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Sprockets >
Freewheel Clutches
Freewheel Clutches
Freewheel Clutch Test
To test a freewheel
clutch simply turn the scooter or bike on and accelerate the throttle a little. If the chain moves and the rear sprocket spins but the back wheel does not move then
the freewheel clutch is defective. For tips on how to remove the old freewheel
clutch please visit the freewheel clutch
removal page.
Freewheel Clutches for Right Hand Side Chains
Right hand side freewheels are the most common type of freewheel used on
most electric scooters and bikes. If the chain is on your right hand side when sitting on the scooter or bike then the vehicle uses a right side freewheel.
F4
M35x1.00
CW Threads
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Rear Wheel Freewheel Clutch (Right Side)
Electric scooter, dirt bike, and pocket bike freewheel clutch mechanism for right hand side chains. F4 sprocket mounting pattern. Freewheel engages in the
clockwise directions. 3-1/16" OD x 1-11/32" ID. Works with 2-1/8" (54mm) ID chain sprockets with four bolt mounting pattern.
Adjacent mounting bolt holes are spaced 47mm (1.85") apart from center to center.
Fits 34mm (1.34") OD threaded wheel hubs. 34mm (1.34") ID. M35x1.00 right-hand threads.
Item # FWM-125 |
$14.95
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F4
M35x1.00
CW Threads
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Rear Wheel Freewheel Clutch (Right Side)
Electric scooter, dirt bike, and pocket bike freewheel clutch mechanism with for right hand side chains.
F4 sprocket mounting pattern.
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 1-11/32" ID. Works with 2-1/8"
(54mm) ID chain sprockets with four bolt mounting pattern. Adjacent mounting bolt holes are spaced 47mm (1.85") apart from center to center. Fits 34mm (1.34") OD threaded wheel hubs. 34mm (1.34") ID. M35x1.00 right-hand threads.
Item # FWM-120 |
$14.95
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F4
M35x1.00
CW Threads
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Rear Wheel Freewheel Clutch (Right Side)
Electric scooter, dirt bike, and pocket bike freewheel clutch mechanism for right hand side chains. F4 sprocket mounting pattern. 16-tooth.
Freewheel engages in the clockwise direction. 3-1/16" OD x 1-11/32" 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 34mm (1-5/16") OD
threaded wheel hubs. 34mm (1-5/16") ID. M35x1.00 right-hand threads.
Item # FWM-100
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$12.95
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F5
1.375" x 24 TPI
CW Threads
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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. F5 sprocket mounting pattern. This freewheel has four notches for installation and removal with a freewheel tool (sold below). 2.125 OD sprocket mounting flange, 2.638" bolt circle diameter. Five sprocket mounting holes with M5x0.8 threads. 1.375" x
24 TPI (ISO) right hand (clockwise) threads are used on virtually all modern bicycle wheels.
Item # FWM-205
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$19.95
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F4
1.375" x 24 TPI
CW Threads
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Rear Wheel Freewheel Clutch (Right Side)
4-hole bicycle freewheel clutch with 1.375" x 24 TPI right hand (clockwise) threads. F4 sprocket mounting pattern.
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 1-11/32" ID. Works with 2-1/8"
(54mm) ID chain sprockets with four bolt mounting pattern. Adjacent mounting bolt holes are spaced 47mm (1.85") apart from center to center. 1.375" x 24 TPI (ISO) right hand (clockwise) threads are used on virtually all modern bicycle wheels.
Item # FWM-175 |
$14.95
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F4
1.375" x 24 TPI
CW Threads
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Rear Wheel Freewheel Clutch (Right Side)
Electric bicycle freewheel clutch mechanism for right hand side chains. F4
sprocket mounting pattern. 16-tooth.
Freewheel engages in the clockwise direction. 3-1/16" OD x 1-11/32" 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 1-3/8" OD
threaded wheel hubs. 1-5/16" ID. 1.375 x 24 TPI right-hand threads.
Item # FWM-180
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$12.95
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F6
M35x1.00
CW Threads
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Rear Axle Freewheel Clutch with F6 Mounting Pattern
Most commonly used on electric three-wheel vehicles such as rickshaws and
cargo tricycles.
Freewheel engages in the clockwise directions. 3-3/4" OD x 1-11/32" ID. Four 8mm ID bolt holes. 80mm bolt
circle diameter (BCD). Adjacent mounting bolt holes are spaced
56.5mm (2.22") apart from center to center. 34mm (1.34") ID. M35x1.00 right-hand threads.
Item # FWM-164 |
$16.95
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12 Tooth Freewheeling Sprocket for 1/2"x1/8" (#410) Bicycle Chain (Right Side)
Roller clutch sprocket with one-way bearing. Rotates freely in one direction; fixed in other direction. 12 tooth sprocket
for 1/2"x1/8" (#410) bicycle chain. Fits 18mm threaded hub or shaft.
Right hand clockwise threads. Sprocket OD: 54mm. Overall
length of sprocket: 25mm. M18x1.00 right-hand threads.
Item # SPR-41012F |
$13.95
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14 Tooth Freewheeling Sprocket for 1/2"x1/8" (#410) Bicycle Chain (Right Side)
Roller clutch sprocket with one-way bearing. Rotates freely in one direction; fixed in other direction. 14 tooth sprocket
for 1/2"x1/8" (#410) bicycle chain. Fits 18mm threaded hub or shaft.
Right hand clockwise threads. Sprocket OD: 62mm. Overall
length of sprocket: 25mm. M18x1.00 right-hand threads.
Item # SPR-41014F |
$14.95
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12 Tooth Freewheel Sprocket with 11mm Bore for 1/2"x1/8" Bicycle Chain
Motor freewheel sprocket for MY1018Z and MY1016Z3 gear motors. Motor's shaft must rotate
clockwise to use this sprocket. 1-15/16" (50mm) OD, 11mm ID, 4mm wide x 2mm deep
keyway. 12 tooth sprocket for 1/2"x1/8" (#410) bicycle chain.
Item # SPR-4101211FW
Compatible with our 250-450 Watt gear motors.
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$21.95
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M35x1.00
CW Threads
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18 Tooth Freewheel Sprocket for 1/2" x 1/8" (#410) Bicycle Chain (Right-Hand Threads)
18 tooth sprocket for 1/2" x 1/8" (#410) bicycle chain. Roller clutch sprocket with one-way bearing.
Rotates freely in one direction and fixed in the other direction. Freewheel
engages in the clockwise direction. 3-5/16" OD x 1-5/16" ID. M35x1.00
right hand (CW / clockwise) threads. This thread size fits virtually all electric scooter, dirt bike, and pocket bike wheels however it is not a common size for bicycles.
Item # SPR-41018F-M |
$15.95
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1.375" x 24 TPI
CW Threads
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18 Tooth Freewheel Sprocket for 1/2" x 1/8" (#410) Bicycle Chain (Right-Hand Threads)
18 tooth sprocket for 1/2" x 1/8" (#410) bicycle chain. Roller clutch
sprocket with one-way bearing. Rotates freely in one direction and fixed in the
other direction. Freewheel engages in the clockwise direction. 3-5/16" OD x
1-5/16" ID. 1.375 x 24 TPI right-hand (CW / clockwise) threads.
This thread size fits virtually all bicycle wheels however it is not a common size for electric scooters, dirt bikes, or pocket bikes.
Item # SPR-41018F-ISO |
$15.95
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Freewheel Clutches for Left Hand Side Chains
Left hand side freewheels are less commonly used than right hand freewheels.
If the chain is on your left hand side when sitting on the scooter or bike then the vehicle uses a left side freewheel.
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F4
M35x1.00
CCW Threads
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Rear Wheel Freewheel Clutch (Left Side)
Electric scooter, dirt bike, and pocket bike freewheel clutch mechanism for left hand side chains.
F4 sprocket mounting pattern. 16-tooth. 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 (1-3/8") OD threaded wheel hubs. 34mm (1-5/16") ID. M35x1.00 left-hand
(counterclockwise) threads.
Item # FWM-160
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$12.95
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Freewheel Clutch Tools
Freewheel Clutch Mounting Hardware
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F4
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Sprocket to Freewheel Nut and Bolt Set
Stainless steel bolt and locknut hardware set used for attaching sprockets
to freewheel clutches. For sprockets and freewheels with F4 mounting pattern. Includes four bolts and four locknuts.
Item # HDW-100 |
$2.95
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F5
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Sprocket Mounting Bolts and Locknuts for 5-Hole Freewheels
Set of five quantity M5x0.8 x 16mm long bolts and M5x0.8 locknuts. For sprockets
and freewheels with F5 mounting pattern. Compatible
with freewheel item # FWM-205 sold above.
Item # HDW-200
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$2.95
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For FWM-164
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Sprocket to Freewheel Nut and Bolt Set for FWM-164
Stainless steel bolt and locknut hardware set used for attaching a sprocket
to the FWM-164 freewheel clutches. Includes four bolts and four locknuts.
Item # HDW-164 |
$2.95
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Freewheel and Brake to Threaded Wheel Hub Spacer with 35mm ID
Freewheel and brake to threaded wheel hub spacer. Works with both M35x1.00 and 1.375"
x 24 TPI freewheels. 35mm ID, 42mm OD, 2.5mm thick. Made from yellow zinc plated steel.
Item # HDW-3525
Installation Example
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$1.95
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Freewheel Clutch Compatible Sprockets
Freewheel clutch compatible sprockets are available for the chain sprockets and belt cogs listed below.
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