The Ducati Monster 937 (officially just called the Ducati Monster, but informally called the 937 to distinguish it from other generations) is the latest in a series of motorcycles that span three decades and that defined and continued to define the naked sport motorcycle class.

Ducati launched the Ducati Monster 937 for the 2021 model year. The 2021+ Ducati Monster replaces the Ducati Monster 821 (which had that explicit name) as well as the air-cooled Ducati Monster 797 (which, looked at another way, you could say is being discontinued). In fact, it also replaces the Ducati Monster 1200, but the door is open for Ducati to introduce another big-bore Monster in the future.

The Ducati Monster 937 uses the 937cc L-twin “Testastretta 11-degree” engine that’s also seen in the Ducati Hypermotard 950 and a few other Ducati motorcycles. In the 2021+ Ducati Monster 937, the engine makes 82 kW (111 hp) at 9250 rpm, with torque peaking at 93 Nm (69 ft-lb) at 6500 rpm.

It shares the same maintenance features as other Testastretta 11-degree engines, like having to check the Desmodromic valve clearances, and having to replace the cam belts every five years.

Ducati has since released other spec levels of the Monster 937, like the Monster SP and the Monster 30th Anniversario. They have some unique parts (see below) but overall, maintenance is the same.

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About the Ducati Monster 937

2023 Ducati Monster SP RHS 3-4 static on track
2023 Ducati Monster 937 SP on track

The 2021+ Ducati Monster “937” is the latest in a 30-year run of naked sport bikes that started in 1993 with the Ducati Monster 900.

It has the same basic concept — a feisty middleweight motor in a naked sportbike chassis. Back in the 1990s, this was a very innovative concept — an aggressive, sporty naked bike. But in the 2020s, this is no longer the case, and the Monster 937 has a lot of company in the class!

For many years, the Monster was known for having first and air-cooled engine in a trellis frame with a dry clutch, and then after adopting liquid cooling and a wet clutch, at least a trellis frame. But the 937 says goodbye to all of that, with the trellis frame being replaced by a much lighter design that Ducati calls the “Front Frame”.

Although all the changes have been gradual, and at its core, the Ducati Monster remains the same thing — a stripped-back (relative to its class) naked sport bike. It’s not a fairing-equipped supersport bike, nor is it a tourer. But you can buy this engine in both those configurations!

For interest, I think it’s cool to compare the original 1993 Ducati Monster 900 to the modern Ducati Monster 937.

Actually, the engine displacement of the original Monster 900 is quite close to that in the Monster 937. But everything else has changed — more power, more

Model1993 Monster 9002021 Monster 937
FrameChrome-molybdenum steel trellisAluminium alloy “Front frame”
EngineAir/oil-cooled Desmodue, belt-driven camsLiquid-cooled Testastretta 11-degree, belt-driven cams
Displacement904 cc937 cc
Valves2 per cylinder, Desmodromic actuation4 per cylinder, Desmodromic actuation
Peak power59 kW / 80 hp @ 7000 rpm82 kW /111 hp @ 9250 rpm
Ride aidsNoneCornering ABS / TC, ride modes, etc.
Service intervals6000 mile / 10000 km oil change and valve clearance check, belt replacement every 2 years9000 mile / 15000 km oil change, 18000 mile / 30000 km valve clearance check, belt replacement every 5 years
Changes between the original Monster and the 2021 Monster

The original Ducati Monster is often called a stripped-back “parts bin special”. I’ve always considered this to be a bit unfair; after all, most popular motorcycles share components with other motorcycles.

The 2021 Ducati Monster with the 937-cc engine replaces the Ducati Monster 821. The 821 had many modern elements already — it already had liquid-cooling, a wet clutch, ABS, and many other features that made it thoroughly a motorcycle of today. But it still had a hint of a trellis frame, an iconic feature not just of Ducati Monsters, but of most Ducati motorcycles in recent years — until the Superleggera broke tradition with its “Monocoque” chassis.

2021 Ducati Monster 937 Front Frame
2021 Ducati Monster 937 Front Frame

Ducati released the “front frame” concept first on the Ducati Panigale V4 superbike. It’s similar to a monocoque (single-piece) frame in that it is built mostly in one piece, and designed to optimise rigidity and weight. Like on the Panigale V4, the frame is made of aluminium.

The impact on weight savings is significant — the frame is 4.5 kg or 10 lb lighter than the trellis frame on the 821 model.

Aside from the frame, Ducati has shed weight in other parts of the Ducati. The 937 cc engine is 2.4kg lighter than the 821cc version. Ducati lightened the rear subframe as well as the wheels (and the wheels on the Anniversario are even lighter).

So Ducati managed to drop the total wet weight of the 2021 Monster from 206 kg / 454 lb to 188 kg / 414 lb — a shocking drop, making the Monster 937 one of the lightest in the middleweight sport bike class. It’s now right up there with the Triumph Street Triple, a bike always known for being the lightest bike in the middleweight sport bike class.

Ducati goes even further in spec and weight-savings with the up-rated versions of the Monster.

For 2023, Ducati released the up-spec Ducati Monster SP, with a number of updated parts, including Öhlins suspension, Brembo Stylema calipers (same as those on the Panigale V4), and Pirelli Diablo Rosso IV tires. Ducati manages to shave off another 2 kg / 4 lb of weight, thanks in large part to the lithium-ion battery (which you can get for the earlier model, too).

And for 2024, Ducati released the limited edition Anniversario in celebration of the 30th anniversary, which comes with Italian flag-based colours (red, green, and white), plus with some extra tasty bits. The headline improvement is the forged wheels, which reduce weight by another 2 kg / 4 lb — and where it counts most, in un-sprung mass.

2024 Ducati Monster 937 Tricolore 30th Anniversario RHS 3-4
2024 Ducati Monster 937 Tricolore 30th Anniversario

Ducati Monster 937 Specifications

For your reference, here are the core specifications for the Ducati Monster 937. These are shared by all the modern variants.

Engine typeLiquid-cooled Testastretta 11-degree L-twin, Desmodromic valve actuation, belt-driven camsSame engine concept shared by Ducati’s middleweights (see alternative section below)
Capacity937 cc
Bore x stroke (mm)94 x 67.5 mm
Compression ratio13.3:1
Fuel requirementPremium95 RON
(Standard European “Super”. Called 91 pump octane in US)
Peak power82 kW / 111 hp @ 9250 rpm
Peak torque93 Nm / 69 lb-ft @ 6500 rpm
Transmission6-speed, chain
Front suspensionVaries by trim — see belowBase model is non-adjustable
Rear suspensionVaries by trim — see below
Front brakesAll share 320mm discs. Caliper spec varies by trim — see below
Wet weightLight! (see below)
Ride aidsAll models have quick shifter, cornering ABS, ride modes, and TC as standard.No models have cruise control
Ducati Monster 937 specs

Model variants of the Ducati Monster 937 (Suspension, Brakes, Weight)

2021 Ducati Monster+ 937 side profile on track
Monster+ with fly screen and passenger seat cover

At launch, there were just two model variants of the Ducati Monster 937 — the Monster and the Monster +. The “plus” model comes with a few extra cosmetic goodies — a flyscreen and a passenger seat cover.

But Ducati launched the Monster SP for 2023, and the Monster Anniversario for 2024. Most specs stay the same, but the SP and Anniversario are respectively steps up.

Here’s how the Ducati Monster SP compares in spec to the Monster base model, and how the 30th Anniversario goes further.

Part2021 Monster / Monster+2023 Monster SP2024 Monster 30th Anniversario
Front suspension43mm USD fork, non-adjustable43mm USD Öhlins fork, TiN treatment, fully adjustable43mm USD Öhlins fork, TiN treatment, fully adjustable
Rear suspensionMonoshock, preload adjustableÖhlins monoshock, fully adjustableÖhlins monoshock, fully adjustable
WheelsLight alloy castLight alloy castForged (1.86 kg / 4.1 lb lighter)
Steering damperNoYesYes – Öhlins
Brake calipersBrembo M4.32Brembo StylemaBrembo Stylema
TiresPirelli Diablo Rosso IIIPirelli Diablo Rosso IVPirelli Diablo Rosso IV
BatteryStandard / Maintenance freeLithium-ion (1.7 kg / 3.8 lb lighter)Lithium-ion (1.7 kg / 3.8 lb lighter)
Curb weight188 kg / 414 lb186 kg / 410 lb184 kg / 406 lb
Ducati Monster 937 vs SP vs Anniversario spec

Using the Ducati Monster’s Screen and Controls

All specs of the Ducati Monster 2021+ model share the same 4.3 TFT display and banner features, so controls for all of them are largely the same.

Ducati Monster 937 ride modes controls
Ducati Monster 937 ride modes controls

To access the ride modes, you use the mode / enter button on the left handlebar, plus the up and down buttons on right above it. You can change the ride mode while moving, but you have to close the throttle (and release the brake) for the mode to engage.

Hold down the mode/enter button, then use the up/down control, then press the mode/enter button again.

The ride modes are customisable in the settings menus.

In the Ducati Monster SP, Ducati renamed Touring and Urban to Road and Wet. But per the manual, the base settings are the same.

Power modeEngine
Touring (base model) / Road (SP)Medium353
Urban (base model) / Wet (SP)Low384
Ducati Monster 937 ride modes

Note that

  • You can’t disable ABS or DTC, but you can disable DWC.
  • ABS level 1 and DTS level 1 aren’t by default associated with any ride mode.
  • The quick shifter is on by default, but you can disable it for a specific ride mode if you want.

The Ducati Monster 937’s up/down quick shifter is designed to work above 2500 rpm. Below that and it behaves unpredictably.

Ducati Monster 937 Service Information

The below information comes from our sister website,

Like most Ducati motorcycles with the Testastretta 11-degree engine, the Ducati Monster 937 has service intervals of 9000 miles or 15000 km, at which point you change the oil and filter, check and clean the air filter, and do a host of checks on the chassis and wearable components for leaks and wear.

See here for a guide to Ducati motorcycle engines, from Desmodue onwards.

The major service interval for the Ducati Monster 937 is 18000 miles or 30000 km, when you do a full Ducati “Desmo” service, including changing the timing belts and checking the valve clearances.

Since the Monster SP’s 937 engine is a 4 valve-per-cylinder design with Desmodromic timing, there are 8 clearances per cylinder and 16 total. Also, needing to change an opener clearance usually means you have to change a closer, and vice versa, per Ducati.

Aside from that, the Ducati Monster 937 needs periodic replacement of the timing belts (every 5 years per the schedule), even if you don’t do mileage.

Finally, the Ducati Monster 937 has clutch fluid as well as brake fluid, so change them at the same time.

Ducati Monster 937 Maintenance Schedule

Below is a clarified version of the maintenance schedule of the maintenance schedule from the manual.

Ducati separates out “customer” items and “dealer” items, but we’ve recombined these into one schedule, then separated out regular “inspection” items.

Daily Inspection Checklist

This is the daily inspection checklist for the 2021+ Ducati Monster 937. Do this before every ride.

Many of these items you’d naturally do by starting to ride, e.g. confirming that the lights, brakes, and clutch work. But you should specifically check the fluid levels periodically.

The manual suggest you do these items every 1000 km / 600 miles, or 6 months — whichever comes earlier.

Ducati Monster 937 regular / pre-ride maintenance
Check the engine oil level
Check brake fluid level
Check tyre pressure and wear
Check the drive chain tension and lubrication
See below for chain tension measurement
Check the brake pads. If necessary, replace, contacting your dealer if necessary.
Regular maintenance for the Ducati Monster 937

Major Items Maintenance Schedule

Below is the service schedule of major items for the Monster 937.

The major “Desmo service” intervals for the Ducati monster SP is every 18000 miles / 30000 km.

Ducati Monster 2021 937 desmo service interval
Ducati Monster 2021 937 Desmo service interval


  • Observe the earlier of time-based or distance-based service intervals. For example, change the oil every 2 years or 9000 miles / 15000 km, whichever arrives earlier.
  • Keep following it in the pattern shown beyond the end of the maintenance schedule.
  • If you ride your motorcycle aggressively or in untoward conditions (e.g. off-road or in mud, rain, or on dirty roads, in stop-start traffic, or in cold weather without giving it time to warm up), you may have to service your bike more often.
Km x 1000115304560
Mi x 10000.69182736Every
Perform annual service checklist (see below)Year
Change engine oil and filter (SAE 15W-50 Jaso MA2, e.g. Shell Advance 45 Ultra 15W-50, or Mobil 1 15W-50)2 years
Check and clean air filter2 years
Change air filter (DNA P-DU10E22-01)
Change timing belts (Part 73740251B)5 years
Check and/or adjust valve clearance
Change spark plugs (NGK MAR9A-J)
Change coolant (ENI Agip Permanent Spezial)4 years
Change front fork fluid (Shell Donax TA)
Change brake and clutch fluid (Castrol DOT 4)2 years
Check front and rear brake disc and pad wear. Change if necessary.Year
Check rear brake disc screw tightening (by removing the rear wheel shaft in case of brake disk retaining screws requiring the use of hexagon wrench)
Check the cush drive damper on rear sprocket and lubricate the rear wheel shaft
Maintenance schedule for the Ducati Monster 937

Annual service checklist for the Monster 937

This is the list of items to check. It’s separated out for ease of reading.


  • Items marked [D] are those that dealers must do unless you have the official gear (“DDS”).
  • Items marked [NBI] aren’t necessary at break-in
Annual service checklist — Ducati Monster 937
[D] Read error memory with DDS 3.0 and check technical updates and recall campaigns on DDS
Check wear of chain, front and rear sprocket, and final drive chain elongation, tension, and lubrication. Record detected elongation value
See below for specs
Visually check the front fork and rear shock absorber seals
Check brake and clutch fluid level
Note: Fluid level drops as brake pads or clutch wears
[NBI] Check the proper tightening of the front and rear brake calliper bolts and the front brake disc bolts
[NBI] Check front and rear wheel nuts and rear sprocket nut tightening
[NBI] Check the tightening of frame fasteners to engine, swinging arm, and rear shock absorber
[NBI] Check wheel hub bearings for play
[NBI] Check steering tube bearings for play
Check the freedom of movement and tightening of the side stand
Check that all gaiters and flexible hoses in view (e.g. fuel, brake and clutch hoses, cooling system, bleeding, drainage, etc.) are not cracked, are properly sealing and positioned
Check free play of rear brake lever and lubricate the levers at the handlebar and pedal controls
Check the free play of the cable clutch lever (where present)
Check tyre pressure and wear (see below for specs)
Check the operation of all electric safety devices (clutch and side stand sensor, front and rear brake switches, engine kill switch, gear/neutral sensor)
Check lighting devices, turn indicators, horn and controls operation
Final test and road test of the motorcycle, testing safety devices (e.g. ABS, DTC, and VHC), electric fans and idling
Visually check the coolant level and sealing of the circuit
Softly clean the motorcycle
Service coupon registration with turning off of Service warning light on instrument panel with DDS 3.0 and filling in of the on-board documentation (Service Booklet)
Dealer maintenance schedule table for the Ducati Monster 937

Measuring chain tension / elongation on the Monster SP

It’s important to regularly check the chain tension and wear level. See the below notes.

To check the tension, push down on the chain and release it. Then measure from the centre of a link pin to the end of the sliding shoe on the swingarm. The distance should be 53-55 mm under static no-load conditions.

If it’s not, the manual recommends you get a Ducati service centre to service your bike.

Ducati Monster 937 chain tension check
Ducati Monster 937 chain tension check

Tyres sizes and pressures for the Ducati Monster

The Ducati Monster 937 base model ships with Diablo Rosso III tires, while the SP and Anniversario ship with Pirelli Diablo Rosso IV tires.

The manual for the Ducati Monster 937 specifies the following tyre sizes and pressures (for all models).

WheelTire sizeTire pressure (cold)
Front120/70 ZR17 M/C 58W2.3 bar / 33 psi (rider only)
2.5 bar / 36 psi (with passenger)
Rear180/55 ZR17 M/C 73W2.5 bar / 36 psi (rider only)
2.9 bar / 42 psi (with passenger)
Ducati Monster 937 tire sizes and pressures

Of course, these are base specs, designed for tire longevity. You should adjust pressure as suits your riding style.

Tightening Torque specs

Below are torque specs that are publicly available. These come from the service manual.

Engine drain bolt (with magnet)2015
Oil mesh filter plug4231
Spark plugs129
Oil filter (cartridge)
Use engine oil on seal
Brake disc fastener3022
Front brake caliper fastener (both sides)4533
Front wheel nut6346
Rear brake caliper to holder screw2518
Rear brake disc fasteners2518
Rear axle nut (right side nut; Loctite on left)145107
Handlebar lower U-bolt to steering head fasteners4533
Steering head on fork fasteners2418
Front sprocket fastener186137
Rear sprocket fasteners4634
Ducati Monster 937 torque specs

These are from the Ducati Monster workshop/service manual, which someone kindly uploaded to Google Drive. (See this thread on

Here are just the torque specs so you can search for more.

Alternatives to the Ducati Monster 937

The Ducati Monster 937 is in a busy crowd of high-end naked sport motorcycles. Here they are.

See more about them in our guide to naked sport motorcycles here.

Other Related Motorcycles

If you’re interested in the Ducati Monster 937, you’re probably also considering other motorcycles with the 937 Testastretta 11-degree motor. There are no less than five motorcycles with the same motor! These have the same engine with much the same spec in terms of power delivery. But the gearing, riding position, and general attitude of the bike give all these machines different personalities.

Reference — Owner’s Manual Screenshots for the Ducati Monster 937

The above information came from the owner’s manual for the Ducati Monster (base model, SP, and Anniversario), as well as from press releases, the service manual, and more.

See below for screenshots of the maintenance schedule from the manual.

You can download a copy from the Ducati website here.

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