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Lewmar 40mm Synchro Block Double Becket Bk

Note: Some prices may reflect updates due to international tariffs. Learn the latest about tariffs

Tariff Updates

We are observing how the tariffs are behaving. Lots of our products are imported from Europe and some of the manufacturers are not providing heads up about price increases. We will do everything in our power to hold the best prices, but please consider that in these uncertain times we may be forced to increase the prices without previous notification.

We really appreciate your understanding and look forward to working with you.

What does this mean for you?

  • Some imported products may show a higher price than usual.
  • Prices may change as shipping rates adjust globally.
  • We are committed to providing the best possible pricing and transparency at all times.

How we’re handling it:

  • We only adjust prices when absolutely necessary.
  • We continuously monitor shipping rates and update pricing accordingly.
  • We’ll clearly notify you if a product is affected by tariffs.

Questions? Feel free to contact our team for any clarification or assistance.

Updated: April 2025

MSRP: $115.95
$69.57
(You save $46.38 )
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SKU:
LEW29901425BK
Availability:
Please give 24-36 business hours for our team to process your order. Once processed, lead time is 5-7 business days if item is in stock. Please call to check availability. Not available for expedited shipping. Usually Ships Within 20 Days
Weight:
0.50 LBS
Shipping:
Calculated at Checkout.
Size:
40 mm
Please call us to confirm availability.


Ideal for use with hand-held loads, Lewmar’s Control Blocks feature lightweight, performance load-bearing capacity. MRT (Metal Replacement Technology) and a stainless steel central race and balls provide a weight advantage, while Long Fibre Technology offers exceptional strength and durability. The open design allows sand and salt to be flushed out easily, keeping maintenance simple.

Features

  • Lightweight
  • Very High Strength
  • Impact Resistant
  • Reduced Friction
  • Easy Maintenance
  • Optimised for hand control

Applications

Ball bearing blocks are typically used for medium and dynamic loads in:

  • Control line applications
  • Mainsail sheets for dinghies and keelboats
  • Spinnaker sheets, barber haulers
  • Genoa sheets
  • Dinghy applications

Manufacturer part #: 29901425BK

Technical Description
1056 lb
480 kg
2640 lb
1200 kg
4.11 oz
116.5 g
3/8 in
10 mm
4- 23/64 in
111 mm
 
 
Lewmar Control Blocks