What is the main benefit of installing a 31-tooth pinion gear?

Installing a 31-tooth pinion gear changes your motorcycle's final drive ratio. This can result in improved acceleration or a different engine RPM at highway speeds, allowing you to tune the bike's performance to your preference.

Does this pinion gear come with any installation hardware?

This listing is for the 31-tooth pinion gear itself. It does not include any additional installation hardware. Always refer to the manufacturer's service manual for recommended installation procedures and required components.

What is the manufacturer's warranty on this S&S Cycle pinion gear?

S&S Cycle typically offers a limited warranty on their drivetrain components. For specific details regarding the warranty period and coverage for this pinion gear, please consult the documentation provided by S&S Cycle or contact their customer support.

S&S Cycle Pinion Gear 31 Tooth 330-0626

Name: S&S Cycle 07-17 31 Tooth Undersized Pinion Gear
Brand: S&S Cycle
Price: 132.95 USD
Availability: InStock

S&S Cycle 07-17 31 Tooth Undersized Pinion Gear

$132.95

On Backorder — Expected to ship by May 7, 2026

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

S&S Cycle 31 tooth pinion gear for 2017-2021 Harley-Davidson models. Helps adjust final drive ratio.

Key Features

Fits 2017-2021 Harley-Davidson models including Road King, Street Glide, and Fat Boy 114.
Features 31 teeth for altering the final drive ratio.
Designed to work with the motorcycle's transmission and final drive.
From S&S Cycle, a well-known name in motorcycle performance parts.

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Will this fit your vehicle?

Product Details

This is the S&S Cycle 31-tooth pinion gear, part number 330-0626. It's designed to fit a range of Harley-Davidson motorcycles from 2017 through 2021, including models like the Road King, Street Glide, and Fat Boy 114. This gear is a key component in your motorcycle's drivetrain, working with the transmission and final drive to put power to the rear wheel.

The primary reason you'd look at a different pinion gear is to change the final drive ratio. A 31-tooth gear, compared to a stock gear, will alter how the engine RPM relates to road speed. This can be useful for tuning your bike's performance, whether you're looking for improved acceleration off the line or a slightly different cruising RPM at highway speeds. S&S Cycle is well-known for making solid drivetrain components, and this gear is built to handle the demands of a motorcycle drivetrain.

When installing a new pinion gear, it's important to ensure all related drivetrain components are in good condition. Refer to the manufacturer's service manual for the correct installation procedures and any specific torque specifications.