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13 Tooth 10mm Bore Sprocket with Pin for #25 Chain 1-1/8" OD10mm IDAttaches to the motor shaft with included 3mm x 20mm roll pin.

15 Tooth Freewheel Motor Sprocket for #25 Chain Used on some models of eZip, IZIP, Currie, Schwinn, Mongoose, and GT electric scooters. Roller clutch with one-way bearing. Rotates freely in one direction and fixed in the other direction. 15 tooth sprocket for #25 roller chain. Fits 8mm shaft with 10mm collar. 3mm hole for roll pin. Roll pin included with sprocket. Sprocket OD 34mm. Overall length of sprocket assembly 29mm.Works with motor that spin counterclockwise (CCW).  ...

19 Tooth 11mm Bore Sprocket for #25 Chain 1-5/8" (40.1mm) OD.11mm ID.4mm wide x 2mm deep keyway.9mm wide hub.For MY1016Z, MY1016Z3, and MY1018Z gear motors.Made from hardened steel with a black oxide finish.

For #25 and #25H chain. 47 teeth. 3-7/8" OD. R34 mounting pattern. 29.1mm (1-1/8") ID. 39mm bolt circle diameter. Three 6.2mm (1/4") ID bolt holes. Adjacent bolt holes are spaced 33.77mm center to center distance apart from each other.Made from steel with a zinc-plated finish. 

47 Tooth Rear Sprocket For #25 Chain98mm OD29mm ID4 Bolt Holes6.5mm ID Bolt Holes27mm Adjacent Bolt Hole Center To Center DistanceFits Razor E100 Series Scooters (+ Many Others)

47 Tooth Sprocket for #25 Chain 3-7/8" OD2-1/8" IDF4 mounting pattern. 1/4" (6.2mm) bolt hole ID. Bolts directly onto our 4-hole and 16-tooth freewheel clutches.

55 Tooth Rear Wheel Sprocket for #25 Chain 4-1/2" OD2-1/8" ID1/4" (6.2mm) bolt hole ID.Bolts directly onto our 4-hole and 16-tooth freewheel clutches. F4 mounting pattern.

55 Tooth Rear Sprocket for # 25 Chain 114mm (4-1/2") OD29.1mm (1.15") ID4mm thick. 3 bolt mounting pattern. 6.2mm (0.24") ID bolt holes. Mounting bolt holes are spaced 33.77mm (1.33") apart from center to center. 39mm bolt circle diameter. Made from steel with a zinc plated finish. R34 mounting pattern. Compatibility: EVO 500 Electric ScooterPlus Many Other Makes and Models ...

65 Tooth Rear Sprocket for # 25 Chain 134mm (5.28") OD29.1mm (1.15") ID4mm thick. 3 bolt mounting pattern. 6.2mm (0.24") ID bolt holes. Mounting bolt holes are spaced 33.77mm (1.33") apart from center to center. 39mm bolt circle diameter. Made from steel with a zinc-plated finish. R34 mounting pattern.