Lewmar Synchro Blocks

Lewmar

Lewmar Synchro blocks are engineered for speed, efficiency and superior handling. We use a combination of scientifically optimised block geometry, a Free-Spin bearing and self-aligning head to reduce friction and increase efficiency by up to 40% over budget blocks on mainsheet systems.
Each component is perfectly synchronised with the movement of the rope, providing you with an easier, smoother transfer of power from deck to sail and less wear on your rope.

Lewmar Synchro Blocks 50mm
Product No. Sheave Ø Max Line Size Working Load Limit Weight
29925001BK 50mm 10mm
(3/8")
450kg
(990lbs)
142g
(5.01oz)
29925002BK 50mm 10mm
(3/8")
450kg
(990lbs)
142g
(5.01oz)
29925003BK 50mm 10mm
(3/8")
450kg
(990lbs)
226g
(7.96oz)
29925004BK 50mm 10mm
(3/8")
450kg
(990lbs)
81kg
(2.85oz)
29925005BK 50mm 10mm
(3/8")
450kg
(990lbs)
164g
(5.77oz)
29925009BK 50mm 10mm
(3/8")
450kg
(990lbs)
123g
(4.30oz)
29925010BK 50mm 10mm
(3/8")
450kg
(990lbs)
282g
(9.93oz)
29925021BK 50mm 10mm
(3/8")
450kg
(990lbs)
73g
(2.57oz)
Lewmar Synchro Blocks 60mm
Product No. Sheave Ø Max Line Size Working Load Limit Weight
29926001BK 60mm 10mm
(3/8")
800kg
(1,764lbs)
115g (4.06oz)
29926002BK 60mm 10mm
(3/8")
800kg
(1,764lbs)
251g
(8.84oz)
29926003BK 60mm 10mm
(3/8")
800kg
(1,764lbs)
371g
(13.06oz)
29926004BK 60mm 10mm
(3/8")
800kg
(1,764lbs)
127g
(4.48oz)
29926005BK 60mm 10mm
(3/8")
800kg
(1,764lbs)
261g
(9.19oz)
29926010BK 60mm 10mm
(3/8")
800kg
(1,764lbs)
447g
(15.73oz)
29926021BK 60mm 10mm
(3/8")
800kg
(1,764lbs)
122g
(4.29oz)
29926061BK 60mm 10mm
(3/8")
800kg
(1,764lbs)
162g
(5.70oz)
29926064BK 60mm 10mm
(3/8")
800kg
(1,764lbs)
190
(6.70oz)
Lewmar Synchrol Blocks 72mm
Product No. Sheave Ø Max Line Size Working Load Limit Weight
29927201BK 72mm 12mm
(1/2")
1,100kg (2,420lbs) 190g
(6.69oz)
29927202BK 72mm 12mm
(1/2")
1,100kg
(2,420lbs)
406g
(14.29oz)
29927203BK 72mm 12mm
(1/2")
1,100kg
(2,420lbs)
618g
(21.75oz)
29927204BK 72mm 12mm
(1/2")
1,100kg
(2,420lbs)
210g
(7.41oz)
29927205BK 72mm 12mm
(1/2")
1,100kg
(2,420lbs)
415g
(14.61oz)
29927210BK 72mm 12mm
(1/2")
1,100kg
(2,420lbs)
820g
(28.86oz)
29927221BK 72mm 12mm
(1/2")
1,100kg
(2,420lbs)
198g
(6.98oz)
29927261BK 72mm 12mm
(1/2")
1,200kg
(2,645lbs)
229g
(8.10oz)
29927264BK 72mm 12mm
(1/2")
1,200kg
(2,645lbs)
250g
(8.80oz)
Lewmar Synchro Blocks 90mm
Product No. Sheave Ø Max Line Size Working Load Limit Weight
29929001BK 90mm 14mm
(9/16")
2,000kg
(4,4000lbs)
413g
(14.57oz)
29929002BK 90mm 14mm
(9/16")
2,000kg
(4,4000lbs)
966g
(34oz)
29929003BK 90mm 14mm
(9/16")
2,000kg
(4,400lbs)
1,389g
(48.89oz)
29929004BK 90mm 14mm
(9/16")
2,000kg
(4,400lbs)
458g
(16.156oz)
29929021BK 90mm 14mm
(9/16")
2,000kg
(4,400lbs)
414g
(14.57oz)
29929061BK 90mm 14mm
(9/16")
2,000kg
(4,409lbs)
430kg
(15.20oz)
29929064BK 90mm 14mm
(9/16")
2,000kg
(4,409lbs)
480
(16.90oz)