Harley Davidson Tire Pressure Chart

We compiled tire pressure specifications directly from Harley-Davidson factory service manuals spanning 1986 through 2023, cross-referenced against current OE tire fitment data and NHTSA tire-related recall records. What we found: the numbers are more model-specific than most quick-reference charts show, and the difference between wrong and right pressure isn’t just MPG – it’s tire life, handling stability, and heat buildup on the highway.

This reference covers every major HD family still on the road: Touring, Softail, Dyna, Sportster, V-Rod, Revolution Max, and Trike. For year ranges not covered by our service manual library (Milwaukee-Eight 2017+, Revolution Max 2021+), we cross-referenced Harley-Davidson’s published owner’s manual specs and NHTSA’s vehicle recall database.

Master Harley-Davidson Tire Pressure Chart – All Models

This is the table most owners need. Each row represents factory cold inflation pressure from the official HD service manual for that model family and year range. “Solo” means rider only; “2-up” means rider + passenger (with or without luggage at the stated weight class).

Touring Family – Detailed Pressure Guide (Road King, Street Glide, Road Glide, Electra Glide)

Touring models are the most consistent of any HD family – the spec has remained unchanged from the 2004 model year through the current Milwaukee-Eight lineup, which tells you it’s locked to the OE Dunlop tire sizing, not just a round number someone picked.

Per the HD Service Manual (2009 Touring Models, Table 1-7, p. 1-13): all Touring models run 36 PSI front / 40 PSI rear, cold, solo or with passenger. The 2011 Touring manual (p. 1-12) carries the identical spec. So does the 2004 FL Police supplement for FLHTP/FLHP models, with the exception that Police configuration specifies a flat 36 PSI front and rear (different tire load rating for solo police use).

Why does the rear stay at 40 PSI even when loaded? The Dunlop D402 OE rear tire on most Touring models carries a load index rating sufficient for combined rider, passenger, and luggage up to GVWR – the 40 PSI figure already accounts for two-up operation. This is unlike many sport bikes where rear pressure increases significantly with a passenger.

For Ultra Limited and Road Glide Ultra owners running full Tour-Pak and loaded saddlebags approaching GVWR: the manual does not call for additional pressure beyond 40 PSI rear. However, several HDForums threads from high-mileage touring riders note that sustained two-up highway riding at maximum load benefits from checking tire sidewall temperature at fuel stops – if it feels unusually hot to the touch, confirm your cold pressure was truly set cold.

Softail Family – Pressure Differences by Designation

Softail is where the chart gets complicated. Unlike Touring’s one-size-fits-all spec, Softails split across three different tire setups depending on frame designation and front tire width.

Per the HD Service Manual (2008 Softail Models, Table 1-2, p. 1-6) and the 2013 Softail Service Manual (p. 1-12): the FLST/FLSTC/FLSTN Heritage and Deluxe models use a wider front tire setup and run a higher front pressure (36 PSI) compared to the narrower-front FXST/FXSTC/FXSTB models (30 PSI front). The rear pressure difference relates to tire section width and aspect ratio – the Breakout’s 240mm rear tire runs at 42 PSI, while the Heritage’s 150mm rear runs at 40 PSI for two-up loads.

Key Softail pressure split at a glance (2013-2017 era):

• Heritage Softail, Slim, Deluxe (FLSTC/FLSTN/FLS): 36 front / 40 rear (with or without passenger)
• Fat Boy, Fat Boy S (FLSTF/B): 36 front / 42 rear
• Breakout (FXSB): 36 front / 42 rear (240mm rear requires higher pressure)
• Softail Standard, narrow front (FXST): 30 front / 42 rear with passenger
• Blackline / FXS: 30 front / 40 rear

For 2018+ Milwaukee-Eight Softails (Fat Boy 114, Heritage Classic 114, Breakout 117, Low Rider S, Sport Glide), Harley standardized to 36 PSI front / 40 PSI rear across the family. If you’re running aftermarket tires outside the OE size, always defer to the tire manufacturer’s inflation table – these specs apply specifically to the factory Dunlop or Michelin fitments.

Dyna Family – Wide Glide vs. Standard Pressure

The Dyna lineup (retired after 2017) has one significant split worth knowing: the Wide Glide (FXDWG) runs a higher front pressure than the rest of the family.

Per the HD Service Manual (2013 Dyna, Table 1-5, p. 1-11): the standard Dyna models (FXDB Street Bob, FXDL Low Rider, FXDC Super Glide Custom) run 30 PSI front / 40 PSI rear for both solo and two-up. The Wide Glide runs 38 PSI front / 40 PSI rear – driven by its distinctive wide-glide fork and different front tire spec. The Fat Bob (FXDF) and Switchback (FLD) run 36 PSI front / 40 PSI rear.

For 2008-2009 Dynas: the split was similar but rear solo pressure was lower. The 2008 Dyna manual (p. 1-8) shows standard models at 30 PSI front / 36 PSI rear solo, increasing to 40 PSI rear when carrying a passenger. The Fat Bob FXDF ran 36 PSI front / 36 PSI rear solo.

If you’re maintaining a Dyna and checking the door placard or sticker (usually on the left fork leg or swingarm), that sticker matches the cold solo spec. The manual supplements it with the passenger-loaded figure.

Sportster Family – 883 vs. 1200 and Year-by-Year History

Sportster tire pressure has the most historical variation of any HD family, going back to the 1986 model year when the 883 Hugger launched with notably lower pressure requirements.

Per the HD Service Manual (1986-2003 Sportster, Table 2 – Tire Inflation Pressure, p. 115): the 883 and 1100 models from 1986-1990 ran just 26 PSI front (179 kPa) – significantly lower than all other HD families. This was specific to the Dunlop tire sizing on early Evo Sportsters. By 1991, Harley revised the spec upward to 30 PSI front as tire technology and OE fitments changed. The 1200 variants consistently ran 30 PSI front through the entire Sportster production run.

The same manual establishes: under 300 lb. combined load (rider + cargo), rear pressure is 36 PSI for 1200s and 30-36 PSI for 883s depending on year. At maximum GVWR load, rear pressure increases to 40 PSI for 1200s and 40 PSI for 1991-2003 883s (32 PSI for 1986-1990 883/1100).

For 2008 Sportsters specifically: the service manual (p. 1-20) confirms 30 PSI front / 36 PSI rear solo, 30 PSI front / 40 PSI rear with passenger – unchanged from the post-1991 baseline.

This chart applies to all XL variants through 2022: Iron 883, Forty-Eight, Roadster, 1200 Custom, Nightster (XL975 – not to be confused with the 2022+ Revolution Max Nightster). The 2022 Sportster S (RH1250S) uses Revolution Max 1250 and carries different specs – see the Revolution Max section above. If you’re in a rush, use the calculator to distinguish between old Sportster and new.

V-Rod and Night Rod – The Liquid-Cooled Outlier

V-Rod models (VRSC family, 2002-2017) used Harley’s liquid-cooled Revolution engine and wider rear tire specs than any other HD model of that era. The pressure table is notably different from air-cooled Big Twins.

Per the HD Service Manual (2008 VRSC Models, Table 1-10 and Table 2-6, p. 1-15 / 2-9): the VRSCAW and VRSCDX Night Rod Special (180mm rear) run 36 PSI front / 38 PSI rear solo, increasing to 36 PSI front / 42 PSI rear for rider and passenger. The VRSCD (standard Night Rod) runs 36 front / 38 rear solo and 36 front / 40 rear two-up.

The V-Rod Muscle (VRSCF), which used a wider 240mm rear tire, carries different pressure – around 38 PSI rear regardless of load due to the tire’s higher load rating at lower inflation. If you’ve swapped to aftermarket tires on a V-Rod (common in the custom scene), the sidewall spec overrides the manual for that fitment.

Revolution Max Platform – Pan America, Sportster S, Nightster

The Revolution Max 1250 and 975 engines (2021+) represent Harley’s modern water-cooled platform. These aren’t covered in our service manual library, but Harley publishes pressure specs in the owner’s manual and on the tire placard on the swingarm.

Factory specs (from Harley-Davidson owner’s manuals, cross-referenced with dealer spec sheets, 2021-2024): the Pan America 1250 runs 36 PSI front / 41 PSI rear – slightly higher rear due to the adventure tire sizing (Michelin Scorcher Adventure OE). The Sportster S is 36 PSI front / 40 PSI rear. The Nightster (975) runs 33 PSI front / 36 PSI rear solo, increasing to 40 PSI rear two-up.

These models are also equipped with optional Tire Pressure Monitoring System (TPMS) from the factory, which displays live pressure on the instrument cluster. Even with TPMS, we recommend verifying cold pressure manually monthly – TPMS sensors are calibrated for hot pressure warnings (typically alerting when pressure drops more than 25% below the hot-running figure), not for the cold setup you want before a long run.

Tri Glide and Freewheeler – Trike Pressure Specifics

Trike rear axles carry a completely different tire setup than two-wheelers, and pressure management matters more: underinflated rear tires on a trike create cornering instability because the two rear tires work together through a differential, not independently like fork offset on a two-wheeler.

The Tri Glide Ultra follows the FL Touring front spec of 36 PSI, and the rear tires (typically mounted on 16″ cast wheels) run 40 PSI. The Freewheeler rear is 36 PSI front and rear. For trikes specifically: if you’re checking pressure after any extended storage, check all three tires individually – rear tires can develop different rates of pressure loss through separate valve stems.

How to Check Harley Tire Pressure Correctly

Getting an accurate reading matters more than most riders realize. A gauge that reads 2 PSI low will consistently put you under spec, and a 10°F temperature swing between a heated garage and cold outdoor air can shift the reading by 1 PSI. Here’s the procedure that matches HD’s official method.

Step 1: Check cold. The tire must have been sitting for at least 3 hours, or ridden less than 1 mile at low speed. Never adjust pressure on a warm tire to reach the spec – you will be underinflated once the tire cools. Per the HD Service Manual notation across all model years: “Tire inflation specifications are cold inflation specifications. Do not check/adjust tire pressure after riding the motorcycle.”

Step 2: Remove the valve cap and check the valve core. A corroded or loose valve core accounts for a significant percentage of slow leaks. Press the Schrader pin briefly – if air escapes continuously after release, the valve core needs replacement ($2 at any auto parts store).

Step 3: Seat the gauge firmly. For motorcycle valve stems (which are often angled at 90 degrees on cast wheels, or mounted at the spoke on wire wheels), use a gauge with a flexible 90-degree chuck or a right-angle adapter. A poorly-seated gauge will bleed air and read low.

Step 4: Read, note, and adjust. If pressure is low, add air in small bursts and re-check. If pressure is high, use the bleed valve on your gauge to release in controlled amounts.

Step 5: Replace valve caps. Not just aesthetic – the cap provides a second seal against moisture and road debris entering the valve core. Metal caps add minimal weight; rubber caps seal equally well and don’t seize onto aluminum valve stems.

For gauge accuracy: check your gauge against a known reference annually. The test shops at most HD dealers use Fluke or Intercomp calibrated gauges – you can ask them to cross-check your gauge against their shop unit. If your gauge consistently reads 2-3 PSI off, replace it.

What Happens When Pressure Is Wrong

Running outside spec isn’t just a MPG issue – it has predictable failure modes on both ends.

Under-inflation (low pressure): The most common problem on Harleys, especially Touring models where riders often run “soft for comfort.” When pressure is 4+ PSI below spec, the tire sidewall flexes more per revolution. This flex generates heat – and heat is tire rubber’s primary enemy. On a summer highway run at sustained 70+ mph, the difference between 36 PSI and 32 PSI rear (Touring spec) translates to meaningfully higher sidewall temperature. Long-term: accelerated center-to-edge tread wear, premature sidewall cracking, and higher risk of heat blister or sudden deflation. Short-term: the bike handles heavier and resists lean input.

Over-inflation (high pressure): Less common but still happens when riders set hot tire pressure to the spec (then the cold tire is over-pressured). Over-inflation causes center-tread-only wear, making tires look like they’ve gone far more miles than they have. The ride harshens noticeably on cast-wheel Touring models, and the contact patch shrinks – which actually reduces braking performance. On Sportsters and Dynas with narrower tires, a 4+ PSI over-inflation makes the bike twitchy at highway speeds.

Uneven front-to-rear: The most underappreciated failure mode. Front tire under-inflation creates understeer on corner entry. Rear over-inflation causes early rear-tire stepping-out under braking. HD’s front/rear split (e.g., 36F/40R on Touring) is deliberately asymmetric – don’t equalize front and rear to a midpoint “because it feels right.”

For related maintenance that affects handling, see our coverage of air suspension upgrades for Harley Touring – tire pressure and suspension setup interact more than most riders realize.

For a full breakdown of how long Harley tires last at various pressure levels and load conditions, see our motorcycle tire lifespan guide.

Load and Temperature Adjustments

The spec chart above covers factory cold inflation. Real-world adjustments come from two variables: ambient temperature change and loading.

Temperature effect: Tire pressure changes approximately 1 PSI per 10°F change in ambient temperature. If you set pressure at 36 PSI in a 50°F garage in the morning, and the temperature rises to 90°F by afternoon, the cold-equivalent pressure has dropped roughly 4 PSI. This doesn’t mean you re-inflate during the ride – remember, you only check cold – but it means your pre-season setup in a heated garage needs to account for actual ambient temperature at your riding destination.

Practical rule: set pressure in conditions similar to where you’ll ride, or accept a 1-2 PSI variance for temperature. HD’s cold spec is measured at approximately 68°F (20°C). If your garage runs 40°F in winter or 85°F in summer, adjust your baseline by ±2 PSI accordingly.

Loading effect: As noted in the master chart, most HD models do not require additional pressure when carrying a passenger (the OE tire is rated for GVWR at the listed cold pressure). However, when running near or at maximum GVWR (check your swingarm decal – every HD has one), pay particular attention to rear pressure. The 1986-2003 Sportster manual explicitly quantifies this: under 300 lb. total load = 36 PSI rear; up to GVWR maximum = 40 PSI rear for 1200 models.

Tour-Pak loaded Touring: A filled Tour-Pak on a Road Glide Ultra or Ultra Limited adds 15-30 lbs. of luggage weight behind the rear axle centerline. This isn’t a pressure adjustment situation (the 40 PSI rear spec on Touring already accounts for full passenger + luggage at GVWR) – it’s more of a suspension preload consideration. If your rear suspension feels bottomed-out under full load, see our air suspension guide for Touring bikes before changing tire pressure.

Recommended Tire Pressure Gauges for Harley-Davidson Owners

Three gauges consistently come up across HDForums, r/Harley, and Cycle World’s tool recommendations for motorcycle tire checking. All three read in the 0-100+ PSI range needed for motorcycle tires (max 40-42 PSI for most Harleys), display in 0.1 PSI increments, and work with both angled and straight valve stems.

JACO ElitePro Digital Tire Pressure Gauge (100 PSI)

Forum-favorite among HD Touring owners for its locking chuck that holds onto angled valve stems without a second hand. Reads in 0.1 PSI increments. Calibrated display with auto-shutoff. Works well with the 90-degree valve stems on cast Touring wheels.

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Accutire MS-4021B Digital Tire Pressure Gauge

Multi-unit display (PSI, bar, kPa, kg/cm²) – useful when cross-referencing with HD service manual kPa specs. Wide 5-150 PSI range. The 4 included valve caps are a practical bonus for a bike with multiple tires. Compact enough to carry in a saddlebag.

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AstroAI Digital Tire Pressure Gauge (0-150 PSI, ANSI B40.7)

Calibrated to ANSI B40.7 standard with ±1 PSI accuracy rating. Backlit LCD display for garage low-light checks. The 0.1 PSI increment display matters when you’re trying to set 36.0 vs. 38.0 on a Wide Glide. Carries the 150 PSI range for any compressor chuck double-check scenarios.

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Frequently Asked Questions

For related electrical maintenance that often goes alongside a tire check, see our guide on Harley voltage regulator symptoms – both are pre-ride checks that overlap in the same inspection window. If you’re setting up a new Street Glide and evaluating bar height at the same time, our best handlebars for Street Glide guide covers that separately.

For the rest of your fluid maintenance, our guide to best 20W50 engine oil for Harley-Davidson covers engine oil selection, and our best Harley 6-speed transmission oil guide covers the separate transmission fluid spec.