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    3. Dirt Bike Front Sprockets

    Dirt Bike Front Countershaft Sprockets

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    JT
    520 Front Countershaft Sprocket
    $10.49 - $29.99
    $8.99 - $25.99
    You save up to $4.98 (31%)
    (60)
    JT 520 Front Countershaft SprocketMade exclusively from the finest grade of C49 high carbon steel, JT Countershaft Sprockets are made to last with a lifespan greater than any other steel or aluminum s
    Closeout up to 9% off
    Sunstar
    520 Front Countershaft Sprocket
    $16.95 - $32.95
    $5.99 - $29.99
    You save up to $2.96 (9%)
    (16)
    Sunstar 520 Front Countershaft Sprocket Designed for 520 size OEM replacements or suitable conversions to 520 size chain and sprockets Manufactured from case-hardened chromoly steel for the ultimat
    Closeout up to 10% off
    Pro Taper
    520 Front Countershaft Sprocket
    $25.95
    $5.99 - $23.36
    You save up to $2.59 (10%)
    (7)
    Pro Taper 520 Front Countershaft Sprocket Precision broached and machined to the strictest standards Case hardened cro-moly steel Lightening holes keep sprocket light-weight Self-cleaning mud grooves
    JT
    530 Front Countershaft Sprocket
    $15.75 - $30.44
    $13.99 - $27.99
    You save up to $3.10 (15%)
    (32)
    JT 530 Front Countershaft Sprocket JT Sprockets are made exclusively from the finest Japanese 545C high carbon steel Heat treated and hand finished to meet or exceed OEM standards Outlasts any mild s
    Sunstar
    428 Front Countershaft Sprocket
    $14.95 - $24.95
    $13.99 - $22.99
    You save up to $1.96 (9%)
    (3)
    Sunstar 428 Front Countershaft Sprocket Manufactured from case-hardened chromoly steel for the ultimate in strength and durability “Parkerizing” surface treatment for rust and
    JT
    428 Front Countershaft Sprocket
    $9.99 - $18.88
    $6.99 - $15.99
    You save up to $2.89 (15%)
    (7)
    JT 428 Front Countershaft SprocketJT Sprockets are made exclusively from the finest Japanese 545C high carbon steel Heat treated and hand finished to meet or exceed OEM standards Outlasts any mild ste
    Sunstar
    420 Front Countershaft Sprocket
    $14.95 - $17.99
    $11.49 - $16.99
    You save up to $1.00 (6%)
    (2)
    Sunstar 420 Front Countershaft Sprocket Manufactured from case-hardened chromoly steel for the ultimate in strength and durability “Parkerizing” surface treatment for rust and
    JT
    420 Front Countershaft Sprocket
    $8.99 - $9.99
    $7.69 - $8.99
    You save up to $1.00 (10%)
    (4)
    JT 420 Front Countershaft SprocketJT Sprockets are made exclusively from the finest Japanese 545C high carbon steel Heat treated and hand finished to meet or exceed OEM standards Outlasts any mild ste
    JT
    420 To 428 Conversion Front Countersh...
    $9.99
    $7.49 - $8.99
    You save up to $1.00 (10%)
    (0)
    JT 420 To 428 Conversion Front Countershaft Sprocket Stop replacing chain and sprockets as much with one of these 420 to 428 JT conversion countershaft sprockets. Allows you to run the stronger 428
    Pro Taper
    420 Front Countershaft Sprocket
    $25.95
    $23.36
    You save $2.59 (10%)
    (0)
    Pro Taper 420 Front Countershaft Sprocket Precision broached and machined to the strictest standards Case hardened cro-moly steel Lightening holes keep sprocket light-weight Self-cleaning mud grooves
    Pro Taper
    428 Front Countershaft Sprocket
    $25.95
    $23.36
    You save $2.59 (10%)
    (0)
    Pro Taper 428 Front Countershaft Sprocket Precision broached and machined to the strictest standards Case hardened cro-moly steel Lightening holes keep sprocket light-weight Self-cleaning mud grooves

    Latest Reviews

    James (Brunswick, GA)

    Fit
    Finish
    Durability
    Features
    Cost Benefit

    Great Part

    This sprocket was ordered to mesh with a new rear sprocket on a friend's bike. The fit was perfect and he was riding the bike in less than an hour.

    James (Brunswick, GA)

    Fit
    Finish
    Durability
    Features
    Cost Benefit

    Great Part

    I ordered this part for a friend's bike .The fit was perfect, and he was riding the bike in less than an hour.

    James (Brunswick, GA)

    Fit
    Quality
    Installation
    Recommend

    Great Part

    This chain was replaced to mesh with a new front and rear sprocket. It has a nice appearance and is durable. I put my KX450F through a brutal course and when clean up maintenance was done, there was no measurable chain stretch. I think this is a high quality part.

    Marc-Andre (Blainville, QC)

    Fit
    Quality
    Installation
    Recommend

    Stronger chain than stock, good results

    It was time to change my rusted stock chain that was worn out and about to break. The new one, rated for ~8,000 lbs, is way stronger than my previous chain ~6,000 lbs. Seem promising, after 250km of hard riding, it didn't stretch at all! Also, I bought a longer chain because the correct one was out of stock. It was cheaper and fairly easy to adjust myself. Adjustment and installation was easy with the proper chain riveting tool. I ride a Kawasaki Ninja 250R 2012.

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