The 2006 Harley-Davidson Softail Deluxe appears in parts references as both FLSTN and FLSTNI: the catalog identifies the former as carbureted and the latter as fuel-injected. For the FLSTN, Harley-Davidson’s 2006 owner’s manual specifies a 16-inch D402F WW MT90-16 front tire and a 16-inch D402 WW MU85B16 rear tire. Check your motorcycle’s VIN and configuration before ordering parts, and use its owner’s manual for tire and pressure guidance.
FLSTN vs. FLSTNI: which 2006 Softail Deluxe do you have?
Harley-Davidson’s 2006 Softail parts catalog distinguishes the two model codes. It identifies the FLSTN as carbureted and the FLSTNI as fuel-injected; both engine types are listed at 1450cc. Retailer fitment labels sometimes combine them as “FLSTN/I,” but that shorthand does not erase the catalog distinction.
Before selecting a replacement component, confirm the motorcycle’s VIN and actual equipment. Do not rely on a broad FLSTN/I fitment label alone when a part may differ by fuel system or other configuration. The 2006 Harley-Davidson Softail parts catalog provides model-code and applicability information.
What tires fit a 2006 Harley-Davidson Softail Deluxe?
For the FLSTN, the 2006 owner’s manual specifies the following original tire sizes and descriptions:
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| Position | Manual specification |
|---|---|
| Front | 16-inch D402F WW MT90-16 |
| Rear | 16-inch D402 WW MU85B16 |
The manual states that 2006 vehicles use Dunlop Harley-Davidson tires only. Retailer listings may shorten the sizes to MT90B16 front and MU85B16 rear; use the owner’s manual and tire manufacturer’s current fitment guidance to confirm the correct construction and application rather than relying on shorthand size alone. See the 2006 Harley-Davidson owner’s manual.
Recommended cold tire pressures
Harley-Davidson’s 2006 manual lists these cold pressures for the Softail group that includes FLSTN:
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| Riding load | Front | Rear |
|---|---|---|
| Solo | 36 psi | 36 psi |
| Rider and passenger | 36 psi | 40 psi |
These are the manual’s cold-pressure figures. Follow the guidance in the manual supplied for your motorcycle and the tire’s load instructions when setting pressure.
How to identify parts and choose the right manual
The Harley-Davidson parts catalog is useful for diagrams, model codes and part applicability. It is not repair documentation: the catalog explicitly warns, “THIS IS NOT AN ASSEMBLY MANUAL AND SHOULD NOT BE USED AS SUCH.” Use appropriate service documentation for repair procedures rather than treating an exploded-parts diagram as step-by-step instructions.
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- Easy to Use: Our tire plug kits come with everything you need, including a T-handle and spiral probe tool that make piercing into any tire easy. The portable storage case takes up very little space, making it easy to carry with you wherever you go.
- Quick Action: AUTOWN is committed to providing excellent customer service and ensuring the satisfaction of all our customers. We take responsibility to ensure product quality and are always available to help with any questions or concerns.
A third-party seller lists a 2006 FLSTNI service manual, but that listing alone does not establish that the publication is authentic, officially distributed, or complete for every market. Check the publication itself for model-year, market and model-code coverage before relying on it.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Check seat configuration before ordering a passenger pillion
Harley-Davidson’s current regional passenger-pillion listing states fitment for 2005–2017 FLSTN models with the original-equipment solo seat. Because this is a current regional listing and fitment depends on the seat configuration, confirm the applicable region and the motorcycle’s actual seat setup before ordering for a 2006 bike. Harley-Davidson passenger pillion listing.
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