:1.Amel 50, 15.24 m (50'), Berret-Racoupeau Yacht DesignRobin ChristolControl Purchase RecommendationsSail areaEnd-boom sheeting Mid-boom sheetingft 2 m 2 ft 2 m 2 PurchaseUnder 260 Under 24 Under 240 Under 22 3:1260-450 24-42 240-400 22-37 4:1450-600 42-56 400-550 37-51 6:1Over 600 Over 56 Over 550 Over 51 2:1 w/winchSheave Weight Max line HeightMaximum BreakingPartLength Width (pair)above track working load loadNo. Description in mm in mm in mm oz g in mm in mm lb kg lb kg PurchaseCarbo Ball Bearing End Controls3168Single sheave (pair)***404 13/16 1222 1/457277673/8101 7/163645020416007251:1 / 2:1 1 9/16 3169Double sheave (pair)***1 9/16404 13/16 1222 1/457318873/81025190040823001040 3:1 / 4:13170Double sheave/150 Cam-Matic (pair)***1 9/16404 13/16 1224 1/81043911163/81025190040823001040 3:1 / 4:13197Triple sheave/deadend (pair)1 3/8, 2 1/4 35, 576 3/41712 1/45732.49183/8102 1/264150068025001134 5:1 / 6:1 High-Load End Controls 3173High-load single (pair)2 1/4576 7/16 1642 1/457359817/16121 1/16282500113450002268 1:1 / 2:13174High-load double (pair)2 1/4576 7/16 1642 1/4574111697/16121 15/1649165075033001500 3:1 / 4:1Pinstops3212Adjustable pinstop2 9/16652 1/4578** 227** 1 5/1633 3213Adjustable pinstop/shackle4 7/16 1132 1/457 15.2**431** 1 27/3246350015883304Adjustable pinstop2 1/2642 1/457 10.3**294** 1 3/1630 ESP Sleeve Bearing End Controls E3230Single sheave/deadend (pair)1 3/8354 13/16 122 1 13/164519.545543/8101 7/16361800816360016332:1E3230.HL High-load/single sheave/deadend (pair)1 9/16404 13/16 122 1 13/164523.46423/8101 1/24025001134500022682:1E3250HBHigh-beam/double sheave (pair)*2 1/4576 1/81552 1/45754.615473/81012570031814006353:1 / 4:1E3250Double sheave/deadend (pair)1 3/8354 13/16 122 1 13/164524.26863/8102 1/456180081636001633 3:1 / 4:1E3250.HL High-load/double sheave/deadend (pair)1 9/16404 13/16 122 1 13/164527.87883/8102 1/2642500113450002268 3:1 / 4:1E3256Double sheave/deadend/150 Cam-Matic (pair)1 3/8353 3/4954 1/8104 45.0812783/8102 1/456900408230010404:1*Requires high-beam track. **Weight each. ***Includes 10 mm RH fasteners.114 Maximum working loads and breaking loads based on cam strengths."