2017 - 2018 KTM 500 EXC-F

Make Model	KTM 500 EXC-F
Year	2017 - 18
Engine	Four stroke, single cylinder, SOHC, 4 valves per cylinder
Capacity	510.4 cc / 31.1 cu-in
Bore x Stroke	95 x 72 mm
Cooling System	Liquid cooled
Compression Ratio	11.9:1
Induction	Keihin MX FCR 39
Ignition	Contactless controlled fully electronic ignition with digital ignition adjustment, type Kokusan
Starting	Electric
Clutch	Multidisc clutch in oil bath, hydraulically activated
Transmission	6 Speed
Final Drive	Chain 5/8 x 1/4"
Primary Drive Ratio	32:76
Gear Ratios	1st 14:36 / 2nd 17:32 / 3rd 19:28 / 4th 22:26 / 5th 23:24 / 6th 26:21
Final Drive Ratio	13:50
Frame	Central double-cradle type 25CrMo4
Front Suspension	WP Performance Systems MXMA 4860 upside down
Front Wheel Travel	300 mm / 11.8 in
Rear Suspension	WP Performance Systems 4618 PDS DCC
Rear Wheel Travel	310 mm / 12.2 in
Front Brakes	Single 260 mm disc
Rear Brakes	Single 220 mm disc
Front Tyre	90/90 - 21
Rear Tyre	120/90 - 18
Steering Head Angle	63.5
Wheelbase	1482 ± 10 mm
Seat Height	960 mm . 37.7 in
Ground Clearance	355 mm / 13.9 in
Wet Weight	106.5 kg / 234.7 lbs
Fuel Capacity	8.5 Litres / 2.2 US gal / 1,9 Imp gal

Engine
Small in dimensions, sky-high on output. The KTM 500 EXC-F’s fuel-injected powerhouse makes it the most compact and lightest 500 on the market, while delivering groundbreaking torque and power figures over the entire rev range thanks to a single overhead camshaft cylinder head and the latest electronic fuel injection. Class-leading and cutting-edge: just the way we like it.

Cylinder Head
A single overhead camshaft controls intake and exhaust through optimized ports, while a cutting-edge combustion chamber and water jacket create mind-blowing power while managing heat. The engine’s four valves rely on extremely rigid rocker arms. Double lateral brackets fix the engine to the frame and reduce vibrations.

Crankshaft
The KTM 500 EXC-F’s crankshaft utilizes a short connecting rod, which makes for an overall compact and lightweight engine with a snappy power delivery. A plain big (bottom) end bearing with two force-fitted bearing shells runs directly on the crank pin. The necessary oil feed for this bearing is ensured by the engine’s pressurized lubrication. This design is a decisive benefit in terms of the crankshaft service interval, which can be lengthened due to the plain bearing. So just pin it, all day long.

E-Starter
The KTM 500 EXC-F is fitted with a unique E-starter as standard, which is a clear advantage when it comes to crunch time in the heat of battle. A strong starter motor and a reliable lithium ion battery will fire up your 500 time and time again at the push of a button. In order to reduce weight to the minimum, there is no kick-starter system. You won’t miss it. If by any chance you do, just retrofit a KTM PowerParts replacement kit to get your kicks.

Crankcases and engine covers
The design of the die-cast crankcases allows for minimal weight and a very centralized shaft configuration. This makes the engine short and compact, while contributing to an efficient centralization of masses. The engine covers also feature a solid surface structure, which reduces the wear caused by the rider’s boots. This way, your EXC-F will keep looking better longer.