90mm Synchro Footblock, Black
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LEWMAR90mm Synchro Footblock, Black


In stock online.
Model # 13062161 | Mfg # 29929061BKUPC # 743683204845
90mm Synchro Footblock, Black




90mm Synchro Footblock, Black

Name Value
Becket No Becket
Diameter 9/16 Inch or 14 mm
Direction Any
Integral Cleat No Integral Cleat
Mount Type Mechanical Fasteners
Ratchet Non Ratcheting
Safe Working Load 4400 Pounds
Sheave Diameter 50 mm
Type Single Cheek/Foot
Weight 15.2 Ounces

Product Overview

A unique block that is synchronized with running rigging systems.

The 90mm footblock without jammer is ideal for turning lines along the deck, cockpit or any flat surface. Commonly used for spinnaker sheets, travelers, jib car systems and more. The larger sheave diameter works well with up to 9/16" lines.

Synchro blocks combine geometry, sheave ratios and a unique Free Spin bearing to deliver performance that’s comparable to ball and roller bearing blocks used in racing—but at a more affordable price. Designed to optimize the relationship between block and line, these blocks maximize efficiency and reduce wear to both line and block. The cheek block or footblock version of these popular blocks feature a solid aluminum base to protect the sheave and bearing from possible sealant egress and an aluminum cheek for additional durability and strength. Available with or without jammer.

Synchro blocks use a larger sheave that features the Free Spin bearing. The bigger diameter sheave prevents distortion and reduces line wear while the Free-Spin bearing handles higher static loads.

Designed to be synchronized with your boat’s running rigging systems, Lewmar Synchro blocks are an ideal choice for the sailor looking to get more for less: racing features at a cruising price.

Key Features

  • Plain bearing block with ball bearing like performance
  • Highly efficient free-spin bearing reduces drag
  • Solid aluminum base prevents sealant egress into sheave or bearing
  • Molded insets in base hold sealant close to fasteners to maintain seal while under load
  • Aluminum cheek for added strength and durability
  • Standard equipment on newer racer/cruiser sailboats including Beneteau
  • Compatible with 1/2"—9/16" Line
  • Ideal for:
    • Travelers
    • Turning lines along deck, cockpit or other flat surfaces
    • Spinnaker sheets and guys
    • Can be used with angled pad to improve line scope

Selection Guide

Sheave DiameterLine RangeShackle Post Pin Diameter
50mm1/4"—3/8" (6mm—10mm)3/32"
60mm5/16"—3/8" (8mm—10mm)3/16"
72mm3/8"—1/2" (10mm—12mm)1/4"
90mm1/2"—9/16" (12mm—14mm)3/8"


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