How to stop backlash on a baitcasting reel
Set spool tension and brake so the spool stops when the lure does, and learn the thumb that finishes the cast.
Last reviewed 26 September 2026 · Editorial policy
What this skill is for
Backlash is one problem: the spool is still spinning after the lure has stopped. Everything you adjust — tension knob, brake, thumb — is just a way of slowing the spool to match the lure. Fix it and baitcasting becomes the most accurate way to cast.
What you need
- Baitcasting reel
- A lure of the weight you normally cast
- Somewhere to pull line out and re-spool
Step by step
- 01
Set the spool tension knob
With the clutch out, hold the lure in your hand and let the spool run. Adjust the side knob until the lure falls slowly and steadily to the ground when you release your thumb — not dropping freely, not stopping dead.
- 02
Set the brake high while learning
Magnetic dials or centrifugal pins: start near the middle-high end and cast. As your thumb improves, reduce it a step at a time until the cast starts to overrun, then go back one step.
- 03
Cast with a smooth stop
Accelerate the rod to about eleven o'clock and stop it abruptly. The rod does the work; the wrist stays quiet. A hard, long yank keeps line feeding after the lure has landed.
- 04
Thumb the spool as it lands
Watch the lure, not the water, and press your thumb onto the spool the instant it touches down. That is the adjustment no dial can make for you.
- 05
Clear a nest properly
Don't pull the tangle through the guides. Open the reel, lift the loops off the spool, take the bird's nest off the line entirely, then wind the remaining line back on under light tension.
Where it goes wrong
- Cranking the tension knob to stop all overrun — it also stops all distance.
- Casting into wind with the brake off.
- Overfilled braid, where the top layer digs into the spool and the reel locks up mid-cast.
- Thumbing too late, when the line has already gone slack on the water.
Related guides
Common questions
What do I need for stop backlash?
Baitcasting reel, A lure of the weight you normally cast, Somewhere to pull line out and re-spool. Nothing specialist beyond that — if a step needs something extra it is listed in the guide itself.
What is the most common mistake with stop backlash?
Cranking the tension knob to stop all overrun — it also stops all distance.
How do I know stop backlash is done correctly?
The lure lands quietly, the spool stops with it, and you can pull line off by hand with the same steady resistance every time.