KTM 790 Duke vs Triumph Street Triple S: Spec Comparison

Published On Sep 18, 2019 By for KTM 790 Duke at Zigwheels.com

Mental vs finesse. Twin vs triple. Austria vs Britain. Here’s how the two stack up on paper

[Update: KTM 790 Duke Launched In India At Rs 8.64 lakh]

KTM 790 Duke Vs Triumph Street Triple S: Spec Comparison

With a nickname like the Scalpel, the KTM 790 Duke promises to be one of the hottest bikes to arrive on our shores this year. Admittedly, it will be a limited run model and will cost a bit more than what we earlier thought of. However, there is no denying that the 790 Duke is going to be a fun bike to ride. In this hotly contested middleweight segment, the Triumph Street Triple is the bike to beat. Given that the pricing of the 790 Duke is expected to be near the S variant, here’s how the two bikes stack up on paper.

Engine & Electronics:


KTM 790 Duke

Triumph Street Triple S


799cc, liquid-cooled, parallel-twin

765cc, liquid-cooled, inline-triple 

Max. Power Output

105PS @ 9,000rpm

113PS @ 11,250rpm

Max. Torque

87Nm @ 8,000rpm

73Nm @ 10,421rpm

Transmission Type



Slipper clutch






Electronic aids

Ride-by-wire, 4 rider modes, 4-stage traction control (fully disengageable), cornering ABS, Supermoto mode and wheelie control

Ride-by-wire, 2 rider modes, switchable traction control, 

The 790 Duke is less powerful and packs one cylinder less, but KTM has tuned the new 799cc LC8 motor to be as punchy as a big-bore single. No wonder it makes more torque at lower revs than the 765cc triple. Where the 790 triumphs over the Street Triple S is in the electronics package. Plus with goodies like wheelie control, Supermoto mode, cornering ABS and a bi-directional quickshifter are not even available on the top-of-the-line Street Triple RS.



KTM 790 Duke

Triumph Street Triple S


Chromium-Molybdenum-Steel frame using the engine

Aluminium twin spar frame

Front Suspension

43 mm WP USD fork separate function forks (SFF), 140mm travel

Showa 41 mm upside down separate function forks (SFF), 110mm travel

Rear Suspension

WP monoshock with preload adjustability, 150mm travel

Showa piggyback reservoir monoshock with preload adjustability, 124mm travel


Front: 2 x 300mm discs with J Juan four-piston radial calipers

Rear: 240mm single disc with single-piston caliper

Front: 2 x 310mm discs with Nissin two-piston sliding calipers

Rear: 220mm disc with Brembo single-piston caliper


Front: 120/70 - ZR17

Rear: 180/55 - ZR17

Maxxis Supermaxx ST tyres

Front: 120/70 - ZR17

Rear: 180/55 - ZR17

Pirelli Diablo Rosso II tyres

Both middleweight nakeds are on par when it comes to the components found. Where the 790 Duke might have a small edge is with its J Juan radial calipers while the Street Triple S has to make do with  smaller Nissin twin-piston calipers. However, we believe the Triumph's Pirelli Diablo Rosso II tyres will be grippier than the KTM's Maxxis Supermaxx ST tyres as the latter compound is more of a touring-biased tyre.



KTM 790 Duke

Triumph Street Triple S







Seat height



Ground clearance



Dry weight



Fuel tank capacity

14 litres

17.4 litres

One would think that the KTM is the more compact and lighter of the two motorcycles. However, the specs reveal otherwise. The Street Triple S is lighter by 3kg, has a 65mm smaller wheelbase and has a more accessible seat height. And the extra 3.4 litres of fuel aboard the Street Triple S means you can stretch your riding stint for a longer duration.



(ex-showroom India)

KTM 790 Duke

Triumph Street Triple S

Rs 8.5 lakh (expected)

Rs 9.19 lakh

We had earlier expected KTM India to be bang on with the pricing like it has done in the past with the 390 Duke. But rumours suggest that the 790 Duke will be a pricey affair as it is likely to arrive via the CBU route. Hence, we believe it could be priced around the Rs 8.5 lakh mark. While that may seem like a lot for a KTM, it will still be nearly half a lakh cheaper than the Triumph offering. 

Read More on : KTM 790 Duke , Triumph Street Triple

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