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Motorcycle and ATV Gearing Guide

Sprockets from Rocky Mountain ATV/MC

Sprockets that are available in aluminum and steel. Find a wide selection of sprockets by Renthal, Primary Drive and more.

Latest Dirt Bike Sprockets Reviews – You could win up to $500 for reviewing products!

  • Supersprox Front Sprocket

    Supersprox Front Sprocket


    Super Sprox makes great stuff

    I routinely buy their products and and hands down get more life out of them than any other brand I've tried. Over 15 years I've tried a lot of brands, my whole family rides so I've maintained no less than 4 dirt bikes/atv at a time I'd highly recommend any Super Sprox items

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  • Eagle Mfg. Prevailing Torque Countershaft Nut

    Eagle Mfg. Prevailing Torque Countershaft Nut

    Colton in NY

    Must have upgrade if you're changing out sprockets ...

    Much easier to live with than the factory nut and lock washer. The lock washer can only be flattened and re-bent only so many times before the metal fatigues and it fails. Might as well just get rid of it altogether and use this fastener instead.

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  • Renthal Front Sprocket

    Renthal Front Sprocket

    Cody in AB

    Really good would definitely recommend

    Fits really good light weight used for racking on track and trail and with stands it

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  • Primary Drive Front Sprocket

    Primary Drive Front Sprocket

    Kevin in IL

    Perfect Fit

    Purchased for my son's 1993 TRX90. Bolted up with no issues. I like that it has the number of teeth stamped on it.

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  • Primary Drive Rear Steel Sprocket

    Primary Drive Rear Steel Sprocket

    Kevin in IL

    Easy reaplacement

    Bought for my son's '93 Honda TRX90. Exact fit with no issues. Replaced front sprocket at the same time. Looks brand new after a few runs.

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  • Renthal TwinRing Rear Sprocket

    Renthal TwinRing Rear Sprocket

    jerimia in GA

    Great sprocket

    This is a awsome sprocket race three races in muddy conditions on a 450 and shows no signs of wear I love the twin rings.

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