What is the main benefit of a gear drive camshaft over a chain drive?

A gear drive camshaft eliminates the timing chain, which can stretch and develop slack over time. This results in more precise valve timing, leading to improved engine performance and reliability, especially in modified engines.

Can I use my stock starter with this Easy Start camshaft?

Yes, the 'Easy Start' feature is specifically designed to allow your stock starter to engage and start the engine, even with the increased compression and modified timing that this camshaft provides. This helps prevent excessive strain on your starter.

What compression ratios and engine sizes is this camshaft kit designed for?

This 585GE cam is intended for 88 to 96 cubic inch engines with compression ratios from 10.0:1 to 10.5:1. It's also suitable for 100 and 107 cubic inch engines with compression ratios between 9.7:1 and 10.5:1.

S&S Cycle 2006 BT Dyna Easy Start 585GE Gear Drive Camshaft Kit

Specifications

Brand: S&S Cycle
Part #: 106-5225
UPC: 106-5225

S&S Cycle 2006 BT Dyna Easy Start 585GE Gear Drive Camshaft Kit

Name: S&S Cycle 2006 BT Dyna Easy Start 585GE Gear Drive Camshaft Kit
Brand: S&S Cycle
Price: 1070.95 USD
Availability: InStock

$1070.95

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 2006 BT Dyna Easy Start 585GE Gear Drive Camshaft Kit. Improves valve timing accuracy by eliminating chain lash.

Key Features

Fits 2006 Harley-Davidson Dyna and 2007-'16 Big Twin models.
Gear drive design eliminates timing chain lash for improved valve timing accuracy.
Easy Start feature allows use of the stock starter for engine ignition.
Designed for 88-96 inch engines with 10.0:1 to 10.5:1 compression.
Suitable for 100-107 inch engines with 9.7:1 to 10.5:1 compression.
Can be used with stock valve springs.

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Will this fit your vehicle?

Product Details

If you're looking to get the most out of your Harley-Davidson's engine, especially if you're rebuilding the top end or aiming for improved performance, a gear drive camshaft kit like this S&S Cycle 585GE is a solid choice. This kit is designed to replace your stock timing chain setup with a more precise gear drive system. This means no more chain stretch or slack, which translates to more accurate valve timing. That accuracy is key for getting the most power and efficiency out of your engine, especially when you're running higher compression ratios.

The S&S Cycle 585GE is built for 88 to 96 cubic inch engines with compression ratios between 10.0:1 and 10.5:1, and also works well with 100 and 107 cubic inch engines in the 9.7:1 to 10.5:1 range. A notable feature is the 'Easy Start' design, which allows you to use your stock starter to fire up even modified engines, avoiding the extra strain that can come with aggressive cams. This kit comes complete with the camshafts already fitted with their inner gears, and all the necessary installation hardware, making it a comprehensive package for your engine build. It's designed to work with your stock valve springs, simplifying the installation process.

This gear drive camshaft kit fits a wide range of Harley-Davidson Big Twin models, including popular bikes like the Dyna Super Glide, Street Glide, and Heritage Softail Classic. By eliminating the timing chain, you gain a more reliable and consistent valve train operation, which is crucial for performance and longevity. This is a significant upgrade for anyone looking to fine-tune their engine's performance and ensure precise timing.