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EC #40 17 Tooth Quick Change Sprocket
4091 #40 17 Tooth Quick Change Sprocket
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EC #40 17 Tooth Quick Change Sprocket

Part Number: 4091
Online Price: $19.95
EC #40 17-Tooth Quick Change Sprocket – A-Type for EC Hub
Availability: In Stock.

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Description

EC #40 17-Tooth Quick Change Sprocket – A-Type for EC Quick Change Hubs


The EC 17-Tooth Quick Change Sprocket is part of our precision #40 pitch quick-change sprocket system, engineered to deliver fast, reliable gearing adjustments for racing and performance-driven transmissions. This A-Type flat sprocket is specifically designed to fit the EC Quick Change Hub and is ideal for fine-tuning your final drive ratio on the fly.


With a 17-tooth count, this sprocket provides a versatile middle ground between acceleration and top speed, making it a popular choice for balanced track setups or variable terrain.

Fitment Notice: This sprocket does not mount directly to Peerless 700 transmission shafts. It is only compatible with the EC Quick Change Hub (36 fine spline version).


Key Features:

  • Tooth Count: 17
  • Chain Pitch: #40
  • Sprocket Type: A-Type (flat, no hub extension)
  • Material: High-strength machined steel
  • Compatibility: EC Quick Change Hub (required)


Benefits:

  • Enables quick gear ratio swaps without removing the hub
  • Ideal for tuning drivetrain response based on track conditions
  • Lightweight A-type design for efficient power transfer
  • Compatible with EC sprockets ranging from 12T to 19T


Perfect For:

  • Racing Lawn Mowers
  • Go-Karts and Mini Bikes
  • Peerless-Based Transmission Builds with EC Hub
  • Competitive and Custom Drivetrain Applications

FAQ

1. Will this 17-tooth sprocket fit a Peerless 700 output shaft directly?

No, it will not fit directly. This sprocket is specifically designed for the EC Quick Change Hub (36-spline version) and will not mount to the stock Peerless shaft.


2. What is the benefit of choosing a 17T sprocket over other sizes?

The 17T provides a balanced gearing setup, offering a good compromise between acceleration and top-end speed—perfect for general racing conditions.


3. What does "A-Type" sprocket mean?

An A-Type sprocket is a flat sprocket with no integrated hub. It mounts flush to the EC Quick Change Hub, which holds the sprocket securely while reducing weight and complexity.


4. What chain pitch is this sprocket compatible with?

This sprocket is made for #40 roller chain, which has a 1/2" pitch and is widely used in racing, lawnmowers, and small-engine applications.


5. How many teeth options are available in the EC Quick Change system?

The EC Quick Change Sprocket series includes sizes from 12T to 19T, giving racers and builders plenty of options to dial in the perfect gear ratio.


6. Is the sprocket easy to change at the track?

Yes. The EC Quick Change system is built for fast swaps without removing the hub, making gear ratio adjustments easy and efficient between races or test runs.

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