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 642A-45 Aluminum Rear Sprocket Conversion Sprockets - 520 45-Tooth

Manufacturer

Picture for manufacturer Vortex

Part Number

642A-45
12 reviews
Sale Price

$59.46

Estimated ship date Friday, November 27

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 Racing 642A-45 is a 45-tooth aluminum rear sprocket designed for 520 chain conversion applications. Built for performance-oriented street and track riders, this sprocket allows you to step down from a heavier OEM chain pitch to a lighter, more efficient 520 chain setup — reducing unsprung rotational mass and improving throttle response.

Key Features:

  • 45 teeth — ideal for performance tuning of acceleration and top-speed balance
  • 520 chain conversion compatible — designed to work with 520-pitch chains
  • Lightweight aluminum construction for reduced rotating mass
  • Precision CNC-machined for tight tolerances and consistent chain engagement
  • Anodized finish for corrosion resistance and durability
  • Part of Vortex Racing's trusted 642A sprocket series

Vortex Racing is a well-respected manufacturer in the powersports industry, known for producing high-quality sprockets and performance drivetrain components for sportbikes. The 642A-45 is a popular choice for riders looking to optimize their drivetrain gearing through a 520 chain conversion, shedding weight without sacrificing reliability.

Easy to find part and using amazon for billing is really a great feature!

Fast and simple

Not receive my order yet because I just made my order but so far the website is very professional love it and have amazing price

great price and availability on hard to find product

the order processes was quick and easy

fast ad easy to order fast shipping

Easy shopping for required part & easy check out and competitive prices.

great price

Very good website setup and easy to search.

Ok so far.

great!

Very pleased with product and shipping prices. Best price on the internet.Took a few to many days between order placement and shipping. Once the product was shipped the timing was very good.Talked with support-they were helpful and friendly.

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