SuperSport Technology Overview - Ducati Supersport 939 Forum
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post #1 of 5 (permalink) Old 04-18-2017, 12:09 PM Thread Starter
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SuperSport Technology Overview

Chassis and Brakes

Refined is the best way to describe the 939, as is with most Ducati's, owners in this community can attest that. But this one is special due to overall smoothness achieved by further tuning the L-Twin, frame, suspension, and more listed below. Even with all these changes its still a minimalist package.

The engine is a structural element of the frame. A choice that pays off both in terms of aesthetics and functionality. The structure, compact and lightweight, highlights the dynamic qualities of the SuperSport and helps maintain its dry weight of just 184 kg, or kerb weight of 210 kg. The wheelbase and head angle and trail make the bike agile and quick, but also stable, when leaning in.
A real sportsbike, the SuperSport is equipped with a single-sided swingarm in die-cast aluminium that gives it rigidity and a reduced weight. The fully adjustable suspension differs for the SuperSport and SuperSport S models. The first has a 43 mm-diameter Marzocchi fork at the front and a Sachs single shock at the rear. The SuperSport S is equipped with fully-adjustable refined hlins suspension, with a 48 mm fork at the front and a single shock with integrated gas tank.
Wheels and Tires
The SuperSport is equipped with the aggressive Y design, three-spoke alloy wheels. The 3.50x17 wheel at the front and the 6.00x17 at the rear mount 120/70 ZR 17 and 180/55 ZR 17 Pirelli Diablo Rosso™ III. This latest-generation tyre is the direct successor to the DIABLO ROSSO™ II, from which it inherits its compound quality, excellent grip in all conditions and wear-resistance. DIABLO ROSSO™ III presents new profiles, latest-generation materials and an innovative structure that increases its handling and grip, raising the performance offered by a road tyre to a higher level. The characteristic “lightning bolt” tread design, an evolution of that of the famous DIABLO™ SUPERCORSA, ensures the tyre is compact, with a better full/empty ratio and greater efficiency in terms of water drainage, qualities that are particularly useful during road use.
Lean Angle
During sports use, the SuperSport brings dynamism and emotions to the fore in true Ducati style, thanks to a generous lean angle of 48 that ensures limitless fun. A result achieved also thanks to the agile chassis geometry and the choice of the 180/55 size for the rear tyre that combines handling and traction.
The front brakes of the SuperSport mount Brembo M4-32 monobloc callipers that act on two discs, 320 mm in diameter, activated by a Brembo PR18/19 radial pump with separate tank and adjustable lever, typical of sports models. At the rear are 245 mm discs, activated by dual piston Brembo calliper. The braking system is managed by the Bosch 9MP ABS system with three maps that can be deactivated when necessary.
- Ducati USA

Electronic Equipment

Although minimalist, Ducati included a reasonable level of electronic equipment. Not anything impressive but serves the part of keeping this 939 relevant, up to date and suitable for a range of riders vis--vis riding modes. Topping this off is the impressive LCD display which so far has been getting positive feedback, hopefully it stays that way.

Bosch ABS System
The Bosch ABS system is a 9MP with integrated pressure sensor that can be deactivated or adjusted according to 3 increasing levels of intervention, which can be associated with the Riding Modes. Level 1, recommended for very grippy surfaces, offers track level performance with intervention only at the front. With the next levels, the ABS acts on both wheels, supporting riding on surfaces with less grip with the anti-wheelie function at the rear.
Ducati Traction Control (DTC)
Ducati Traction Control is an advanced system that identifies any rear wheel sliding and intervenes to control it, based on eight different profiles that ensure different tolerance values, to be selected according to the rider’s riding ability. Even if set up for the three different Riding Modes, the level of DTC intervention can be personalised or completely deactivated.
Ducati Quick Shift (DQS) up/down
The Ducati Quick Shift (DQS) up/down is an electronic system derived from racing that allows for gear changing and shifting without using the clutch and without closing the throttle when up-shifting. Helping the rider to save precious seconds in acceleration and avoid distractions during corner entry, the system is particularly useful in city traffic, while also ensuring greater enjoyment during sports use.
LCD Instrumentation
The LCD display transforms the SuperSport’s dashboard into an advanced control panel via which the rider can easily access information regarding the engine, consumption and settings such as ABS Bosch and DTC. The display also allows for configuration of the Riding Modes and visualisation of Ducati Multimedia System information, which, thanks to Bluetooth technology, connects the bike to latest-generation smartphones, allowing the rider to control certain functions, manage the music player or receive notifications about incoming calls or messages received.
- Ducati USA


Most impressive is how smooth power and torque is all throughout the power band even when switching between the three riding modes. For a lot of riders that smoothness means less hammering through gears and more contentment through individual gears. Even with that smoothness, aggressive riders will also like the 939.

937 cc Testastretta 11
The SuperSport is driven by the 937 cm twin Ducati Testastretta 11 that supplies a maximum power of 113 HP at 9250 rpm. For this application, the engine has been especially redesigned with a new crankcase, new heads with different water passages and an alternator cover with a specific design for the mounting of the new gear sensor. The engine and injection control systems are also brand new for this engine type. Euro 4 homologated, it boasts four valves per cylinder, a secondary air system, liquid cooling, a 12.6:1 compression ratio and bore and stroke values of 94 e 67.5 mm respectively. One of the most appreciated features of the Ducati twin are its long maintenance intervals: every 15,000 km or 12 months with a valve clearance check every 30,000 km, values of absolute reference for its sector.
Gearbox and Clutch
The engine is equipped with a six-speed gearbox with a new gear sensor that allows the SuperSport range to benefit from the advanced Ducati Quick Shift (DQS) up/down system, as standard on the SuperSport S and available as an accessory for the SuperSport. The mechanical cable clutch, requiring less exertion on the lever, is an oil bath clutch with anti-wheelie function that allows the bike to remain stable even during the aggressive up-shifting typical of sports riding.
Power and Torque
The Ducati Testastretta 11 twin supplies up to 113 HP at 9250 rpm and develops full, hefty torque throughout its entire operating range, ensuring a prompt response to any command from the throttle, a fundamental characteristic in terms of its road use. At 3000 rpm, more than 80% of the maximum torque is already available, reaching a peak of 9.86 kgm at 6500 rpm.
- Ducati USA


If you want street-friendly ergonomics, look no further than the 939. You get all the looks, power, and overall performance without sacrificing this one vital area. Someone who typically doesn't like Ducati ergonomics will find this to be a refreshing change.

The ergonomic triangle of the SuperSport combines practicality and sports riding enjoyment, allowing the rider to assume a more relaxed riding position while still ensuring maximum control. The seat, 810 mm from the ground, allows the rider’s feet to easily touch the ground, the height of the half-handlebar ensures that wrists are not stressed excessively and the footpeg position won’t strain the knees. The accessories range also includes seats of different heights to personalise the level of riding comfort. In order to be used on all types of road, the SuperSport also benefits from the protection offered by the plexiglass, extendable up to 50 mm, to ensure the right level of protection at all times, even at motorway speeds.
- Ducati USA
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post #2 of 5 (permalink) Old 06-27-2019, 05:04 PM
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DTC - wow! I had a moment tonight.

The past couple of days the weather's been perfect for riding, so went out after work. Last night I put about 70 miles on but wasn't really in the groove so wasn't nailing it...just enjoyed being out on Gina and using 6 or 7 tenths.

Tonight though was different. We were on it. Gina is booked in to get the exhaust valve sorted under warranty on 16 Jul 19, and I'm going to get new tyres fitted while she's in (going for the 190 Diablo Rosso 3 rear). So I've got a couple of weeks to get my moneys worth out of the sides of the current tyres.

Going over a section I know like the back of my hand and pushing on, I headed into a low speed right-left flick, slowing from maybe 70 to 35, I got on the gas a little too early into the left hander. I didn't feel any slide, just the DTC taking control. It was impressive...I was aware of it but it wasn't didn't make the bike sit up, and it was done doing what it had to in a flash and just enough to let me carry on enjoying the ride.

I'm really impressed, and it's confidence inspiring to know how it works. And also to know when I can expect it to kick in. I don't know what level it was set at (it was in Sport so likely the default setting) I'll check tomorrow.
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post #3 of 5 (permalink) Old 06-27-2019, 08:08 PM
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Did you observe it on the Dash too?
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post #4 of 5 (permalink) Old 06-27-2019, 08:43 PM
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Originally Posted by Ed K View Post
Did you observe it on the Dash too?
It happens a lot when you apply throttle over gravel.
The center light will flicker yellow.
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post #5 of 5 (permalink) Old 06-28-2019, 05:25 AM
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Originally Posted by Ed K View Post
Did you observe it on the Dash too?
No, it was about a third of the way into a fairly tight left hander that opens out into a wider arc - my head was turned away from the dash looking to the exit.
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