KTM 125 Duke

KTM Duke 125
Manufacturer	KTM
Also called	125 Duke
Production	2012
Class	Standard
Engine	Four stroke, single cylinder, DOHC, 4 Valves
Compression ratio	14.5:1
Horsepower	15.02 HP (11.2 KW) @ 10500RPM
Torque	8.85 ft/lbs (12.0 Nm) @ 8000RPM
Fuel System	EFI
Ignition	Contactless, controlled, fully electronic ignition system with digital ignition timing adjustment
Transmission	6 Speed
Frame	Space frame in chrome -molybdenum steel tubes Subframe: steel
Suspension	Front: 38 mm WP upside-down fork Rear: WP monoshock.
Brakes	Front: Single 280 mm disc Rear: Single 220 mm disc
Front Tire	110/70 -17
Rear Tire	150/60 -17
Wheelbase	1367 mm / 53.8 in
Seat Height	810 mm / 31.8 in
Weight	127 kg / 280 lbs (dry), 147.0 kg (wet)
Fuel Capacity	11 Liters / 2.9 US gal / 2.4 Imp gal
Manuals	Service Manual

The KTM 125 DUKE was a Single cylinder, four stroke, DOHC Naked motorcycle produced by KTM in 2017. Max torque was 8.85 ft/lbs (12.0 Nm) @ 8000 RPM. Claimed horsepower was 15.02 HP (11.2 KW) @ 10500 RPM.

Engine

The engine was a Liquid cooled cooled Four stroke, single cylinder, DOHC, 4 Valves. The engine featured a 14.5:1 compression ratio.

Drive

Power was moderated via the Multi-disc clutch, operated hydraulically.

Chassis

It came with a 110/70 -17 front tire and a 150/60 -17 rear tire. Stopping was achieved via Single 280 mm disc in the front and a Single 220 mm disc in the rear. The front suspension was a 38 mm WP upside-down fork while the rear was equipped with a WP monoshock.. The 125 Duke was fitted with a 11 Liters / 2.9 US gal / 2.4 Imp gal fuel tank. The bike weighed just 127 kg / 280 lbs. The wheelbase was 1367 mm / 53.8 in long.

Photos

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  KTM Duke 125

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  KTM Duke 125

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  KTM Duke 125

2017 KTM 125 DUKE

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  2017 KTM 125 DUKE

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  2017 KTM 125 DUKE

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  2017 KTM 125 DUKE

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  2017 KTM 125 DUKE

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  2017 KTM 125 DUKE

The 125 DUKE's meticulously manufactured, die-cast swingarm is designed and produced according to the same standards and principles as the one on the 690 DUKE R. This light alloy beauty with directly linked WP shock absorber excels in extreme torsional stiffness and outstanding tracking stability.

Overview

The RC125 appeals to the young generation (or the young at heart). Even if you’ve been riding for over 30 years, rewind the clock to your first bike. If it was a small capacity machine, you’ll know the fun they can be

The RC is powered by the same lump that’s in the 125 Duke – a water-cooled, 4-stroke single cylinder – and it’s certainly got some poke. In fact it’s right at the top of the power restriction for those with an A1 licence at 15bhp. Power delivery is smooth, and working up the six gears, either through sound and feel, or using the handy gear shift indicator, there are no uncomfortable vibrations – even at the top of the rev counter.

KTM has built a partnership with the third largest motorcycle manufacturer in the world – Indian company Bajaj – working together to produce the bikes in the range under 400cc, which includes the Duke 125 and 390. After being built, all the bikes then go through Austria for quality assurance and distribution.

KTM-RC125-029The commitment from KTM is obvious: “Just because it has a smaller capacity, doesn’t mean it takes less of a priority than any of our other models.” The company is actively investing in products for a new generation of riders, and wants to give them the best they can, transferring some of the learnings from the flagship models such as the Super Duke and Adventure onto the RC. The suspension is a good example – the RC is fitted with WP upside down (USD) forks with the same 43mm outer tube diameter as the RC8 R.

Compared to KTM’s 125 Duke, the RC has a stiffer spring inside the fork to give it more of a supersport feel, and the stroke has been reduced from 150mm to 125mm. The rear shock has 150mm of travel, and features adjustable preload – for me the standard set-up was fine, with the bike sagging slightly when I jumped aboard.

The steering head angle has been steepened to 66.5° to give more ground clearance when leaning round corners, less trail and a shorter wheelbase. The result is playful handling with increased agility.

Stopping power is provided by a four piston radially bolted caliper on the front, and a single piston caliper on the rear, developed in cooperation with Brembo. The bike features Bosch ABS as standard too.

KTM didn’t want the functional items required for riding the bike on the road to interfere with the overall look of the machine, and intended to replicate the look of the RC’s racing counterparts. You’ll find the LED indicators cleverly hidden in the mirrors, and the tail-light positioned under the rear seat cowl. Sharp styling is key and of course it features those eye catching orange wheel rims that you’ve come to expect on the KTM machines. There are some innovative touches, like the pillion seat which looks like a solo seat cowl unit but is made from rubber. The chunky 150mm rear tire provides good grip, and viewing the bike from behind, you could be forgiven for thinking it’s packing more than 124cc under those fairings.

Make Model	KTM 125 Duke
Year	2012
Engine Type	Four stroke, single cylinder, DOHC, 4 Valves
Displacement	124.7 cc / 7.6 cu-in
Bore X Stroke	58 x 47 mm
Cooling System	Liquid cooled
Compression	14.5:1
Lubrication	Forced oil lubrication with 1 Eaton pump
Induction	Electronic fuel injection
Ignition	Contactless, controlled, fully electronic ignition system with digital ignition timing adjustment
Starting	Electric
Max Power	11.3 kW / 15 hp @ 10500 rpm
Max Torque	12 Nm / 1.22 kgf-m / 8.85 ft-lb @ 8000 rpm
Clutch	Multi-disc clutch, operated hydraulically
Transmission	6 Speed
Final Drive	Chain 5/8 x 1/4" X Ring
Frame	Space frame in chrome -molybdenum steel tubes Subframe: steel
Front Suspension	38 mm WP upside-down fork
Front Wheel Travel	160 mm / 6.2 in
Rear Suspension	WP monoshock.
Rear Wheel Travel	160 mm / 6.2 in
Front Brakes	Single 280 mm disc
Rear Brakes	Single 220 mm disc
Front Tire	110/70 -17
Rear Tire	150/60 -17
Steering Head Angle	65°
Wheelbase	1367 mm / 53.8 in
Ground Clearance	170 mm / 6.7 in
Seat Height	810 mm / 31.8 in
Dry Weight	127 kg / 280 lbs
Fuel Capacity	11 Liters / 2.9 US gal / 2.4 Imp gal

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