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2007–2009 · Supermoto · Buyer's Guide
The Tarmac-Ready Single Weapon
The 690 Supermoto is what happens when KTM builds a road-legal single with no interest in compromise. The 654 cc liquid-cooled LC4 puts out 63 hp and 48 lb-ft, which on a bike this narrow is more than enough to shove you out of a corner and hold 115 mph when the road opens up. Steel trellis frame, WP suspension, wide bars, 17-inch rubber on 120/70 and 160/60. There are no ride modes, no traction control, no ABS. What you get is a chassis that turns the second you look through a corner, and a motor that answers your right hand without a filter in between.
This is a bike for someone who rides often and rides hard, and who accepts what that costs. The 34.4 in seat means you plant a boot or you tip-toe; there's no way around it. The LC4 needs attention, and the rocker arm bearings are the part that bites hardest if you ignore it. Loud valvetrain noise means you stop riding and look. Fuel pumps and in-tank filters clog, the wiring loom corrodes around the headlight if water finds a way in, the clocks fog and eventually quit, and the output shaft seal weeps oil onto your chain. None of that is fatal. All of it is on you.
Spec sheets don't ride bikes, but they set the baseline.
| Power | 63 hp (46 kW) |
|---|---|
| Torque | 48 lb-ft (65 Nm) |
| Displacement | 654 cc |
| Engine | Single-cylinder |
| Cooling | Liquid-cooled |
| Gearbox | 6-speed |
| Final drive | Chain |
| Fork | Upside-down (USD) |
| Front brake | 300 mm |
| Front tire | 120/70-17 |
| Rear tire | 160/60-17 |
| Ground clearance | 11.0 in (279 mm) |
| Seat height | 34.4 in (875 mm) |
| Fuel capacity | 3.6 gal (13.5 L) |
| Top speed | 115 mph (185 km/h) |
| Fuel economy | 33 mpg (US) |
Equipment check
Chassis
Drivetrain
You sit on top of this thing, not in it, and the first thing your hands register is how little effort it takes to move the front. The bars are wide, the tank is narrow between your knees, and your body is high enough that you steer with your hips as much as your arms. The single thumps under you at low revs and you feel it through the pegs, a hard mechanical beat that never fully disappears; the sound is real, dry, and there's nothing polite about it. At road pace it feels alive in a way that keeps you awake. Stop-and-go traffic, and the tall seat and short wheelbase let you flick between lanes without thinking about it. Long straights are where the deal gets honest: 3.6 gal and 33 mpg means you'll be watching for gas before your legs complain.
Over the years I've collected what 690 Supermoto owners tell me: long threads, paddock talk, conversations with people who've lived with one, and messages that land in my inbox after a season of real use. The split in that chatter is unusually clean. Riders love the way it moves and what the motor gives them, and almost every complaint lands on the same two shelves: things that break, and a setup that gives up when you push.
Rocker arm bearing failure
Premature wear of the rocker arm bearings can cause loud valvetrain noise and, in severe cases, seized rockers, damaged cams, and metal debris in the oil. Replacing rocker arms at each valve clearance check is common preventive maintenance.
Fuel pump and filter clogging
The in-tank fuel filter and pump can clog prematurely, leading to lean running, stalling, or a no-start condition. Many owners replace the pump and filter proactively.
Wiring loom corrosion
Water ingress around the headlight and beak area can cause corrosion in the wiring loom and connectors, leading to intermittent electrical faults, warning lights, or starting issues. Sealing and greasing connectors is advised.
Instrument cluster failure due to water ingress
Condensation forms inside the digital instrument cluster after riding in wet conditions, eventually causing display or complete failure. The clocks are not well sealed.
Output shaft oil seal leak
The output shaft oil seal can fail, causing an oil leak at the front sprocket area. Replacement of the seal is required; if caught early it’s a minor fix but can lead to oil contamination of the chain.
Where this KTM 690 Supermoto pulls ahead of — or falls behind — its rivals on the numbers, and the typical bike in its class on character.
Power
Torque
Displacement
Seat height
Forget spec-sheet bragging. Here's who the 690 Supermoto is actually built for.
Angeles Crest is exactly what this bike was drawn for. It changes direction faster than anything you'll be riding with, and the 11.0 in of clearance means the road runs out before the lean does.
Made for Angeles Crest Highway · Coronado Trail / US 191 · Highway 1 / Big Sur
Fine on the tight stuff, honest about the rest. With 3.6 gal and a 34.4 in seat, the ride out to the Hill Country is work, and you'll stop for gas more than your friends do.
Made for Austin / Texas Hill Country · Twisted Sisters · Austin / Handbuilt Motorcycle Show
If you're chasing technique over top speed on the Dragon, this rewards you every corner. It's the tool for riders who want to feel exactly what the front tire is doing.
Made for Back of the Dragon · Blue Ridge Parkway · Cherohala Skyway
If this one isn't quite the fit, these are the bikes worth riding back-to-back against it.
