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65 Tooth Rear Wheel Sprocket for #25 Chain 5-1/4" OD2-1/8" ID 4 bolt mounting pattern. 1/4" (6.2mm) bolt hole ID. F4 mounting pattern (works with 4-hole and 16-tooth freewheels). Sprockets with F4 mounting pattern are compatible with F4 Freewheels.

68 Tooth Rear Sprocket for #25 Chain 138mm (5.43") OD26.1mm (1.03") ID3 bolt mounting pattern. 5.5mm (0.22") bolt hole ID. Adjacent bolt hole center to center distance 33mm (1.3"). 38mm (1.5") Bolt Circle Diameter. R32 mounting pattern.

70 Tooth Rear Sprocket for #25 Chain 143mm (5.63") OD, 29.1mm (1.15") ID, 4mm 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

SPR-2572, 72 tooth Rear Sprocket For #25 Chain

80 Tooth Rear Sprocket For #25 Chain 6-1/2" OD2-1/8" ID4 bolt mounting pattern.1/4" (6.2mm) bolt hole ID.F4 mounting pattern.Bolts directly onto our 4-hole and 16-tooth freewheel clutches.

Chain guard for 80 tooth rear sprocket item # SPR-2580. This chain guard bolts onto the sprocket with included mounting screws. Helps prevent chain from falling off of sprocket.

89 Tooth Rear Sprocket for #25 Chain 7-1/4" OD2-1/8" ID4 bolt mounting pattern. 1/4" (6.2mm) bolt hole ID. Bolts directly onto our 4-hole freewheel clutches. F4 mounting pattern.

Rear Sprocket for Currie, eZip, IZIP, GT, Mongoose, and Schwinn Electric Scooters Compatible with Currie, eZip, IZIP, GT, Mongoose, and Schwinn electric scooters. 90 teeth, 7-1/4" OD, 34mm (1-5/16") ID. 1.375" x 24 TPI right-hand clockwise threads. Has ISO standard threads that fit practically all modern bicycle wheels. SPR-2589F is a lower-priced 89-tooth freewheel sprocket that directly replaces this sprocket. ...

92 Tooth Rear Wheel Sprocket for #25 Chain R34 mounting pattern. 189mm (7.45") OD, 29.1mm (1.15") ID, 4mm 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 (BCD). Made from steel with a zinc-plated finish. Compatibility: Mongoose MGX 250 Electric Mini Bike Motovox MBxXSe Electric Mini Bike MotoTec 24V Electric Mini Bike Monster Moto 250 Watt Electric Mini Bike (MM-E250, MM-E250-PR,...

Sprocket with 10mm x 8.5mm Double D-Bore for #35 Chain For #35 chain.10 teeth.For motors with 10mm x 8.5mm double d-bore shafts.Hardened high carbon steel for long service life.

12 Tooth Freewheeling Sprocket for 1/2"x1/8" (#410) Bicycle Chain .Freewheels counter clockwise, as shown in puicture. Right hand clockwise threads.

14 Tooth Freewheeling Sprocket for #410 (1/2" x 1/8") Bicycle Chain