Product description
STOCK, EXCEL RIMS, ELECTRIC START! HOP ON!
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2016 KTM 250 SX-FSmall-Bore Domination
The 250 SX-F is once again the World Champion in MX2 and adds a prestigious AMA Supercross Lites Championship to its amazing trophy cabinet. The 2014 season was a great success in racing at all levels around the globe, and 2015 promises to be no different. Already known for its strong performance, the new generation 250 SX-F presents itself with a newly developed, stronger engine built into an all-new chassis. The performance combination of a powerful and much torqueier engine in a lightweight and agile chassis is sure to make the 250 SX-F the star of the show for the future. The new 250 SX-F, the lightest and best performing bike in its class, is the right choice for both the amateur and professional riders, as it will remain a winning bike that will be hard to chase for its competitors.
Features May Include:- ENGINE
The new 250 SX-F engine is based on the similar overall design of its predecessor, with some major refinements to make this MX2 power plant more compact and lighter, with the production of improved torque and power across the entire rpm range. Perhaps one of the most impressive benefits of the new design is a weight reduction of 1.1 kg to a total of 26.1 kg, including the incredibly beneficial electric starter. The reworked power unit guarantees an improved power curve over the entire rev range up to 14,000 rpm, which makes the new 250 SX-F much easier to ride for both amateur and professional riders.
- CYLINDER HEAD
The centerpiece of the compact DOHC (Double Overhead Camshaft) engine is the new cutting-edge cylinder head. It features improved combustion chamber geometry, two 150 g lighter overhead camshafts with new timings, plus a friction-optimized super-fine surface, new finger followers with a 30 % harder DLC coating and a reworked timing drive (friction reduced and shorter DID timing chain, new sprockets and chain guides). New valve springs and retainers for the four lightweight titanium valves (intake 32.5 mm, exhaust 26.5 mm) and high-flow ports create a maximized flow rate for an optimal power band and maximum performance, which concludes at an engine speed sound barrier of 14,000 rpm.
- CYLINDER & PISTON
In the reworked and shorter cylinder that has a bore of 78 mm, is a weight-reduced, forged bridged box-type piston made by CP. It features a unique piston ground shape adapted to the new combustion chamber and stands out with its extra rigid structure, combined with a low weight. The compression ratio is at 14.4:1. Thanks to the low oscillating masses, the engine offers extremely lively characteristics.
- BATTERY AND WIRING HARNESS
As in the past, all new SX-F engines are fitted with the proven electric starter a unique KTM feature and a major benefit at all levels of motocross racing. For MY 2016 the SX-F range fits a super compact and lightweight 495 g lithium-ion starter battery into a standard motocross bike, providing safe starting of the engine and reducing the weight by 1 kg over MY 2015!
- SWINGARM
As on the predecessor models, the new SX generation features a reworked cast aluminium swingarm. The updated design offers reduced weight and an optimized flex behavior supporting the frame and suspension created with a single-component casting process. The weight reduction is 250 grams.
- FRAME
The new frame design provides approximately 20 % higher torsional rigidity and 30 % less longitudinal stiffness, with newly designed engine stays for less vibration. This increased flexibility results in better absorption of
