{"product_id":"rotax-125-max-senior-2026-evo","title":"Rotax 125 Max  Evo","description":"\u003cp\u003e\u003cstrong\u003eComplete Rotax Max Senior EVO engine package with everything you need!\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Rotax 125 Senior Max EVO is the latest model of many since Rotax produced its first go-kart engine over 40 years ago.\u003c\/p\u003e\n\u003cp\u003eBRP Rotax has always put full focus on an exciting and affordable driving experience combined with good reliability.\u003c\/p\u003e\n\u003cp\u003eIn fact, Rotax is the only manufacturer in the world to offer a factory warranty on their racing engines - a testament to the high quality that these hand-built engines from Austria can deliver.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTechnology:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWith the Rotax 125 Senior Max Evo, you get everything you could ask for in a modern go-kart engine:\u003c\/p\u003e\n\u003cp\u003eReliable electric start with long battery life\u003c\/p\u003e\n\u003cp\u003eOfficial Apps to help you tune your engine perfectly\u003c\/p\u003e\n\u003cp\u003eEngine control (Ignition \u0026amp; Exhaust port and more) is fully managed by the engine's ECU (Electronic Control Unit), giving you perfect results every time.\u003c\/p\u003e\n\u003cp\u003eAll parts are manufactured in-house at Rotax's state-of-the-art factory in Austria\u003c\/p\u003e\n\u003cp\u003eThe engines have a very long running time between service - up to 50h running time which is significantly longer than all comparable competitors.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEngine components:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCrankcase:\u0026nbsp;\u003c\/strong\u003ethe crankcase is made of injection moulded aluminium\u003c\/p\u003e\n\u003cp\u003eWith over 15bars of pressure molten aluminium is pressed into a mould, The high pressure guarantees a strong and solid casting with perfect results.\u003c\/p\u003e\n\u003cp\u003eAfter casting, the crankcase is machined by computer-controlled milling machines with an extremely high precision, after which the entire crankcase is powder coated with a durable surface paint.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePiston and cylinder:\u003c\/strong\u003e The cylinders are also cast in aluminium before CNC machining to obtain the most uniform result possible.\u0026nbsp;\u0026nbsp;\u003c\/p\u003e\n\u003cp\u003eThe cylinder barrel is Nicasil treated - Nicasil is one of the hardest coatings available and has almost unlimited durability.\u003c\/p\u003e\n\u003cp\u003eAnother big plus with Nicasil is that you only need 2% oil mixture, good for the environment and good for your wallet.\u003c\/p\u003e\n\u003cp\u003eThe piston is forged from aluminium which after machining is coated with a Teflon surface, this increases longevity and gives you the best possible performance and reduced friction.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eExhaust port:\u003c\/strong\u003e on the cylinder is a variable exhaust port, simply explained the cylinder changes according to the engine speed.\u003c\/p\u003e\n\u003cp\u003eAt low revs the exhaust port is closed and gives you a torquey engine, then as the revs increase the exhaust port is opened by the digital engine management system and gives you the best possible peak power.\u003c\/p\u003e\n\u003cp\u003eYou get the best of both worlds and avoid the rather uncontrollable top end of an engine without an exhaust port.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCooling:\u0026nbsp;\u003c\/strong\u003eall Rotax engines have a closed water cooling system that operates without external water pumps, the high flow rate and the large aluminium radiator guarantee the right working temperature ( 50-60c ) even during hard driving.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIgnition:\u003c\/strong\u003e the ignition is digital and fully electronically controlled via the engine's computer box, with the help of a sensor at the crankshaft you are guaranteed to get the correct ignition every time.\u0026nbsp; You also get a variable ignition curve that adapts to the engine's condition, all for the best possible performance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eClutch:\u003c\/strong\u003e The hardened steel clutch transmits engine power to the drive chain and then to the rear axle.\u003c\/p\u003e\n\u003cp\u003eThe clutch normally lasts for several years and is service-free, your engine drive is mounted in the clutch drum and by changing this you can easily rewire the engine in under 1 minute.\u003c\/p\u003e\n\u003cp\u003eCarburettor \u0026amp; Fuel: A powerful vaacum driven fuel pump feeds fuel to a 34mm Dellorto carburettor designed specifically for this Rotax engine.\u003c\/p\u003e\n\u003cp\u003eThe carburetor can be adjusted by changing the nozzle and adjusting the throttle needle, information on which fuel you should use is available via the Rotax App which, via your position, gives you the optimum fuel based on temperature and air pressure. Mounted on the carburettor is the engine's air intake, via a foam filter the air is led into the carburettor - guaranteed clean and with the correct flow.\u003c\/p\u003e\n\u003cp\u003eThanks to the clever design of the air can, running the engine in heavy rain is no problem at all.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCylinder capacity: 125cc\u003c\/li\u003e\n\u003cli\u003ePower: 30hp at 11,500 rpm\u003c\/li\u003e\n\u003cli\u003eTorque: 21nm at 9000rpm\u003c\/li\u003e\n\u003cli\u003eWeight: 12kg (Engine only) 23kg (Complete engine package)\u003c\/li\u003e\n\u003cli\u003eIgnition: electronic ignition Exhaust port: electronic variable exhaust port Power system: 12v 7ah\u003c\/li\u003e\n\u003cli\u003eCooling: Water-cooled\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003cstrong\u003e\u003cbr\u003eYou get everything you need to run and use your Rotax engine.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIncluded in the engine package:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eComplete engine\u003c\/p\u003e\n\u003cp\u003eCooler and radiator hoses\u003c\/p\u003e\n\u003cp\u003eExhaust pipes, silencers and exhaust brackets\u003c\/p\u003e\n\u003cp\u003eFuel pump and carburettor and fuel filter\u003c\/p\u003e\n\u003cp\u003eThrottle cable\u003c\/p\u003e\n\u003cp\u003eIntake silencer \/ Air can with bracket\u003c\/p\u003e\n\u003cp\u003eComplete electrical system (spark plug, ignition coil, cable harness, starter motor, battery, control panel, ignition sensor and solenoid valve for exhaust port)\u003c\/p\u003e\n\u003cp\u003eFrame bracket for battery and electrical system\u003c\/p\u003e\n\u003cp\u003eInstruction manual and engine manual\u0026nbsp;\u003c\/p\u003e","brand":"Rotax","offers":[{"title":"Default Title","offer_id":54242064302403,"sku":"64017","price":3137.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0943\/9569\/5427\/files\/Rotax-Max-Senior-2025-1.jpg?v=1749044605","url":"https:\/\/www.radne.com\/products\/rotax-125-max-evo-4","provider":"Radne","version":"1.0","type":"link"}