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

M4 ECSTAR Suzuki GSX-R1000 17-22 Vortex / EK 520 Chain and Sprocket Kit

Click to see 6 more pictures
$376.89 $319.48
(You save $57.41)

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

This is the same chain and sprocket kit used on the M4 ECSTAR Suzuki GSXR 1000 ridden by Jake Lewis in MotoAmerica. All of the parts in this kit are used on the Team Bike with Real Race Proven Results and Performance. In racing drive-train components are subjected to the most extreme conditions and failure is not an option. Vortex Steel 520 front sprockets and F5 Hardcoat Aluminum rear sprockets are proven performers, making them a simple choice. Team M4 ECSTAR Suzuki tested multiple chains on the latest GSXR 1000 in search of low friction, light weight, low stretch and reliable performance. Of the chains they tested the EK 3D GP 520 Chain delivered the best results and the best option for this kit.

We recommend this kit for racing, track day riders as well as street riders looking to reduce the weight and increase the performance of thier GSXR 1000. On the M4 ECSTAR STG Suzuki GSXR 1000R Project Bike we are running the most used gearing combination on Jake Lewis's GSXR 1000 which is a 16 tooth front (one tooth down from stock), 41 tooth rear (4 teeth down from stock) and 118 links in the EK 3D Chain (2 links longer than stock). Using the 16 front / 41 tooth rear and 118 links the final ratio is a little taller than stock and weighs 2.15 lbs less than the stock 525 kit does. The wheel base is longer than stock which will have a positive impact on stability and handling. At 118 links of length with a 16 tooth front sprocket you can run a 41, 42 or 43 tooth rear sprocket without making a change to chain length if you need to fine tune the gearing for a particular track.

  • Vortex 520 F5 Hardcoat rear aluminum sprocket for lightweight and durability
  • Vortex 520 Steel front sprocket
  • EK 3D 520GP X-Ring Roadrace Chain 120 Links with rivet link

Need more 520 Chain and Sprocket Kit Information? STG 520 Chain and Sprocket Kit Guide Link

STG GSXR 1000R Project Bike Vortex Chain and Sprocket Kit Breakdown:

Vortex 520 F5 Hardcoat Aluminum Rear Sprocket

Vortex 520 F5 Hardcoat Aluminum Rear Sprocket:

  • The Vortex F5 PTE Hardcoat Aluminum Rear Sprocket is built for endurance.
  • Hard anodized aerospace aluminum with a jet black dye.
  • PTFE coating improves lubricity and durability. This is the most durable aluminum rear sprocket in the Vortex Sprocket line.
Vortex Suzuki 520 Steel Front Sprocket

Vortex Suzuki 520 Steel Front Sprocket:

  • The Vortex Steel Front Sprockets are precision manufactured and induction hardened to precise tolerances.
  • Zinc coated to resist corrosion and drilled lightening holes to reduce rotating mass - they are built to last.
EK 3D 520GP X-Ring Roadrace Chain

EK 3D 520GP X-Ring Roadrace Chain:

Motion Pro PBR Chain Tool 08-0470

Motion Pro PBR Chain Tool 08-0470: