π₯ MT-09 vs Street Triple 765 RS vs KTM 990 Duke: Which Middleweight Streetfighter Wins in 2026?
We compare the Yamaha MT-09, Triumph Street Triple 765 RS, and KTM 990 Duke on power, handling, tech, price, and mod potential to find the best middleweight streetfighter in 2026.
Outgrown your 650 or 700? The step up into the 765 to 990cc class is where naked bikes get properly fast without the cost, weight, and intimidation of a superbike-engined streetfighter.
Three bikes dominate this class: the Yamaha MT-09, the Triumph Street Triple 765 RS, and the KTM 990 Duke. Each takes a different approach. Here is how they compare.
βοΈ Engine & Performance
| Bike | Engine | Power | Torque | Weight |
|---|---|---|---|---|
| Yamaha MT-09 | 889cc triple | ~119 PS | ~93 Nm | ~193 kg (kerb) |
| Triumph Street Triple 765 RS | 765cc triple | ~130 PS | ~80 Nm | ~188 kg (wet) |
| KTM 990 Duke | 947cc parallel twin | ~123 hp | ~103 Nm | ~190 kg (ready to ride) |
Verdict:
The Street Triple makes the most peak power but needs revs. The 990 Duke has the most torque and hits hardest at road speeds. The MT-09 sits in the middle, with a broad, playful spread and the best intake soundtrack.
π£οΈ Handling & Chassis
| Bike | Character | Suspension | Brakes |
|---|---|---|---|
| MT-09 | Playful and light at the front | Fully adjustable KYB | Yamaha four-piston |
| Street Triple RS | Precise and track-ready | Showa BPF + Γhlins STX40 | Brembo Stylema |
| 990 Duke | Agile and stable | WP Apex, clicker adjustable | J.Juan four-piston |
Verdict:
For pure cornering precision, the Street Triple RS is the benchmark. The 990 Duke is a close second and feels more relaxed on rough roads. The MT-09 is the most fun, but its base suspension is the first to run out of answers when you push hard.
π§ Electronics & Tech
All three have IMU-based cornering ABS and traction control, ride modes, and TFT dashes. The details differ:
- MT-09 β Quickshifter and cruise control as standard, plus wheelie and slide control. The best value tech package of the three.
- Street Triple RS β Up/down quickshifter, Track mode, and lap timer as standard.
- 990 Duke β Strong base electronics, but the quickshifter and Track mode need the optional Tech Pack.
Verdict: The MT-09 gives you the most tech for your money.
π° Price & Value (Australia)
| Bike | Ride-Away Price (AUD, approx.) |
|---|---|
| Yamaha MT-09 | ~$17,749 (launch) |
| Triumph Street Triple 765 RS | ~$20,590 β $20,890 (launch) |
| KTM 990 Duke | ~$20,090 (launch), dealers often discount |
Prices change often with dealer offers and factory deals, so treat these as a guide and get current quotes.
Verdict: The MT-09 is the value pick. The Triumph and KTM cost more, but you get higher-spec chassis parts.
π οΈ Mod Potential
| Bike | Aftermarket Support | Popular First Mods |
|---|---|---|
| MT-09 | βββββ | Sprocket, exhaust, tail tidy, shock |
| Street Triple RS | ββββ | Slip-on, tail tidy, road tyres |
| 990 Duke | ββββ | Tech Pack, AkrapoviΔ, sliders |
The MT-09 has the deepest parts catalogue. KTM and Triumph both have strong factory accessory ranges and growing third-party support.
π Final Verdict: Which One Should You Buy?
| You want... | Best Pick |
|---|---|
| Maximum fun and the most tech for the money | Yamaha MT-09 |
| Track days and precise, high-revving handling | Triumph Street Triple 765 RS |
| Midrange punch on tight, twisty roads | KTM 990 Duke |
π§ Iron Revs Recommendation
If this is your first big naked bike, the MT-09 is the easiest to live with and the cheapest to buy and modify. If you are chasing lap times or tight canyon lines, the Street Triple RS is the sharpest tool here. And if you want twin-cylinder torque in the lightest-feeling package, the 990 Duke is the one that will make you grin the most on your favourite back road.
Test ride all three if you can. They are all fantastic, but they feel very different.
π§ Read the full reviews: π₯ Yamaha MT-09 Β· π― Street Triple 765 RS Β· 𧑠KTM 990 Duke
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