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Sprockets > Bicycle Chain Sprockets > Freewheel Sprockets

Freewheel Sprockets for Bicycle Chain

  • 1/2" x 3/32" (#408) bicycle chain is used on multi-speed bicycles with front and/or rear derailleurs.

  • 1/2" x 1/8" (#410) bicycle chain is used on single-speed and 3-speed bicycles with internal hub gears, and also used on electric bicycle gear motors which have a chain between the motor and a sprocket on the rear wheel.

  • 1/2" x 3/32" (#408) and 1/2" x 1/8" (#410) bicycle chain are available on our Chain Page.

  • Motors that are compatible with the sprockets sold on this page are available on our Motors with 1/2" x 1/8" (#410) Chain Sprockets Page.

Freewheel Sprockets, Freewheels, and Axle Adapters
All of the freewheel sprockets, freewheels, and freewheel to axle adapters
on this page are 100% compatible and interchangeable with each other.
Freewheel
Sprockets
Freewheel
Clutches
Freewheel to Axle
Adapters
Freewheel
Tools

Freewheel Sprockets

Our 22 tooth through 48 tooth steel freewheel sprockets are a shelf stock part that are in stock if they can be added to the cart. Our 50 tooth through 90 tooth aluminum alloy sprockets are machined on an individual order basis so please allow a few extra days of processing time when ordering these sprockets.



22 Tooth 5-Hole Freewheel Sprocket for 1/2" x 1/8" and 1/2" x 3/32" Bicycle Chain
22 tooth sprocket for 1/2" x 1/8" (#410) and 1/2" x 3/32" (#408) bicycle chain. Made of black powder coated steel. Dimensions 3.778" OD, 2.125" ID, 2.638" bolt circle diameter. Five 5.1mm ID mounting holes for M5x0.8 bolts. Compatible with 5-hole freewheel item # FWM-205 sold below.
Item # SPR-B22F

$18.95


24 Tooth 5-Hole Freewheel Sprocket for 1/2" x 1/8" and 1/2" x 3/32" Bicycle Chain
24 tooth sprocket for 1/2" x 1/8" (#410) and 1/2" x 3/32" (#408) bicycle chain. Made of black powder coated steel. Dimensions 4.098" OD, 2.125" ID, 2.638" bolt circle diameter. Five 5.1mm ID mounting holes for M5x0.8 bolts. Compatible with 5-hole freewheel item # FWM-205 sold below.
Item # SPR-B24F

$19.95


30 Tooth 5-Hole Freewheel Sprocket for 1/2" x 1/8" and 1/2" x 3/32" Bicycle Chain
30 tooth sprocket for 1/2" x 1/8" (#410) and 1/2" x 3/32" (#408) bicycle chain. Made of black powder coated steel. Dimensions 5.057" OD, 2.125" ID, 2.638" bolt circle diameter. Five 5.1mm ID mounting holes for M5x0.8 bolts. Compatible with 5-hole freewheel item # FWM-205 sold below.
Item # SPR-B30F

$22.95


32 Tooth 5-Hole Freewheel Sprocket for 1/2" x 1/8" and 1/2" x 3/32" Bicycle Chain
32 tooth sprocket for 1/2" x 1/8" (#410) and 1/2" x 3/32" (#408) bicycle chain. Made of black powder coated steel. Dimensions 5.376" OD, 2.125" ID, 2.638" bolt circle diameter. Five 5.1mm ID mounting holes for M5x0.8 bolts. Compatible with 5-hole freewheel item # FWM-205 sold below.
Item # SPR-B32F

$23.95


36 Tooth 5-Hole Freewheel Sprocket for 1/2" x 1/8" and 1/2" x 3/32" Bicycle Chain
36 tooth sprocket for 1/2" x 1/8" (#410) and 1/2" x 3/32" (#408) bicycle chain. Made of black powder coated steel. Dimensions 6.015" OD, 2.125" ID, 2.638" bolt circle diameter. Five 5.1mm ID mounting holes for M5x0.8 bolts. Compatible with 5-hole freewheel item # FWM-205 sold below.
Item # SPR-B36F

$24.95


40 Tooth 5-Hole Freewheel Sprocket for 1/2" x 1/8" and 1/2" x 3/32" Bicycle Chain
40 tooth sprocket for 1/2" x 1/8" (#410) and 1/2" x 3/32" (#408) bicycle chain. Made of nickel plated steel. Dimensions 6.653" OD, 2.125" ID, 2.638" bolt circle diameter. Five 5.1mm ID mounting holes for M5x0.8 bolts. Compatible with 5-hole freewheel item # FWM-205 sold below.
Item # SPR-B40F

$25.95


44 Tooth 5-Hole Freewheel Sprocket for 1/2" x 1/8" and 1/2" x 3/32" Bicycle Chain
44 tooth sprocket for 1/2" x 1/8" (#410) and 1/2" x 3/32" (#408) bicycle chain. Made of black powder coated steel. Dimensions 7.291" OD, 2.125" ID, 2.638" bolt circle diameter. Five 5.1mm ID mounting holes for M5x0.8 bolts. Compatible with 5-hole freewheel item # FWM-205 sold below.
Item # SPR-B44F

$29.95


48 Tooth 5-Hole Freewheel Sprocket for 1/2" x 1/8" and 1/2" x 3/32" Bicycle Chain
48 tooth sprocket for 1/2" x 1/8" (#410) and 1/2" x 3/32" (#408) bicycle chain. Made of black powder coated steel. Dimensions 7.928" OD, 2.125" ID, 2.638" bolt circle diameter. Five 5.1mm ID mounting holes for M5x0.8 bolts. Compatible with 5-hole freewheel item # FWM-205 sold below.
Item # SPR-B48F

$32.95


50 Tooth 5-Hole Freewheel Sprocket for 1/2" x 1/8" Bicycle Chain
50 tooth sprocket for 1/2" x 1/8" (#410) bicycle chain. 8.884" OD, 2.125" ID, 2.638" bolt circle diameter. Made of aircraft-grade tempered (hardened) aluminum alloy. Five 5.1mm ID mounting holes for M5x0.8 bolts. Compatible with 5-hole freewheel item # FWM-205 sold below.
Item # SPR-B50F5
$49.95


55 Tooth 5-Hole Freewheel Sprocket for 1/2" x 1/8" Bicycle Chain
55 tooth sprocket for 1/2" x 1/8" (#410) bicycle chain. 9.362" OD, 2.125" ID, 2.638" bolt circle diameter. Made of aircraft-grade tempered (hardened) aluminum alloy. Five 5.1mm ID mounting holes for M5x0.8 bolts. Compatible with 5-hole freewheel item # FWM-205 sold below.
Item # SPR-B55F5
$54.95


60 Tooth 5-Hole Freewheel Sprocket for 1/2" x 1/8" Bicycle Chain
60 tooth sprocket for 1/2" x 1/8" (#410) bicycle chain. 9.840" OD, 2.125" ID, 2.638" bolt circle diameter. Made of aircraft-grade tempered (hardened) aluminum alloy. Five 5.1mm ID mounting holes for M5x0.8 bolts. Compatible with 5-hole freewheel item # FWM-205 sold below.
Item # SPR-B60F5
$61.95


65 Tooth 5-Hole Freewheel Sprocket for 1/2" x 1/8" Bicycle Chain
65 tooth sprocket for 1/2" x 1/8" (#410) bicycle chain. 10.478" OD, 2.125" ID, 2.638" bolt circle diameter. Made of aircraft-grade tempered (hardened) aluminum alloy. Five 5.1mm ID mounting holes for M5x0.8 bolts. Compatible with 5-hole freewheel item # FWM-205 sold below.
Item # SPR-B65F5
$66.95


70 Tooth 5-Hole Freewheel Sprocket for 1/2" x 1/8" Bicycle Chain
70 tooth sprocket for 1/2" x 1/8" (#410) bicycle chain. 11.752" OD, 2.125" ID, 2.638" bolt circle diameter. Made of aircraft-grade tempered (hardened) aluminum alloy. Five 5.1mm ID mounting holes for M5x0.8 bolts. Compatible with 5-hole freewheel item # FWM-205 sold below.
Item # SPR-B70F5
$69.95


75 Tooth 5-Hole Freewheel Sprocket for 1/2" x 1/8" Bicycle Chain
75 tooth sprocket for 1/2" x 1/8" (#410) bicycle chain. 12.229" OD, 2.125" ID, 2.638" bolt circle diameter. Made of aircraft-grade tempered (hardened) aluminum alloy. Five 5.1mm ID mounting holes for M5x0.8 bolts. Compatible with 5-hole freewheel item # FWM-205 sold below.
Item # SPR-3575F5
$72.95


80 Tooth 5-Hole Freewheel Sprocket for 1/2" x 1/8" Bicycle Chain
80 tooth sprocket for 1/2" x 1/8" (#410) bicycle chain. 13.026" OD, 2.125" ID, 2.638" bolt circle diameter. Made of aircraft-grade tempered (hardened) aluminum alloy. Five 5.1mm ID mounting holes for M5x0.8 bolts. Compatible with 5-hole freewheel item # FWM-205 sold below.
Item # SPR-B80F5
$74.95


85 Tooth 5-Hole Freewheel Sprocket for 1/2" x 1/8" Bicycle Chain
85 tooth sprocket for 1/2" x 1/8" (#410) bicycle chain. 13.822" OD, 2.125" ID, 2.638" bolt circle diameter. Made of aircraft-grade tempered (hardened) aluminum alloy. Five 5.1mm ID mounting holes for M5x0.8 bolts. Compatible with 5-hole freewheel item # FWM-205 sold below.
Item # SPR-B85F5
$76.95


90 Tooth 5-Hole Freewheel Sprocket for 1/2" x 1/8" Bicycle Chain
90 tooth sprocket for 1/2" x 1/8" (#410) bicycle chain. 14.618" OD, 2.125" ID, 2.638" bolt circle diameter. Made of aircraft-grade tempered (hardened) aluminum alloy. Five 5.1mm ID mounting holes for M5x0.8 bolts. Compatible with 5-hole freewheel item # FWM-205 sold below.
Item # SPR-B90F5
$79.95

Freewheel Clutches


5-Hole Freewheel with 1.375" x 24 TPI Right Hand Threads
5-hole bicycle freewheel clutch with 1.375" x 24 TPI right hand (clockwise) threads. 2.125 OD sprocket mounting flange, 2.638" bolt circle diameter. Five sprocket mounting holes with M5x0.8 threads. Compatible with all sprockets and axle adapters sold on this page. 1.375" x 24 TPI (ISO) right hand (clockwise) threads are used on virtually all modern bicycle wheels.
Item # FWM-205

$19.95


Sprocket Mounting Bolts and Locknuts for 5-Hole Freewheels
Set of five quantity M5x0.8 x 14mm long bolts and M5x0.8 locknuts. Compatible with freewheel item # FWM-205 sold above.
Item # HDW-200

$2.95

Freewheel to Axle Adapters

For Metric Diameter Axles


Freewheel to Axle Adapter with Right Hand Threads for 20mm Axle
Freewheel adapter with 1.375" x 24 TPI right hand (counterclockwise) threads. 20mm ID, 0.9" wide, 6mm keyway, Two set screws, Made from zinc plated steel. Compatible with 5-hole freewheel item # FWM-205 sold above.
Item # FWM-ADAPTER20

$24.95


Freewheel to Axle Adapter with Right Hand Threads for 15mm Axle
Freewheel adapter with 1.375" x 24 TPI right hand (clockwise) threads. 15mm ID, 0.9" wide, 4mm keyway, Two set screws, Made from zinc plated steel. Compatible with 5-hole freewheel item # FWM-205 sold above.
Item # FWM-ADAPTER15

$24.95


4mm x 4mm x 25mm Axle Key
4mm x 4mm x 25mm steel axle key for freewheel to axle adapters with 4mm keyway.
Item # KEY-4425

$0.95


6mm x 6mm x 25mm Axle Key
6mm x 6mm x 25mm steel axle key for freewheel to axle adapters with 6mm keyway.
Item # KEY-6625

$0.95

For Standard Diameter Axles


Freewheel to Axle Adapter with Right Hand Threads for 1" Axle
Freewheel adapter with 1.375" x 24 TPI right hand (clockwise) threads. 1" ID, 0.9" wide, 1/4" keyway, Two set screws, Made from zinc plated steel. Compatible with 5-hole freewheel item # FWM-205 sold above.
Item # FWM-ADAPTER1

$24.95


Freewheel to Axle Adapter with Right Hand Threads for 3/4" Axle
Freewheel adapter with 1.375" x 24 TPI right hand (clockwise) threads. 3/4" ID, 0.9" wide, 3/16" keyway, Two set screws, Made from zinc plated steel. Compatible with 5-hole freewheel item # FWM-205 sold above.
Item # FWM-ADAPTER3

$24.95


Freewheel to Axle Adapter with Right Hand Threads for 5/8" Axle
Freewheel adapter with 1.375" x 24 TPI right hand (clockwise) threads. 5/8" ID, 0.9" wide, 3/16" keyway, Two set screws, Made from zinc plated steel. Compatible with 5-hole freewheel item # FWM-205 sold above.
Item # FWM-ADAPTER8

$24.95


3/16" x 3/16" x 1" Axle Key
3/16" x 3/16" x 1" steel axle key for freewheel to axle adapters with 3/16" keyway.
Item # KEY-316X1

$0.95


1/4" x 1/4" x 1" Axle Key
1/4" x 1/4" x 1" steel axle key for freewheel to axle adapters with 1/4" keyway.
Item # KEY-104X1

$0.95

Freewheel Tools


Four Notch Freewheel Removal Tool
Freewheel removal tool for both 4-notch and 8-notch freewheels. Works with freewheel clutch item # FWM-205 sold above. Professional quality tool made from nickel plated forged steel. Can be used to install freewheels however freewheels can be installed by hand and then tightened by the motor the first time that the vehicle is used.
Item # FWM-400
$9.95

Related Items: Bicycle Chain

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We carry chain sprockets for all types of electric and non-electric bicycles including BMX bikes, cruiser bikes, mountain bikes, and road bikes. The number symbol # is often dropped from the chain size so a #408 chain is a 408 chain, #410 chain is a 410 chain, a #415 chain is a 415 chain.

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