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EC #40 12 tooth Quick Change Sprocket
4086 #40 12 tooth Quick Change Sprocket
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EC #40 12 tooth Quick Change Sprocket

Part Number: 4086
Online Price: $17.95
EC #40 12-Tooth Quick Change Sprocket – A-Type for EC Hub
Availability: In Stock.

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Description

EC #40 12-Tooth Quick Change Sprocket – A-Type for EC Quick Change Hub


The EC 12-Tooth Quick Change Sprocket is the lowest tooth-count option in our EC quick change sprocket lineup, engineered for maximum torque and aggressive acceleration. Designed for use with #40 pitch chain and the EC Quick Change Hub, this A-Type sprocket (flat, hubless design) is ideal for short tracks, tight corners, or builds needing low-speed pulling power.


Made from precision-machined, high-strength steel, the 12T sprocket gives you the tuning edge in high-demand racing and off-road applications. Whether you're launching out of corners or crawling with torque-heavy gearing, this sprocket is built to deliver.


Fitment Notice: This sprocket is not directly compatible with OEM Peerless 700 shafts. It is designed to work only with EC Quick Change Hubs (36 fine spline).


Key Features:

  • Tooth Count: 12
  • Chain Pitch: #40
  • Sprocket Type: A-Type (flat, no hub)
  • Material: Precision-machined steel for durability
  • Compatibility: EC Quick Change Hub (36-spline) only


Benefits:

  • Highest torque output in EC sprocket lineup
  • Perfect for tight tracks, technical courses, or heavy starts
  • Fast and easy sprocket changes without removing the hub
  • Compatible with EC 12–19T sprocket system


Best For:

  • Racing Lawn Mowers
  • Torque-Focused Builds
  • Short Track & Technical Racing
  • Peerless-Based Drivetrains Using EC Quick Change Hub

FAQ

1. What makes the 12T sprocket different from larger options?

The 12T provides the highest torque output of the EC quick change sprocket range, giving you faster starts and better low-end power—perfect for short or technical tracks.


2. Will this fit on a Peerless 700 transmission shaft directly?

No. This sprocket requires the EC Quick Change Hub (36 spline) and will not mount directly to a Peerless 700 output shaft.


3. What type of chain does it use?

It’s designed for use with #40 roller chain, which is standard in performance racing lawn mowers, go-karts, and small-engine equipment.


4. What is an A-Type sprocket?

A-Type sprockets are flat with no integrated hub, designed to mount flush to EC’s Quick Change Hub for a compact and efficient drivetrain setup.


5. Can I use this sprocket with other quick change systems?

No. This sprocket is specifically engineered for the EC Quick Change Hub system and may not be compatible with other brands or designs.


6. What other sizes are available in the EC quick change line?

EC’s Quick Change system includes sprockets from 12T to 19T, allowing you to adjust gear ratios quickly to match your track conditions or performance needs.

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