Parts of a fishing reel

Two reels labelled part by part: a spinning reel and a low-profile baitcaster.

Spinning reels and baitcasters share a foot, body, handle, spool and drag. A spinning reel winds line on with a rotor and bail around a spool that stays still; a baitcaster turns its spool, which is why it adds a thumb bar and brakes.12345678910

Fig. 1 · Sheet 1 of 2

Spinning reel

Choose a number to explore a part.

Labelled diagram of a spinning reel in side elevation, as mounted under the rod: 1 handle, 2 stem, 3 reel foot, 4 line roller, 5 bail, 6 drag knob, 7 spool, 8 rotor, 9 body, 10 anti-reverse switch (if fitted).Part 1: Handle1Part 2: Stem2Part 3: Reel foot3Part 4: Line roller4Part 5: Bail5Part 6: Drag knob6Part 7: Spool7Part 8: Rotor8Part 9: Body9Part 10: Anti-reverse switch (if fitted)10

Match a number to the parts key below. On a small screen, scroll the drawing sideways to see every part.

1Part 1 of 10

Handle

The handle is the crank the angler turns; on most spinning reels it can be moved to either side of the body.

Also called crank

Part reference & sources

Parts key What each part does, with sources
Parts key · spinning reel
#PartWhat it does
1Handlealso: crankThe handle is the crank the angler turns; on most spinning reels it can be moved to either side of the body.11112
2Stemalso: legConnects the reel foot to the housing, spacing the reel below the rod.111
3Reel footalso: footThe reel foot is the flat plate that slides into the rod's reel seat; the stem joins it to the body.111
4Line rolleralso: rollerThe line roller is the small wheel on the bail arm that guides line as it is wound onto a spinning reel.313
5Bailalso: bail arm, bail wireThe bail guides line onto the line roller and spool when closed; opening it frees the line to leave the spool during a cast.111
6Drag knobalso: front dragSets how hard a pull must be before the spool yields line.2414
7SpoolThe spinning reel's spool holds the line and oscillates in and out so the rotor lays line evenly; it does not turn for the retrieve.13
8RotorThe rotor is the part that revolves around the spool, carrying the bail and line roller, and it is what the handle turns through the gears.14
9Bodyalso: housingThe body, or housing, holds the gear train that turns handle rotation into rotor or spool rotation.12
10Anti-reverse switch (if fitted)also: back-reel switchOn reels with this switch, it selects whether the handle can turn backwards. Other reels have anti-reverse without an external switch.111
Fig.
1
Object
Spinning reel
View
side elevation, as mounted under the rod
Sheet
1 of 2
Rev.
Image version The labelled sheet as a picture

Print sheet gives this labelled drawing followed by a blank copy for practice.

Labelled diagram of a spinning reel in side elevation, as mounted under the rod: 1 handle, 2 stem, 3 reel foot, 4 line roller, 5 bail, 6 drag knob, 7 spool, 8 rotor, 9 body, 10 anti-reverse switch (if fitted).
Fig. 2 · Sheet 2 of 2

Baitcast reel

Choose a number to explore a part.

Labelled diagram of a baitcast reel in side elevation from the handle side, as mounted on top of the rod; far-side brake dial shown dashed: 1 thumb bar, 2 side plate, 3 spool, 4 spool tension knob, 5 level wind, 6 brake dial, 7 reel foot, 8 handle, 9 star drag, 10 frame.Part 1: Thumb bar1Part 2: Side plate2Part 3: Spool3Part 4: Spool tension knob4Part 5: Level wind5Part 6: Brake dial6Part 7: Reel foot7Part 8: Handle8Part 9: Star drag9Part 10: Frame10

Match a number to the parts key below. On a small screen, scroll the drawing sideways to see every part.

1Part 1 of 10

Thumb bar

The thumb bar, or clutch bar, is pressed to free the spool for the cast.

Also called clutch bar, clutch

Part reference & sources

Parts key What each part does, with sources
Parts key · baitcast reel
#PartWhat it does
1Thumb baralso: clutch bar, clutchThe thumb bar, or clutch bar, is pressed to free the spool for the cast.2
2Side platealso: sideplateCloses the frame; the handle-side cover encloses the gears in this example.2
3SpoolThe baitcast reel's spool is the revolving drum that stores line and spins during the cast.2
4Spool tension knobalso: cast control knobAdjusts resistance at the spool shaft to help control a cast.268910
5Level windalso: line guideA level wind travels across the spool to distribute line during retrieval; not every revolving-spool reel has one.23
6Brake dialalso: brake dial, magnetic brake, centrifugal brakeAdjusts casting-brake strength on this example; some reels also have internal settings.68910
7Reel footalso: footThe flat fitting that secures the reel to the rod seat.111
8Handlealso: crank, paddlesThe crank that drives the spool through the gears.11112
9Star dragalso: drag starThe star drag is the star-shaped wheel behind the handle that sets how much resistance the spool gives before yielding line.215
10FrameSupports the spool between the sideplates.2
Fig.
2
Object
Baitcast reel
View
side elevation from the handle side, as mounted on top of the rod; far-side brake dial shown dashed
Sheet
2 of 2
Rev.
Image version The labelled sheet as a picture

Print sheet gives this labelled drawing followed by a blank copy for practice.

Labelled diagram of a baitcast reel in side elevation from the handle side, as mounted on top of the rod; far-side brake dial shown dashed: 1 thumb bar, 2 side plate, 3 spool, 4 spool tension knob, 5 level wind, 6 brake dial, 7 reel foot, 8 handle, 9 star drag, 10 frame.

What differs, row by row

Typical, as described by the sources
Parts of a fishing reel: mechanism and typical trade-offs
AspectSpinning reelBaitcast reel
Spool on the castStays still; line coils off the lipTurns, once the thumb bar frees it25671116
Winding line onThe rotor carries the bail and roller around the spoolThe handle turns the spool; a level wind spreads the line1234
Cast releaseOpen the bailPress the thumb bar1211
Overrun controlNone needed for the spool; loose coils can still tangleSpool tension knob and brakes3468910
DragKnob on the front of the spool; rear drags also existStar beside the handle2415

What are the main parts of a fishing reel?

Both reels have a foot that slides into the rod’s reel seat, a body that holds the gears, and a handle that turns them.121112 The rest depends on the layout, and the table above compares the parts that differ.

Tell the layout from the spool

A spinning reel has a curved wire, the bail, that opens to let line out and closes to guide line over the roller as you wind.111 A baitcaster has no bail: its spool turns between the side plates to let line out and to wind it in.2567 Find the spool first, then look for the wire.

Drag and brakes do different jobs

Casting brakes and spool tension slow a baitcaster’s spool during the cast.68910 The drag lets line go against resistance when something pulls hard; set too tight, the line can still break.14 A drag knob and a brake dial can look alike, so identify each by what it does.

One layout at a time

The spinning reel guide and the baitcaster guide each take one reel on its own, with questions about that layout.

Questions people ask

What is the bail on a fishing reel?
The wire arm on a spinning reel that guides line onto the line roller and spool when closed, and frees the line when opened for a cast.111
What does the drag do on a reel?
Drag allows line to pay out against resistance. With a suitable setting it limits tension; a high setting or damaged line can still result in a break.14
What is the difference between the rotor and the spool?
On a spinning reel the rotor is the part that revolves, carrying the bail and roller; the spool holds the line and does not turn on the retrieve.134
What is anti-reverse?
The mechanism that stops the handle and rotor turning backwards, so a pull on the line works against the drag.111

Sources

First cited on this page
  1. Okuma Fishing USA: Tune-Up Tuesday: Anatomy of a Spinning Reel · accessed Sep 21, 2026
  2. Lew's: Speed Spool LSG1HAMG / LSG1SHAMG manual · accessed Sep 26, 2026
  3. Shimano North America: Shimano FAQ: rod power and action, series ratings · accessed Sep 26, 2026
All references 16 in total
  1. Daiwa: How to choose the right spinning reel · accessed Sep 26, 2026
  2. Minnesota Department of Natural Resources (MinnAqua): MinnAqua Leader's Guide, Lesson 5:1 Freshwater Rods and Reels · accessed Sep 26, 2026
  3. Lew's: Denny Brauer: how to avoid backlash · accessed Sep 26, 2026
  4. Take Me Fishing (RBFF): Tips on How to Cast with Different Reels · accessed Sep 26, 2026
  5. Kentucky Department of Fish and Wildlife Resources (Kentucky Afield column, via Bowling Green Daily News): Kentucky Afield Outdoors: Solving common fishing line problems (23 Jun 2010) · accessed Sep 26, 2026
  6. Wikipedia: Fishing reel (revision 1370480365, 21 Aug 2026) · accessed Sep 26, 2026
  7. Zebco: Baitcast reel manual · accessed Sep 26, 2026
  8. Take Me Fishing (RBFF): Fishing reel parts · accessed Sep 21, 2026
  9. Take Me Fishing (RBFF): How to Switch Reels Right to Left-Handed · accessed Sep 26, 2026
  10. Daiwa: Reel technology: rotor twist and Twist Buster · accessed Sep 21, 2026
  11. Zebco: Spincast reel instructions · accessed Sep 21, 2026
  12. PENN: Fathom II star drag: brake and drag specifications · accessed Sep 21, 2026
  13. Take Me Fishing (RBFF): How to choose a fishing reel · accessed Sep 26, 2026