{"product_id":"lewmar-size-1-tb-mainsheet-car-with-upstand-pair-of-double-control-line-sheaves-cleats","title":"Lewmar Size 1 TB Mainsheet Car With Upstand, Pair Of Double Control Line Sheaves \u0026 Cleats","description":"\u003cp\u003e\u003cstrong\u003eLewmar Size 1 TB Mainsheet Car With Upstand, Pair Of Double Control Line Sheaves \u0026amp; Cleats\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Lewmar TB Mainsheet Car with Upstand, Pair of Double Control Line Sheaves \u0026amp; Cleats delivers powerful, precise traveller control for high-load mainsheet systems. Its track-bearing (TB) design ensures smooth, stable movement under load, while the upstand improves line lead and keeps control lines organised and accessible. Twin double sheaves provide balanced, low-friction trimming form both sides, and integrated cleats allow fast, secure line locking without additional hardware. Built from durable, marine-grade materials, its ideal for performance cruising and racing yachts requiring efficient, reliable, all-in-one traveller control.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eComplete Traveller Control for High-Load Applications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Lewmar TB Mainsheet Car with Upstand, Pair of Double Control Line Sheaves \u0026amp; Cleats is engineered as a fully integrated solution for demanding mainsheet traveller systems. Designed for performance cruising yachts and race-ready setups, it combines structural strength, efficient line management, and secure control into a single, high-performance assembly.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTrack-Bearing (TB) High-Load Design\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAt its core, the Track-Bearing (TB) configuration is optimised to transmit mainsheet loads directly into the traveller track, maintaining precise alignment and smooth travel under heavy load. This design ensures predictable, low-friction movement during trimming and easing, even in dynamic sailing conditions with powerful rigs.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIntegrated Upstand for Optimal Line Leads\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe built-in upstand elevates control-line sheaves above the car, improving lead angles and keeping lines clear when unloaded. This enhances ergonomics, reduces the risk of snagging, and ensures clean, efficient routing into clutches or cleats, particularly valuable in high-traffic cockpit areas.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDouble Control Line Sheaves for Balanced Performance\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFeaturing a pair of double control line sheaves, the car enables smooth, balanced control from both sides of the traveller. This multi-sheave configuration distributes load evenly, reduces friction, and improves responsiveness during trimming, while helping to minimise wear on control lines during heavy use.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIntegrated Cleats for Positive Line Holding\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBuilt-in cleats allow control lines to be locked off quickly and securely once the traveller is set. This integrated solution eliminates the need for additional deck hardware, improves handling efficiency, and ensures that trim settings are maintained under sustained load with confidence.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSmooth, Reliable Operation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePrecision-engineered bearing surfaces and sheave geometry deliver consistent, low-friction movement across the full range of traveller adjustment. This smooth operation enhances sail-shape control, reduces crew effort, and supports consistent performance during intensive sailing and repeated manoeuvres.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMarine-Grade Construction\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eManufactured from durable, corrosion-resistant marine-grade materials, the TB Mainsheet Car is built to withstand sustained high loads, shock forces, and harsh marine environments. Its robust construction ensures long-term reliability and dependable performance for both offshore cruising and racing applications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eClean, System-Led Integration\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBy integrating load handling, control-line sheaves, upstand guidance, and cleating into a single component, the design reduces system complexity and deck clutter. The result is a cleaner, more efficient deck layout with improved ergonomics and professional-grade functionality.\u003c\/p\u003e\n\u003ch2 style=\"text-align: center;\"\u003e\u003cspan style=\"font-size: 2x-large;\"\u003eTechnical Description\u003c\/span\u003e\u003c\/h2\u003e\n\u003ctable style=\"width: 100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 50%;\"\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 50%;\"\u003eHardware\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 50%;\"\u003e\u003cstrong\u003eBoat Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 50%;\"\u003eSail\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 50%;\"\u003e\u003cstrong\u003eHardware Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 50%;\"\u003eTravellers and cars\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 50%;\"\u003e\u003cstrong\u003eBoat Length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 50%;\"\u003eup to 30ft, 31-50ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 50%;\"\u003e\u003cstrong\u003eCar Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 50%;\"\u003eMainsheet car\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 50%;\"\u003e\u003cstrong\u003eSize\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 50%;\"\u003eSize 1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n","brand":"Lewmar","offers":[{"title":"Default Title","offer_id":53592408752500,"sku":"LEW29431814BK","price":377.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0934\/4004\/9524\/files\/LEW29431814__58823.jpg.1428984928.jpg?v=1761717915","url":"https:\/\/velasailingsupply.com\/products\/lewmar-size-1-tb-mainsheet-car-with-upstand-pair-of-double-control-line-sheaves-cleats","provider":"Vela Sailing Supply","version":"1.0","type":"link"}