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Harley-Davidson · 2026 cruisers
Harley-Davidson technical data and calculators
Eight 2026 Softail cruisers, one engine family: the Milwaukee-Eight 117. Gear ratios, belt drive, tyre sizes, geometry and weights from published sources, and Lab calculators that open with each bike’s numbers, for mechanics and owners who want to work it out properly.
- 8 models, every figure sourced
- Calculators prefilled per model
- Imperial first, metric too
MotoWild Lab
Calculators for big V-twins
Gear charts, cruising rpm, belt pulley changes, big bore kits, compression and cam timing, each with the formula worked through. Open them from a model page below and they start with that bike’s published figures.
Choose your model
2026 Harley-Davidson cruisers
Specs with sources, gear ratios and road speed in every gear, tyre sizes, model history and calculators for each.
New for 2026 · M-8 117 ClassicHarley-Davidson DeadwoodA new 2026 Softail with the Milwaukee-Eight 117 Classic, 16-inch wire-spoke wheels at both ends and a 5-gallon tank.2026Specs and data →SUPER GLIDE
Limited 2026 · FXD · M-8 117 ClassicHarley-Davidson Super GlideThe FXD name returns for 2026 as a limited run of 2,500 numbered bikes, with the Milwaukee-Eight 117 Classic and a 19/16-inch wheel set.2026Specs and data →BREAKOUT
Power cruiser · M-8 117 CustomHarley-Davidson BreakoutLong, low and raked out: a 21-inch front, a 240 mm rear tyre, 34 degrees of rake and the Milwaukee-Eight 117 Custom.2026Specs and data →FAT BOY
Icon · M-8 117 CustomHarley-Davidson Fat BoyWide 160 mm front and 240 mm rear tyres on 18-inch wheels, the shortest trail in the range, and the Milwaukee-Eight 117 Custom.2026Specs and data →HERITAGE CLASSIC
Touring cruiser · M-8 117 ClassicHarley-Davidson Heritage ClassicThe Softail with a windshield and lockable saddlebags as standard: Milwaukee-Eight 117 Classic, 16-inch wheels and a 5-gallon tank.2026Specs and data →LOW RIDER S
Performance cruiser · M-8 117 High OutputHarley-Davidson Low Rider SThe most powerful engine in the range, the Milwaukee-Eight 117 High Output, with 28 degrees of rake, a 19-inch front and the shortest wheelbase.2026Specs and data →STREET BOB
Entry Softail · M-8 117 ClassicHarley-Davidson Street BobThe lightest and least expensive of the eight: mini-ape bars, a 19-inch front, a 3.5-gallon tank and the Milwaukee-Eight 117 Classic.2026Specs and data →LOW RIDER ST
Sport tourer cruiser · M-8 117 High OutputHarley-Davidson Low Rider STThe Low Rider S chassis with a frame-mounted fairing and saddlebags, the Milwaukee-Eight 117 High Output, and the highest price of the eight.2026Specs and data →Side by side
All eight in one table
| Model | 117 engine | Power | Torque | Weight | Seat (laden) | Tank | Rake / trail | Tyres | rpm at 70 mph | From |
|---|---|---|---|---|---|---|---|---|---|---|
| Deadwood | Classic | 98 hp (73 kW) | 120 lb-ft (163 N·m) | 686 lb (311 kg) | 25.5 in (648 mm) | 5 US gal (18.9 L) | 30° / 5.8 in (147 mm) | 130/90B16 / 150/80B16 | 2,580 | $17,999 |
| Super Glide | Classic | 98 hp (73 kW) | 120 lb-ft (163 N·m) | 656 lb (298 kg) | 25.2 in (640 mm) | Not confirmed | 30° / 6.2 in (157 mm) | 100/90B19 / 150/80B16 | 2,580 | $15,999 |
| Breakout | Custom | 103 hp (77 kW) | 126 lb-ft (171 N·m) | 681 lb (309 kg) | 25.6 in (650 mm) | 5 US gal (18.9 L) | 34° / 5.7 in (145 mm) | 130/60B21 / 240/40R18 | 2,570 | $22,999 |
| Fat Boy | Custom | 103 hp (77 kW) | 126 lb-ft (171 N·m) | 694 lb (315 kg) | 25.9 in (658 mm) | 5 US gal (18.9 L) | 30° / 4.1 in (104 mm) | 160/60R18 / 240/40R18 | 2,570 | $22,599 |
| Heritage Classic | Classic | 98 hp (73 kW) | 120 lb-ft (163 N·m) | 719 lb (326 kg) | 26.3 in (668 mm) | 5 US gal (18.9 L) | 30° / 5.5 in (140 mm) | 130/90B16 / 150/80B16 | 2,580 | $19,999 |
| Low Rider S | High Output | 114 hp (85 kW) | 128 lb-ft (174 N·m) | 670 lb (304 kg) | 27.0 in (686 mm) | 5 US gal (18.9 L) | 28° / 5.7 in (145 mm) | 110/90B19 / 180/70B16 | 2,530 | $18,999–$19,999 |
| Street Bob | Classic | 98 hp (73 kW) | 120 lb-ft (163 N·m) | 646 lb (293 kg) | 25.8 in (655 mm) | 3.5 US gal (13.2 L) | 30° / 6.2 in (157 mm) | 100/90B19 / 150/80B16 | 2,580 | $14,999 |
| Low Rider ST | High Output | 114 hp (85 kW) | 128 lb-ft (174 N·m) | 712 lb (323 kg) | 27.0 in (686 mm) | 5 US gal (18.9 L) | 28° / 5.7 in (145 mm) | 110/90B19 / 180/70B16 | 2,530 | $23,999 |
Claimed figures (US test method) and starting US prices, with sources on each model page. rpm at 70 mph in 6th is worked out from the published overall ratio of 2.79 and the rear tyre size, before tyre squash, so the real figure is a little higher. Check it in the Lab.
Engine
One Milwaukee-Eight 117, three states of tune
Every bike here has a 1,923 cc (117 cu in) 45-degree V-twin with a 103.5 mm (4.075 in) bore, a 114.3 mm (4.5 in) stroke and a 10.3:1 compression ratio. Harley-Davidson sells it in three versions with different claimed outputs:
| Version | Models | Power (claimed) | Torque (claimed) | BMEP at peak torque | Piston speed at peak power |
|---|---|---|---|---|---|
| 117 Classic | Deadwood, Super Glide, Heritage Classic, Street Bob | 98 hp at 4,600 rpm | 120 lb-ft at 2,500 rpm | 10.6 bar (154 psi) | 17.5 m/s (3,450 ft/min) |
| 117 Custom | Breakout, Fat Boy | 103 hp at 4,800 rpm | 126 lb-ft at 3,000 rpm | 11.2 bar (162 psi) | 18.3 m/s (3,600 ft/min) |
| 117 High Output | Low Rider S, Low Rider ST | 114 hp at 5,000 rpm | 128 lb-ft at 4,000 rpm | 11.3 bar (165 psi) | 19.1 m/s (3,750 ft/min) |
The last two columns are worked out in the Lab from the claimed figures. Brake mean effective pressure (BMEP) is torque per unit of displacement, so it compares how hard each version works its cylinders regardless of size: the High Output makes only about 7 percent more peak torque than the Classic, but makes it 1,500 rpm higher, which is where its extra power comes from. Mean piston speed shows how hard the long 4.5-inch stroke is being revved. BMEP calculator · Piston speed calculator
Harley-Davidson’s US figures use a different test method from its European and Asia-Pacific figures, so the same engine is listed with different numbers in different markets (for example 91 hp and 156 N·m for the 117 Classic on the Asia-Pacific site). Compare like with like.
Gearing
Same drivetrain on every model
All eight have a six-speed gearbox, a 34/46 chain primary drive (1.353:1) and a 32/66 toothed belt final drive (2.063:1). Harley-Davidson publishes overall ratios of 9.311, 6.454, 4.793, 3.882, 3.307 and 2.79 for 1st to 6th, which means 6th gear is direct (1:1) and the overall top-gear ratio is simply primary times belt.
What differs between models is the rear tyre, and with it the road speed. A 180/70B16 (Low Rider S and ST) is about 2 percent taller than a 150/80B16 (Street Bob, Super Glide, Heritage Classic, Deadwood), so the Low Riders turn about 50 rpm less at 70 mph. Each model page has the full gear chart; the belt pulley calculator shows what a different pulley does to gearing and axle position.
Harley-Davidson guides and comparisons
Harley-Davidson · GuidesMilwaukee-Eight 117 Big Bore and Stroker Math: Displacement and CompressionWhat a bigger bore or longer stroke does to a 117: cubic inches, compression with the same clearance volume, and why kits…Updated Oct 27, 2026
Harley-Davidson · GuidesHarley-Davidson Belt Drive: Pulley Changes, Belt Length and Axle PositionHow a toothed final drive belt is sized, how far the axle moves when you change a pulley, and what to check…Updated Oct 27, 2026
Harley-Davidson · GuidesHarley-Davidson Softail Gear Ratios and Highway rpm (2026), Worked OutOverall ratios to gearbox ratios, road speed in every gear, rpm at 60, 70 and 80 mph for each rear tyre, and…Updated Oct 27, 2026
Harley-Davidson · Compare2026 Harley-Davidson Super Glide vs Street Bob: The FXD ReturnsA limited run of 2,500 Softail-based Super Glides. How it compares with the Street Bob, and why Dyna-era figures do not apply.Updated Oct 27, 2026
Harley-Davidson · CompareHarley-Davidson Heritage Classic vs Deadwood (2026): Two 16-Inch ClassicsSame 117 Classic and tyre sizes. Equipment, weight, trail and price set them apart.Updated Oct 27, 2026
Harley-Davidson · CompareHarley-Davidson Low Rider S vs Low Rider ST (2026): What the Fairing AddsSame engine, frame and wheels. The ST adds a frame-mounted fairing, saddlebags, 42 lb and about $5,000. What that means in numbers.Updated Oct 26, 2026
Harley-Davidson · CompareHarley-Davidson Street Bob vs Low Rider S (2026): Classic vs High OutputThe entry Softail against the performance cruiser: engine, weight, tank, geometry and highway rpm compared.Updated Oct 26, 2026
Harley-Davidson · CompareHarley-Davidson Fat Boy vs Breakout (2026): Same Engine, Different Front EndsBoth have the 117 Custom and a 240 rear. Rake, trail, front wheel size and wheelbase are where they differ, and the…Updated Oct 26, 2026
Harley-Davidson · Compare2026 Harley-Davidson Cruisers Compared: All Eight Softails by the NumbersWeight, power, seat, tank, geometry, rpm at 70 mph and price for every 2026 Softail cruiser, with power-to-weight and chassis families.Updated Oct 26, 2026Harley-Davidson FAQ
Do all 2026 Harley-Davidson cruisers have the same engine?
Yes, all eight use the Milwaukee-Eight 117: 1,923 cc, 103.5 × 114.3 mm, 10.3:1 compression. It comes in three versions: the 117 Classic (98 hp, 120 lb-ft), the 117 Custom (103 hp, 126 lb-ft) and the 117 High Output (114 hp, 128 lb-ft), as rated by Harley-Davidson in the US.
What rpm does a Softail turn at 70 mph?
About 2,600 rpm in 6th on the 150/80B16 rear tyre, worked out from the 2.79 overall top-gear ratio and the tyre size. Under load the tyre rolls slightly shorter, so expect a little more on the tachometer. The cruising rpm calculator does it for any speed, tyre and pulley.
What is the final drive ratio on a 2026 Softail?
A 32-tooth front and 66-tooth rear belt pulley, 2.063:1, behind a 34/46 chain primary drive. Multiplied together with the direct 6th gear they give the published overall ratio of 2.79.
Why do Harley-Davidson specs differ between the US and Europe?
Power and torque are measured to different standards in different markets, and seat heights are quoted laden in the US and often unladen elsewhere. MotoWild shows the US figures and says which basis each figure uses.
Is MotoWild connected to Harley-Davidson?
No. MotoWild is independent and does not sell anything or earn commission. The data comes from Harley-Davidson’s published specifications and from dealers and reviewers, linked on each page.
MotoWild is independent and not affiliated with Harley-Davidson. Harley-Davidson, Milwaukee-Eight, Softail and the model names are trademarks of their owner. Photos: Harley-Davidson. Specifications are as published by Harley-Davidson and reported by dealers and reviewers, with links on each model page; check your owner’s or service manual before working on your bike.