Updated September 2026.
Lead clip, inline and helicopter are the three systems almost every carp rig is built around, and choosing between them shapes hooking mechanics, fish safety and how a rig copes with the lakebed beneath it.
The Three Systems
A lead clip holds a lead on a plastic clip designed to release under pressure, an inline lead runs the mainline directly through the lead’s body, and a helicopter setup lets a lead run freely on a length of tubing above the rig. Each behaves differently on the take, on the drop, and when a lead needs to shed for fish safety.
Lead Clip: How It Works and When
A lead clip’s tail rubber releases the lead under a sharp pull, such as a carp bolting after the take, providing a reliable fish-safety mechanism while still offering a fixed, self-hooking effect during the initial take. This makes lead clips a strong all-round choice for silt, gravel and clean bottoms without heavy weed or snag risk.
Inline: Hooking and Drop-Off
An inline lead sits directly on the line, giving a strong bolt effect as a fish moves off, useful for solid, positive hook-ups at range. Drop-off inline systems, which release the lead on a sharp pull similarly to a lead clip, address the fish-safety concerns of a fully fixed inline setup and are generally preferred over non-drop-off versions.
Helicopter: Silt, Weed and Chods
A helicopter setup allows the lead to run freely, letting a rig avoid dragging a fixed lead through weed, debris or soft silt during the fight, and is the standard choice for chod rigs and similarly presented setups. This freedom trades away some of the immediate bolt effect of a fixed system in exchange for better performance over difficult bottoms.
Fish Safety of Each
All three systems can be fished safely when correctly set up, but a lead clip or drop-off inline offers the clearest, most reliable shedding mechanism if a fish becomes tethered on a snag; a fully fixed inline lead without a drop-off feature is generally considered the least fish-safe option and is best avoided.
Casting and Tangles
Inline leads tend to cast most aerodynamically and resist tangling well due to their streamlined, in-line profile. Lead clips add a small amount of extra hardware that can occasionally tangle on a poor cast. Helicopter rigs, with their free-running lead, need careful setup to avoid the rig tangling around the tubing during flight.
Which Suits a Given Situation
A lead clip suits most clean-bottom, all-round fishing; a drop-off inline suits distance work calling for maximum casting efficiency and hooking power; a helicopter setup suits silt, weed and chod-style presentations where the lead must run free of the rig on the drop and during the fight.
For the leads used across all three systems, see our guide to carp leads explained, and for building a complete rig around any of these systems, our guide to carp fishing rigs.
Read next:
- Carp leads explained
- The complete guide to carp fishing rigs
- The chod rig: complete setup guide for weed and silt
Last Updated on September 10, 2026 by Shane Stanford
Shane Stanford has fished for carp for over twenty years, in the UK and in France, and currently fishes a private syndicate water in West Sussex. He writes Fishing Again to put the things he learned the hard way into plain language: location and watercraft first, then bait, rigs and gear. He is straight about which kit he has actually fished and which he has assessed on specification, and says so on the page.
