My Account
My Garage
Shopping Cart

Shopping Cart

0 items in your Cart
View Cart
Subtotal
Track
My Order
MY GARAGE Select Vehicle
MY GARAGE

Vortex 491A-57 Silver 57-Tooth 520-Pitch Aluminum Rear Sprocket

Manufacturer

Picture for manufacturer Vortex

Part Number

491A-57
6 reviews
Sale Price

$94.31

Estimated ship date Saturday, November 28

Check out with

ApplePay
Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Vortex 491A-57 is a 57-tooth, 520-pitch aluminum rear sprocket finished in silver anodizing. Engineered for street and track use, it is part of Vortex Racing's industry-renowned 491A series — designed to deliver precise power transfer, reduced rotating mass, and extended service life compared to stock OEM sprockets.

Key Features:

  • 57-Tooth / 520-Pitch: High tooth count for increased low-end torque and acceleration tuning
  • Aerospace-Grade Aluminum Construction: Lightweight alloy reduces rotating mass for improved throttle response
  • 100% CNC Machined: Precision-manufactured to exact tolerances for superior concentricity and quiet operation
  • Patented Saber Tooth Groove Design: Vortex's unique tooth profile extends sprocket longevity and reduces chain wear
  • Silver Anodized Finish: Corrosion-resistant anodizing provides a clean, durable appearance
  • Made in the USA: Manufactured domestically to Vortex Racing's strict quality standards

The 491A-57 rear sprocket is an ideal upgrade for riders looking to fine-tune their gear ratio for improved low-end pull and acceleration. Compatible with 520-pitch drive chains, this sprocket is a proven choice for both street performance and competitive racing applications.

Swift with the orders

Saia is a horrible freight company. I used to deal with them at my previous job as a shipper. Box had a little damage, paint is rubbed off in a couple areas and swivel wheel assembly was bent. I was able to get it straight. Hopefully it will roll ok once it has weight on it. Not something I would expect for a $1500 item. I had to call Saia several times because I was getting a runaround on the delivery, they kept telling me they would schedule a delivery time. Never did, it showed up at my house unexpected, luckily my wife was still home. Seems like a good product though

The parts were shipped promptly, and were the correct ones. Excellent!

EASY TO NAVIGATE, FOUND EXACTLY WHAT I NEEDED!!

I'm a 60 year old man refitting a 50 year old sailboat. I'm sure our paths will cross again.

FAST SHIPPING, EASY CHECK OUT

Share icon
Return Policy
Returns are easy at Autoplicity

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy