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Sprockets > 8mm Chain Sprockets

8mm Chain Sprockets

Browse for sprockets by vehicle make and model.
  • 8mm chain is also known as T8F chain.

  • 8mm T8F chain and master links are available on our chain page.

Motor Sprockets Wheel Mount Sprockets Freewheel Mount Sprockets
     
Freewheel Clutches Sprocket Fasteners Freewheel to Axle Adapters

8mm Chain Sprockets for Motors


Nut and Washer for 8mm Left Hand Thread Motor Shafts
Sprocket nut and washer set for most electric scooter motors. Fits left hand threaded 8mm motor shaft ends. Compatible with MY1016, MY1020, MY6812, and ZY1020 electric motors.
Item # SPR-NW8

$1.95


Nut with Built-In Lock Washer for 11mm ID Keyed Motor Shaft Sprockets
Motor shaft nut for keyed 11mm ID sprockets with 4mm wide x 2mm deep keyways. Left hand threads. Compatible with SPR-825 sprocket sold below.
Item # NUT-8RW

$0.95

4mm x 4mm x 8mm Key Pin for Keyed Motor Shaft Sprockets
4mm x 4mm x 8mm key pin for sprockets with 4mm wide x 2mm deep keyways. Compatible with SPR-825 sprocket sold below.
Item # KEY-448

$0.95


9 Tooth 10mm Double D-Bore Sprocket for 8mm Chain
26mm (1") OD, 10.1mm x 8.6mm ID, 4mm thick. Fits 10mm motor shafts that have a 10mm x 8.5mm dual-flatted sprocket mounting area with a nut and washer on end to secure sprocket in place. Made from hardened steel with a black oxide finish. Compatible with MY1020 and ZY1020 electric motors.
Item # SPR-809

Compatible with MY1020 motors.

$9.95


10 Tooth 10mm Double D-Bore Sprocket for 8mm Chain
29mm (1-1/8") OD, 10.1mm x 8.6mm ID, 4mm thick. Fits 10mm motor shafts that have a 10mm x 8.5mm dual-flatted sprocket mounting area with a nut and washer on end to secure sprocket in place. Made from hardened steel with a black oxide finish. Compatible with MY1020 and ZY1020 electric motors.
Item # SPR-810

Compatible with MY1020 motors.

$9.95


11 Tooth 10mm Double D-Bore Sprocket for 8mm Chain
31.5mm (1-1/4") OD, 10.1mm x 8.6mm ID, 4mm thick. Fits 10mm motor shafts that have a 10mm x 8.5mm dual-flatted sprocket mounting area with a nut and washer on end to secure sprocket in place. Made from hardened steel with a black oxide finish. Compatible with MY1020 and ZY1020 electric motors.
Item # SPR-811

Compatible with MY1020 motors.

$9.95


11 Tooth 8mm D-Bore Sprocket for 8mm Chain
31.5mm (1-1/4") OD, 8.1mm x 7.1mm ID, 4mm thick. Fits motor shafts that have a 8mm x 7mm D-bore sprocket mounting area with a nut and washer on end to secure sprocket in place. Made from hardened steel with a black oxide finish.
Item # SPR-811D2

$9.95


11 Tooth Pinion Sprocket for 8mm Chain
31.5mm (1-1/4") OD, 14mm ID between bottoms of pinion teeth, 10.5mm ID between tops of pinion teeth. Made from hardened steel with a black oxide finish. Fits gear boxes with 14mm OD six tooth pinion shafts.
Item # SPR-812P1

$9.95


12 Tooth 10mm Double D-Bore Sprocket for 8mm Chain
34mm (1-5/16") OD, 10.1mm x 8.6mm ID, 4mm thick. Fits 10mm motor shafts that have a 10mm x 8.5mm dual-flatted sprocket mounting area with a nut and washer on end to secure sprocket in place. Made from hardened steel with a black oxide finish. Compatible with MY1020 and ZY1020 electric motors.
Item # SPR-812E1

Compatible with MY1020 motors.

$9.95


13 Tooth 10mm Double D-Bore Sprocket for 8mm Chain
36mm (1-7/16") OD, 10.1mm x 8.6mm ID, 4mm thick. Fits 10mm motor shafts that have a 10mm x 8.5mm dual-flatted sprocket mounting area with a nut and washer on end to secure sprocket in place. Made from hardened steel with a black oxide finish. Compatible with MY1020 and ZY1020 electric motors.
Item # SPR-813

Compatible with MY1020 motors.

$9.95


15 Tooth 10mm Double D-Bore Sprocket for 8mm Chain
42mm (1-11/16") OD, 10.1mm x 8.6mm ID, 4mm thick. Fits 10mm motor shafts that have a 10mm x 8.5mm dual-flatted sprocket mounting area with a nut and washer on end to secure sprocket in place. Made from hardened steel with a black oxide finish. Compatible with MY1020 and ZY1020 electric motors.
Item # SPR-815E1

Compatible with MY1020 motors.

$9.95


17 Tooth Pinion Sprocket for 8mm Chain
47mm (1-7/8") OD, 14mm ID between bottoms of pinion teeth, 10.5mm ID between tops of pinion teeth. Made from hardened steel with a black oxide finish. Fits gear boxes with 14mm OD six tooth pinion shafts.
Item # SPR-817

$9.95


25 Tooth 11mm Bore Sprocket for 8mm Chain
54mm (2-1/8") OD, 11mm ID, 4mm wide x 2mm deep keyway. 15.1mm wide hub. For 8mm chain. Made from hardened steel with a black oxide finish. Motor sprocket for MY1018Z and MY1016Z3 gear motors.
Item # SPR-825
$14.95

8mm Wheel Mount Chain Sprockets


38 Tooth Sprocket for 8mm Chain
100mm (4") OD, 29mm (1-1/8") ID, 4mm thick. 3 bolt mounting pattern. 6.2mm ID bolt holes. Mounting bolt holes are spaced 33mm (1-5/16") apart from center to center. Made from steel with a zinc plated finish.
Item # SPR-838B
$17.95


44 Tooth Sprocket for 8mm Chain
117mm (4-1/2") OD, 29mm (1-1/8") ID, 4mm thick. 3 bolt mounting pattern. 6.2mm ID bolt holes. Mounting bolt holes are spaced 33mm (1-5/16") apart from center to center. Made from steel with a zinc plated finish.
Item # SPR-844B
$19.95


44 Tooth Sprocket for 8mm Chain
117mm (4-1/2") OD, 35mm (1-3/8") ID, 4mm thick. 3 bolt mounting pattern. 6.2mm ID bolt holes. Mounting bolt holes are spaced 42mm (1-5/8") apart from center to center. Made from steel with a black enamel finish.
Item # SPR-844C
$19.95


54 Tooth Sprocket for 8mm Chain
140mm (5-1/2") OD, 32mm (1-1/4") ID, 4mm thick. 6 bolt mounting pattern. 6.2mm ID bolt holes. Adjacent mounting bolt holes are spaced 22mm (5/8") apart from center to center. Opposing mounting bolt holes are spaced 44mm (1-3/4") apart from center to center. Made from steel with a black enamel finish.
Item # SPR-854
$19.95


64 Tooth Sprocket for 8mm Chain
166mm (6-1/2") OD, 29mm (1.14") ID, 4mm thick. 3 bolt mounting pattern. 6.2mm ID bolt holes. Adjacent mounting bolt holes are spaced 33mm (1.3") apart from center to center. Mounting hole ID 6mm. Made from steel with a zinc plated finish.
Item # SPR-864
$19.95


74 Tooth Sprocket for 8mm Chain
190mm (7-1/2") OD, 35mm (1-3/8") ID, 4mm thick. 3 bolt mounting pattern. 6.2mm ID bolt holes. Mounting bolt holes are spaced 41mm (1-5/8") apart from center to center. Made from steel with a black enamel finish.
Item # SPR-874
$19.95

8mm Freewheel Mount Chain Sprockets


36 Tooth Sprocket for 8mm Chain
95mm (4") OD, 54mm (2-1/8") ID, 4mm thick. 4 bolt mounting pattern. 6.2mm ID bolt holes. Adjacent mounting bolt holes are spaced 47mm (1-3/8") apart from center to center. Made from steel with a black enamel finish. Bolts directly onto our 4-hole and 16-tooth freewheel clutches sold below.
Item # SPR-836F
$16.95


38 Tooth Sprocket for 8mm Chain
100mm (4") OD, 54mm (2-1/8") ID, 4mm thick. 4 bolt mounting pattern. 6.2mm ID bolt holes. Adjacent mounting bolt holes are spaced 47mm (1-3/8") apart from center to center. Made from steel with a black enamel finish. Bolts directly onto our 4-hole and 16-tooth freewheel clutches sold below.
Item # SPR-838F
$17.95


44 Tooth Sprocket for 8mm Chain
117mm (4-1/2") OD, 54mm (2-1/8") ID, 4mm thick. 4 bolt mounting pattern. 6.2mm ID bolt holes. Adjacent mounting bolt holes are spaced 47mm (1-3/8") apart from center to center. Made from steel with a zinc plated finish. Bolts directly onto our 4-hole and 16-tooth freewheel clutches sold below.
Item # SPR-844
$19.95


54 Tooth Sprocket for 8mm Chain
140mm (5-1/2") OD, 54mm (2-1/8") ID, 4mm thick. 4 bolt mounting pattern. 6.2mm ID bolt holes. Adjacent mounting bolt holes are spaced 47mm (1-3/8") apart from center to center. Made from steel with a zinc plated finish. Bolts directly onto our 4-hole and 16-tooth freewheel clutches sold below.
Item # SPR-854F
$19.95


62 Tooth Sprocket for 8mm Chain
161mm (6-5/16") OD, 54mm (2-1/8") ID, 4mm thick. 4 bolt mounting pattern. 6.2mm ID bolt holes. Adjacent mounting bolt holes are spaced 47mm (1-3/8") apart from center to center. Made from steel with a zinc plated finish. Bolts directly onto our 4-hole and 16-tooth freewheel clutches sold below.
Item # SPR-862F
$24.95


64 Tooth Sprocket for 8mm Chain
166mm (6-1/2") OD, 54mm (2-1/8") ID, 4mm thick. 4 bolt mounting pattern. 6.2mm ID bolt holes. Adjacent mounting bolt holes are spaced 47mm (1-3/8") apart from center to center. Made from steel with a zinc plated finish. Bolts directly onto our 4-hole and 16-tooth freewheel clutches sold below.
Item # SPR-864F
$24.95


72 Tooth Sprocket for 8mm Chain
186mm (7-5/16") OD, 54mm (2-1/8") ID, 4mm thick. 4 bolt mounting pattern. 6.2mm ID bolt holes. Adjacent mounting bolt holes are spaced 47mm (1-3/8") apart from center to center. Made from steel with a zinc plated finish. Bolts directly onto our 4-hole and 16-tooth freewheel clutches sold below.
Item # SPR-872F
$27.95

Freewheel Clutches

Freewheels with Right Hand Clockwise Threads


M35x1.00 CW Threads

Rear Wheel Freewheel Clutch (Right Side)
Electric scooter, dirt bike, and pocket bike freewheel clutch mechanism with for right hand side chains. This freewheel has four notches for installation and removal with a freewheel tool (sold below). Freewheel engages in the clockwise directions. 3-1/16" OD x 1-5/16" ID. 1/4" (6.2mm) bolt hole ID. Works with 2-1/8" (54mm) ID chain sprockets with four bolt mounting pattern. 6.2mm ID bolt holes. Adjacent mounting bolt holes are spaced 47mm (1-3/8") apart from center to center. Fits 35mm OD electric scooter and bike threaded wheel hubs. 34mm ID. M35x1.00 right-hand clockwise threads.
Item # FWM-120
$14.95

M35x1.00 CW Threads

Rear Wheel Freewheel Clutch (Right Side)
Electric scooter, dirt bike, and pocket bike freewheel clutch mechanism for right hand side chains. Freewheel engages in the clockwise direction. 3-1/16" OD x 1-5/16" ID. Works with 2-1/8" (54mm) ID chain sprockets with four bolt mounting pattern. This freewheel has 16 teeth and also works with standard single speed 1/2"x1/8" (#410) bicycle chain. Fits 35mm OD electric scooter and bike threaded wheel hubs. 34mm ID. M35x1.00 right-hand clockwise threads.
Item # FWM-100
$12.95

1.375" x 24 TPI CW Threads

Rear Wheel Freewheel Clutch (Right Side)
Electric bicycle freewheel clutch mechanism for right hand side chains. Freewheel engages in the clockwise direction. Compatible with freewheel to axle adapters old below. 3-1/16" OD x 1-5/16" ID. Works with 2-1/8" (54mm) ID chain sprockets with four bolt mounting pattern. This freewheel has 16 teeth and also works with standard single speed 1/2"x1/8" (#410) bicycle chain. Fits 1.375" OD bicycle threaded wheel hubs. 1-5/16" ID. 1.375" x 24 TPI right-hand clockwise threads.
Item # FWM-180
$12.95

Freewheels with Left Hand Counterclockwise Threads


M35x1.00 CCW Threads

Rear Wheel Freewheel Clutch (Left Side)
Electric scooter, dirt bike, and pocket bike freewheel clutch mechanism for left hand side chains. Freewheel engages in the counter clockwise directions. 3-1/16" OD x 1-5/16" ID. Works with 2-1/8" (54mm) ID chain sprockets with four bolt mounting pattern. This freewheel has 16 teeth and also works with standard single speed 1/2"x1/8" (#410) bicycle chain. Fits 35mm OD electric scooter and bike threaded wheel hubs. 34mm ID. M35x1.00 left-hand counterclockwise threads.
Item # FWM-160
$12.95

Sprocket Fasteners


Sprocket To Freewheel Nut and Bolt Set
Set of four stainless steel bolts and locknuts for attaching wheel sprockets to freewheel clutches. The bolts in this set have 16mm long M6x1.0 right-hand clockwise threads.
Item # HDW-100
$2.95


6mm x 20mm Sprocket, Wheel, and Motor Hex Socket Head Bolt
6mm hex socket head bolt that is compatible with many rear wheel sprockets, one and two piece wheels, and motors. This bolt has 20mm long M6x1.0 right-hand clockwise threads.
Item # HDW-B620

$0.50

Freewheel to Axle Adapters

For Metric Diameter Axles

1.375" x 24 TPI CW Threads

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 16-tooth freewheel item number FWM-180 sold above.
Item # FWM-ADAPTER20

$24.95

1.375" x 24 TPI CW Threads

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 16-tooth freewheel item number FWM-180 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

1.375" x 24 TPI CW Threads

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 16-tooth freewheel item number FWM-180 sold above.
Item # FWM-ADAPTER1

$24.95

1.375" x 24 TPI CW Threads

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 16-tooth freewheel item number FWM-180 sold above.
Item # FWM-ADAPTER3

$24.95

1.375" x 24 TPI CW Threads

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 16-tooth freewheel item number FWM-180 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 Clutch Tools


Four Notch Freewheel Removal Tool
Freewheel removal and installation tool for 4-notch freewheels. Works with freewheel item # FWM-120 sold above. This is a professional quality nickel plated forged steel tool.
Item # FWM-400
$9.95

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We carry replacement 8mm chain sprockets for electric motors, rear wheels, and axles. 8mm sprockets are used on electric scooters, electric pocket bikes, electric dirt bikes, electric go-karts, and many other types of small electric vehicles.

 

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