What is the advantage of a gear drive camshaft?

A gear drive camshaft meshes directly with the drive gears, eliminating the stock timing chain. This offers more precise valve timing control and can reduce the mechanical noise associated with a chain system.

Is this camshaft compatible with all Big Twin Dyna models from 1999-2006?

This camshaft is designed for Big Twin Dyna models within the 1999-2006 model years. It's always recommended to verify fitment with the manufacturer's specific application guide.

Can this camshaft be shipped to California?

No, this camshaft is not CARB approved and cannot be shipped to California due to emissions regulations.

S&S Cycle Gear Drive Camshaft 106-4839

Name: S&S Cycle 99-06 BT Dyna Easy Start 640GE Gear Drive Camshaft
Brand: S&S Cycle
SKU: s-s-cycle-s-s-cycle-99-06-bt-dyna-easy-start-640ge-gear-drive-camshaft-t14-663421
Price: 673.95 USD
Availability: BackOrder

S&S Cycle 99-06 BT Dyna Easy Start 640GE Gear Drive Camshaft

$673.95

On Backorder

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

S&S Cycle 99-06 BT Dyna Easy Start 640GE Gear Drive Camshaft.

Key Features

Fits 1999-2006 Big Twin Dyna models.
Gear drive design for precise timing and reduced valvetrain noise.
640GE camshaft profile offers improved torque and responsiveness.
Directly meshes with stock or aftermarket drive gears.

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Product Details

S&S Cycle has been a well-known name in performance V-twin engines for decades, building a reputation for well-built components that improve power and reliability. This Easy Start 640GE Gear Drive Camshaft is a prime example of their commitment to enhancing your Big Twin Dyna motorcycle.

This camshaft is designed to give your 1999-2006 Big Twin Dyna a noticeable boost in performance. The gear drive design means it meshes directly with the stock or aftermarket drive gears, eliminating the need for the stock chain drive system. This not only simplifies the valvetrain but also offers more precise timing and can reduce mechanical noise. The 640GE profile is specifically tuned for a strong torque curve, making your ride feel more responsive, especially in the lower to mid-range RPMs, which is perfect for everyday riding and spirited cruising.

When installing this camshaft, remember that it is not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper fitment and procedure. This camshaft is a significant upgrade for those looking to get more out of their Big Twin Dyna.