The STG Difference Free Domestic Shipping For Orders Over $99 Hassle Free Returns No Restocking Fees Price Match Guarantee Customer Rewards, Earn STG Cash

Vortex / EK Kawasaki Ninja 400 18-22 Race 520 Chain and Sprocket Kit

Click to see 3 more pictures
$208.29 $177.91
(You save $30.38)

Customer Service

  • 888.784.4327
  • Monday-Friday
  • 10am to 6pm EST
  • Saturday
  • Closed
  • Free Domestic Shipping for Orders over $99Any domestic order (lower 48 United States) over $99.00 ships for free! If your item isn't over $99 but your total cart value is, you'll qualify for free shipping as well! For more information on our Shipping Policies, click here.
  • Hassle Free Returns No Restocking FeesHere at STG we want any return or exchange to be quick and pain-free. You can contact anyone here to expedite your return or exchange and we'll make sure it's handled ASAP. For more information on our policies, click here.
  • Price Match GuaranteeFind a better price? If you have we will match it! Call us at 888.784.4327 or submit a request here and our team will make it happen. *Some exclusions may apply.

Frequently Bought Together

Please choose Options for all selected Products

  • Choose Options

Lower your rotating drag substantially (just like Max Van on his bike) with this custom picked chain and sprocket kit! We have been running this set up on the STG Yamaha R3 Project Bike for 2 seasons now with excellent results. Replacing the OEM o-ring chain and sprockets with this kit resulted in a consistent 3-4 mph more top speed on the straight at Grattan Raceway (our home track). This was measured using the AiM Solo DL GPS Lap Timer.

We feel this kit is a much better option than the 415 kits that have shown to lack reliability over and over again. Nothing is worse than losing a race or track time to a preventable mechanical failure. On the R3 we ran the same chain for more than 1 full season with a ton of laps ran with zero issues.

STG recommends this kit for track use only.

Kit Contents:

  • Your choice of 14 or 15 tooth Vortex steel front sprocket
  • Your choice of 41-44 tooth Vortex colored aluminum sprocket, available in standard, CAT5, or F5 Hardcoat
  • Your choice of color of a 120 link EK 520MXR3D chain, with clip style master link.

Note:The 520MXR3D chain is a non o-ring chain. STG recommends more chain cleaning and lubrication than you would perform on an o/x-ring chain. This maintenance is key to getting the maximum performance and life from this chain kit.