By NastyNils·
Motorcycle comparison · Enduro vs Supermoto
KTM 690 Enduro R (MY2009) vs 690 Duke (MY2008)
KTM 690 Enduro R vs 690 Duke: different classes, one choice. Here's how to make it.
You'll feel how steady the KTM 690 Enduro R stays through a fast paved bend, its plush suspension soaking up every ripple. The light KTM 690 Duke flicks into it on a whim.
So which one do you buy?
Buy the 690 Duke if…
Daily commuting & city riding
Clear pick: 690 Duke
For five days a week in traffic, the 690 Duke makes far more sense. Credit easier everyday riding. You'll notice it by the second week.
A confidence-building first motorcycle
Clearly ahead: 690 Duke
The 690 Duke suits a brand-new rider much better. The reason: more comfort and easier controls. Start here and step up later.
The 690 Duke has the edge if…
Sporty riding on twisty roads
Slight edge: 690 Duke
The 690 Duke nudges ahead once the pavement starts to wiggle. Most of that is more feel through the bars. Don't expect a night-and-day difference.
What makes each one tick
690 Enduro R
Rough ground is home turf for the 690 Enduro R, whose WP fork and linkageless shock take big hits and don't knock the wheels off line. Pavement doesn't change its manners. Into a blacktop corner the front end turns in cleanly, and the chassis holds its line. The bars hold dead still as the speedometer climbs.
690 Duke
Lugged low or wound out, the 690 Duke's single pulls like there's a V-twin under the tank. At very low rpm on a light throttle, there's still a snapping sensation through the drivetrain. Built exclusively for the road, and the suspension reflects that. On Twisted Sisters, the short-travel fork stays put through each switchback and tells the bar what the front tire's doing. The twistgrip meters torque out cleanly.
Nils rode the 690 Duke in Austria and Hungary in 2008, and in 2009 (NastyNils Testride).
The Voice of Experience
What actually separates them
- The 690 Duke has the lower seat: 34.1 in (865 mm) vs 36.6 in (930 mm).
- The 690 Duke has the larger fuel tank: 3.6 US gal (13.5 L) vs 3.2 US gal (12 L).
- The 690 Enduro R has more fork travel: 10.8 in (275 mm) vs 5.5 in (140 mm).
Which one for the way you ride
Keeping running costs low
Not built for it: 690 Duke
The 690 Duke sits this one out, so there's no cost verdict for it here.
Who each one is built for
What's good, and what you'll live with
690 Enduro R
What owners say
Strengths
- Impressive road manners for an enduro
- Premium fully adjustable WP suspension
690 Duke
From Nils' own saddle time
Strengths
- Best single-cylinder motor going
- Sportbike grip, upright seat
- Race hardware, zero prep
- Rewards beginner and expert alike
Trade-offs
- No wind protection at speed
- Runs out of top-end pull
- Forks unsettled on rough entries
- Gearbox no longer crisp
Known problems to check before you buy
690 Enduro R
- Weak rear subframe bolts The bolts securing the rear subframe can loosen or break, especially when the bike is loaded with luggage and ridden off-road.
- Fuel pump failure The in-tank fuel pump and associated filter are prone to failure, often due to clogging. Symptoms include stalling, hard starting, or no-start. Replacing the pump assembly is the common fix.
690 Duke
- Intake rocker arm bearing seizure The roller bearing on the intake rocker arm can fail, often around 9,300–10,000 miles (15,000–16,000 km), damaging the camshaft and rocker. Replacement before failure is recommended at each valve check.
- Front fork cracking (recall) Recall 09V134000 On 2009 model year 690 Duke and SMC motorcycles, the front forks could develop cracks, potentially leading to fork failure. A recall was issued by KTM to inspect and replace affected fork components.
What they cost used
These prices compare a 15-year-old 690 Enduro R with a 15-year-old 690 Duke.
- 690 Enduro R
- about $5,500
- 690 Duke
- about $4,200
At 15 years old, the KTM 690 Enduro R sits around $5,500 while the KTM 690 Duke lands near $4,200. That's a $1,300 gap in the Duke's favor. These are US market estimates, not live listings.
What they share
- Displacement
- 654 cc
- Engine
- Single-cylinder
- Cooling
- Liquid-cooled
- Peak power at
- 7,500 rpm
- Gearbox
- 6-speed
- Fork
- Upside-down (USD)
Where the spec sheets split
| 690 Enduro R | 690 Duke | |
|---|---|---|
| Seat height | 36.6 in (930 mm) | 34.1 in (865 mm) |
| Dry weight | 326 lb (148 kg) | 353 lb (160 kg) |
| 690 Enduro R | 690 Duke | |
|---|---|---|
| Power | 63 hp (46 kW) | 66 hp (48 kW) |
| Torque | 47 lb-ft (64 Nm) | 49 lb-ft (67 Nm) |
| Peak torque at | 6,000 rpm | 5,500 rpm |
| 690 Enduro R | 690 Duke | |
|---|---|---|
| Fuel capacity | 3.2 US gal (12 L) | 3.6 US gal (13.5 L) |
| 690 Enduro R | 690 Duke | |
|---|---|---|
| Front brake | 300 mm | 320 mm |
| Front tire | 90/90-21 | 120/70-17 |
| Rear tire | 140/80-18 | 160/60-17 |
| Ground clearance | 11.0 in (280 mm) | 6.1 in (155 mm) |
| Front travel | 10.8 in (275 mm) | 5.5 in (140 mm) |
| Rear travel | 10.8 in (275 mm) | 5.5 in (140 mm) |
Head to head, area by area
Both bikes on the same scale, one area at a time.
