Twin Power Twin Cam Cam Chain Primary — 99-06 Exc 06 Dyna

SKU: TWP591207
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About TwinPower

TwinPower engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full TwinPower lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Enhance Your Twin Cam Engine's Timing with Twin Power Cam Chain

Ensure precise valve timing and smooth engine operation with the Twin Power Twin Cam Primary Cam Chain. Specifically designed for 1999-2006 Harley-Davidson Twin Cam models (excluding 2006 Dyna models), this high-quality chain replaces Harley-Davidson part number 25610-99, offering superior performance and durability.

Product Features:

  • Precision Ground Side Plates: Engineered for exceptionally smooth operation, reducing friction and wear within the cam drive system.
  • O.E. Equivalent or Superior: Manufactured to meet or exceed the specifications of the original equipment chain, ensuring reliable performance.
  • Designed for Twin Cam: Perfectly fits 1999-2006 Harley-Davidson Twin Cam engines, excluding 2006 Dyna models.
  • Replaces H-D 25610-99: A direct and dependable replacement for the stock primary cam chain.
  • Made in Japan: Manufactured with Japanese precision and quality control, guaranteeing a high-quality product.
  • Durable Construction: Built to withstand the rigors of high-performance engines, ensuring long-lasting reliability.

The cam chain is a critical component in your engine's valvetrain, responsible for synchronizing the camshaft and crankshaft. A worn or stretched cam chain can lead to incorrect valve timing, resulting in reduced power, poor performance, and potential engine damage. This Twin Power cam chain offers a reliable solution for maintenance or performance upgrades.

Invest in the quality and precision of Twin Power components to keep your Harley-Davidson Twin Cam running at its peak. Experience smoother operation and peace of mind with this premium cam chain.

Upgrade your engine's timing system. Get the Twin Power Twin Cam Primary Cam Chain from GGCRACING today.

Vehicle Fitment

Years Make Model Trim
1999-2006 Harley-Davidson FLHR Road King Base
1999-2006 Harley-Davidson FLHRCI Road King Classic Base
2000-2006 Harley-Davidson FLHRI Road King Base
2004-2006 Harley-Davidson FLHRS Road King Custom Base
1999-2006 Harley-Davidson FLHT Electra Glide Standard Base
1999-2005 Harley-Davidson FLHTC Electra Glide Classic Base
1999-2006 Harley-Davidson FLHTCI Electra Glide Classic Base
1999-2006 Harley-Davidson FLHTCUI Electra Glide Ultra Classic Base
2006 Harley-Davidson FLHX Street Glide Base
2006 Harley-Davidson FLST Heritage Softail Base
1999-2006 Harley-Davidson FLSTC Heritage Softail Classic Base
2001-2006 Harley-Davidson FLSTCI Heritage Softail Classic Base
2001-2006 Harley-Davidson FLSTFI Fat Boy Base
2005-2006 Harley-Davidson FLSTN Softail Deluxe Base
1999-2006 Harley-Davidson FLSTS Heritage Springer Base
2005-2006 Harley-Davidson FLSTSC Softail Springer Classic Base
1999-2006 Harley-Davidson FLTR Road Glide Base
1999-2006 Harley-Davidson FLTRI Road Glide Base
1999-2006 Harley-Davidson FXD Dyna Super Glide Base
2006 Harley-Davidson FXDBI Street Bob Base
2005 Harley-Davidson FXDC Super Glide Custom Base
2006 Harley-Davidson FXDI Dyna Super Glide Base
1999-2005 Harley-Davidson FXDL Dyna Low Rider Base
2004-2006 Harley-Davidson FXDLI Dyna Low Rider Base
1999-2000 Harley-Davidson FXDS-Conv Dyna Convertible Base
2001 Harley-Davidson FXDWG2 Base
2004-2006 Harley-Davidson FXDWGI Dyna Wide Glide Base
1999-2005 Harley-Davidson FXDX Dyna Super Glide Sport Base
2001-2003 Harley-Davidson FXDXT Dyna Super Glide T-Sport Base
2000-2006 Harley-Davidson FXSTD Softail Deuce Base
2001-2006 Harley-Davidson FXSTDI Softail Deuce Base
2003-2004 Harley-Davidson FXSTDSE Screamin Eagle Softail Deuce Base
2001-2006 Harley-Davidson FXSTI Softail Standard Base
2001-2006 Harley-Davidson FXSTSI Springer Softail Base

Product Details

Product Description
Part Numbers
Sizing & Fit

About TwinPower

TwinPower engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full TwinPower lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Enhance Your Twin Cam Engine's Timing with Twin Power Cam Chain

Ensure precise valve timing and smooth engine operation with the Twin Power Twin Cam Primary Cam Chain. Specifically designed for 1999-2006 Harley-Davidson Twin Cam models (excluding 2006 Dyna models), this high-quality chain replaces Harley-Davidson part number 25610-99, offering superior performance and durability.

Product Features:

  • Precision Ground Side Plates: Engineered for exceptionally smooth operation, reducing friction and wear within the cam drive system.
  • O.E. Equivalent or Superior: Manufactured to meet or exceed the specifications of the original equipment chain, ensuring reliable performance.
  • Designed for Twin Cam: Perfectly fits 1999-2006 Harley-Davidson Twin Cam engines, excluding 2006 Dyna models.
  • Replaces H-D 25610-99: A direct and dependable replacement for the stock primary cam chain.
  • Made in Japan: Manufactured with Japanese precision and quality control, guaranteeing a high-quality product.
  • Durable Construction: Built to withstand the rigors of high-performance engines, ensuring long-lasting reliability.

The cam chain is a critical component in your engine's valvetrain, responsible for synchronizing the camshaft and crankshaft. A worn or stretched cam chain can lead to incorrect valve timing, resulting in reduced power, poor performance, and potential engine damage. This Twin Power cam chain offers a reliable solution for maintenance or performance upgrades.

Invest in the quality and precision of Twin Power components to keep your Harley-Davidson Twin Cam running at its peak. Experience smoother operation and peace of mind with this premium cam chain.

Upgrade your engine's timing system. Get the Twin Power Twin Cam Primary Cam Chain from GGCRACING today.

Vehicle Fitment

Years Make Model Trim
1999-2006 Harley-Davidson FLHR Road King Base
1999-2006 Harley-Davidson FLHRCI Road King Classic Base
2000-2006 Harley-Davidson FLHRI Road King Base
2004-2006 Harley-Davidson FLHRS Road King Custom Base
1999-2006 Harley-Davidson FLHT Electra Glide Standard Base
1999-2005 Harley-Davidson FLHTC Electra Glide Classic Base
1999-2006 Harley-Davidson FLHTCI Electra Glide Classic Base
1999-2006 Harley-Davidson FLHTCUI Electra Glide Ultra Classic Base
2006 Harley-Davidson FLHX Street Glide Base
2006 Harley-Davidson FLST Heritage Softail Base
1999-2006 Harley-Davidson FLSTC Heritage Softail Classic Base
2001-2006 Harley-Davidson FLSTCI Heritage Softail Classic Base
2001-2006 Harley-Davidson FLSTFI Fat Boy Base
2005-2006 Harley-Davidson FLSTN Softail Deluxe Base
1999-2006 Harley-Davidson FLSTS Heritage Springer Base
2005-2006 Harley-Davidson FLSTSC Softail Springer Classic Base
1999-2006 Harley-Davidson FLTR Road Glide Base
1999-2006 Harley-Davidson FLTRI Road Glide Base
1999-2006 Harley-Davidson FXD Dyna Super Glide Base
2006 Harley-Davidson FXDBI Street Bob Base
2005 Harley-Davidson FXDC Super Glide Custom Base
2006 Harley-Davidson FXDI Dyna Super Glide Base
1999-2005 Harley-Davidson FXDL Dyna Low Rider Base
2004-2006 Harley-Davidson FXDLI Dyna Low Rider Base
1999-2000 Harley-Davidson FXDS-Conv Dyna Convertible Base
2001 Harley-Davidson FXDWG2 Base
2004-2006 Harley-Davidson FXDWGI Dyna Wide Glide Base
1999-2005 Harley-Davidson FXDX Dyna Super Glide Sport Base
2001-2003 Harley-Davidson FXDXT Dyna Super Glide T-Sport Base
2000-2006 Harley-Davidson FXSTD Softail Deuce Base
2001-2006 Harley-Davidson FXSTDI Softail Deuce Base
2003-2004 Harley-Davidson FXSTDSE Screamin Eagle Softail Deuce Base
2001-2006 Harley-Davidson FXSTI Softail Standard Base
2001-2006 Harley-Davidson FXSTSI Springer Softail Base

Product Details

Product Description

About TwinPower

TwinPower engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full TwinPower lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Enhance Your Twin Cam Engine's Timing with Twin Power Cam Chain

Ensure precise valve timing and smooth engine operation with the Twin Power Twin Cam Primary Cam Chain. Specifically designed for 1999-2006 Harley-Davidson Twin Cam models (excluding 2006 Dyna models), this high-quality chain replaces Harley-Davidson part number 25610-99, offering superior performance and durability.

Product Features:

  • Precision Ground Side Plates: Engineered for exceptionally smooth operation, reducing friction and wear within the cam drive system.
  • O.E. Equivalent or Superior: Manufactured to meet or exceed the specifications of the original equipment chain, ensuring reliable performance.
  • Designed for Twin Cam: Perfectly fits 1999-2006 Harley-Davidson Twin Cam engines, excluding 2006 Dyna models.
  • Replaces H-D 25610-99: A direct and dependable replacement for the stock primary cam chain.
  • Made in Japan: Manufactured with Japanese precision and quality control, guaranteeing a high-quality product.
  • Durable Construction: Built to withstand the rigors of high-performance engines, ensuring long-lasting reliability.

The cam chain is a critical component in your engine's valvetrain, responsible for synchronizing the camshaft and crankshaft. A worn or stretched cam chain can lead to incorrect valve timing, resulting in reduced power, poor performance, and potential engine damage. This Twin Power cam chain offers a reliable solution for maintenance or performance upgrades.

Invest in the quality and precision of Twin Power components to keep your Harley-Davidson Twin Cam running at its peak. Experience smoother operation and peace of mind with this premium cam chain.

Upgrade your engine's timing system. Get the Twin Power Twin Cam Primary Cam Chain from GGCRACING today.

Vehicle Fitment

Years Make Model Trim
1999-2006 Harley-Davidson FLHR Road King Base
1999-2006 Harley-Davidson FLHRCI Road King Classic Base
2000-2006 Harley-Davidson FLHRI Road King Base
2004-2006 Harley-Davidson FLHRS Road King Custom Base
1999-2006 Harley-Davidson FLHT Electra Glide Standard Base
1999-2005 Harley-Davidson FLHTC Electra Glide Classic Base
1999-2006 Harley-Davidson FLHTCI Electra Glide Classic Base
1999-2006 Harley-Davidson FLHTCUI Electra Glide Ultra Classic Base
2006 Harley-Davidson FLHX Street Glide Base
2006 Harley-Davidson FLST Heritage Softail Base
1999-2006 Harley-Davidson FLSTC Heritage Softail Classic Base
2001-2006 Harley-Davidson FLSTCI Heritage Softail Classic Base
2001-2006 Harley-Davidson FLSTFI Fat Boy Base
2005-2006 Harley-Davidson FLSTN Softail Deluxe Base
1999-2006 Harley-Davidson FLSTS Heritage Springer Base
2005-2006 Harley-Davidson FLSTSC Softail Springer Classic Base
1999-2006 Harley-Davidson FLTR Road Glide Base
1999-2006 Harley-Davidson FLTRI Road Glide Base
1999-2006 Harley-Davidson FXD Dyna Super Glide Base
2006 Harley-Davidson FXDBI Street Bob Base
2005 Harley-Davidson FXDC Super Glide Custom Base
2006 Harley-Davidson FXDI Dyna Super Glide Base
1999-2005 Harley-Davidson FXDL Dyna Low Rider Base
2004-2006 Harley-Davidson FXDLI Dyna Low Rider Base
1999-2000 Harley-Davidson FXDS-Conv Dyna Convertible Base
2001 Harley-Davidson FXDWG2 Base
2004-2006 Harley-Davidson FXDWGI Dyna Wide Glide Base
1999-2005 Harley-Davidson FXDX Dyna Super Glide Sport Base
2001-2003 Harley-Davidson FXDXT Dyna Super Glide T-Sport Base
2000-2006 Harley-Davidson FXSTD Softail Deuce Base
2001-2006 Harley-Davidson FXSTDI Softail Deuce Base
2003-2004 Harley-Davidson FXSTDSE Screamin Eagle Softail Deuce Base
2001-2006 Harley-Davidson FXSTI Softail Standard Base
2001-2006 Harley-Davidson FXSTSI Springer Softail Base

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