The Aixro XR50 is exceptionally reliable due to the nature of wankel engine design (see below). The engine was initially designed for the use in unmanned aerial vehicles thus reliability has been a key characteristic of this engine since inception. It is this reliability that is at the heart of the Aixro XR50.
The engine will last around 200 hours between rebuilds. Rebuilds are simple too, consisting of the replacement of the main bearing and rotor tips for £250 inc VAT.
The Aixro XR50 is a unique kart engine in the way that it is neither a 2-stroke or a 4-stroke. It is based upon the Wankel rotary engine principle which does away with the ups and downs of the traditional piston. Instead the engine consists of an essentially triangular rotor inside a specially shaped housing.
During each full rotation of the shaft one of the three chambers on the rotor is ignited. As all the moving mass is balanced, this engine layout is free from vibration, extremely powerful, compact in size and produces low emissions.
Specification: Single rotor, Wankel design
Power: 46hp at 7800 rpm
Weight: ~ 17 kg
Torque: 47 Nm at 4500 rpm
Chamber volume: 294cc
Max. engine speed: 10500 rpm
Clutch: 2-disc centrifugal
Drive: 428 pitch
Ignition: Magnetic ignition with adjustable timing
Housing: Water cooled, partially Nicasil coated
The Aixro XR50 costs £2850 inc VAT.