Mastering your mainsail: Vang & Rodkicker

What’s the difference between a Rodkicker and a vang?

Vang systems, also known as boom vangs or kickers, are essential for precise mainsail trimming and maintaining sail shape. By preventing the boom from lifting while sailing, vang systems help keep the mainsail flat, enabling better performance and control, especially in varying wind conditions.

Advanced systems, such as Seldén Rodkickers with gas springs, offer additional support by keeping the boom upright, replacing the need for a topping lift. Unlike traditional vangs, a rod kicker provides structural support. It makes reefing easier and keeps the boom horizontal when docked.

How to choose the right Rodkicker?

Choosing the right size is key. Here’s what matters:

Righting moment: This indicates how much sail a yacht can carry and is often proportional to displacement.
Type of rigging: Masthead or fractional rigging affects the kicker size.
Gas spring strength: Needs to match boom weight (including sail) and Rodkicker angle.

Would you like help selecting the right Rodkicker? Just send us a message!

Do I need a Rodkicker with a gas spring?

A gas spring makes reefing easier by replacing the topping lift, making the process quicker and simpler. It also helps maintain consistent boom height. Retrofitting is easy, so upgrading an existing system from Seldén is no problem.

Do I need to replace my gas spring from my Seldén Rodkicker?

Gas springs lose pressure over time. If the boom no longer stays up, it's time for a replacement. For a Seldén Rodkicker, replacement is simple with the gas spring kit. Just open the Rodkicker, remove the old gas spring, and install the new one.

Can a Rodkicker replace a topping lift?

Yes! A Rodkicker with a gas spring eliminates the need for a topping lift. The boom is supported by the Rodkicker itself, making sail handling easier and more efficient. It improves safety, reduces clutter, and simplifies reefing.

Is vang sheeting possible with a Rodkicker?

Yes! A Rodkicker works just like a vang and more. Vang sheeting in heavy winds is no problem. Just make sure you have the right purchase. If trimming takes too much effort, it won’t be used as often as it should. Always ensure a working vang system for proper boom control. Need help? Contact us anytime!

Rodkicker maintenance tips

Keeping your Rodkicker in top shape improves performance and prevents failure.

• • Check for cracks, corrosion, or damage on the housing and fittings.
  • Inspect the gas spring for leaks or pressure loss. If the boom sags, the gas strut may need replacing.
  • Look for loose bolts or rivets at the boom and mast attachment points.
  • Wash with freshwater after sailing, especially in saltwater conditions.
  • Avoid grease or heavy oil, which attracts dirt and grime.
  • Inspect mast and boom attachment points.
  • If the kicker wobbles, check if mounting hardware is loose.