{"title":"MR17 Tuned Engines - New \u0026 Used Race Ready and Stock Engines (IAME \u0026 Vortex)","description":"\u003ch2\u003eMR17 New Engines — Stock \u0026amp; Race Ready Configurations\u003c\/h2\u003e\u003cp\u003eMR17 tuned engines, developed under the DRIVEN partnership (formerly Zanella Racing), are available for purchase in two configurations — built for competitors running \u003cstrong\u003eUSPKS, SKUSA, STARS Nationals\u003c\/strong\u003e, and regional series including TSRS, Florida Karting Series, and Pro Kart Challenge across the USA.\u003c\/p\u003e\u003cp\u003eThis is a \u003cstrong\u003eperformance-first program\u003c\/strong\u003e — for drivers and programs that demand results, reliability, and expert support at the highest level.\u003c\/p\u003e\u003ch3\u003eNew Engine Configurations\u003c\/h3\u003e\u003ch4\u003eNew Stock\u003c\/h4\u003e\u003cp\u003eFactory-fresh engines delivered in standard configuration, ready for your team's build program. Ideal for programs with in-house technical staff who prefer to prep and tune to their own spec.\u003c\/p\u003e\u003ch4\u003eNew Race Ready\u003c\/h4\u003e\u003cp\u003eFully prepped, dyno-tested, and competition-ready out of the box. Each Race Ready engine includes a \u003cstrong\u003eDyno Report\u003c\/strong\u003e with verified HP and torque figures — so you know exactly what you're putting on the kart before the first session.\u003c\/p\u003e\u003ch3\u003eNew Engine Purchase Benefit\u003c\/h3\u003e\u003cp\u003eEvery new engine purchase includes a \u003cstrong\u003e10% discount on your next rebuild\u003c\/strong\u003e, applied to the registered engine serial number. This benefit is tied directly to your engine and is available whenever you're ready to schedule a rebuild through DRIVEN.\u003c\/p\u003e\u003ch3\u003eAvailable Platforms\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eIAME — 60cc and 100cc\u003c\/li\u003e\n\u003cli\u003eRotax — 60cc and 100cc\u003c\/li\u003e\n\u003cli\u003eVortex — 60cc and 100cc\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eServing Teams \u0026amp; Drivers Competing In\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eUSPKS — United States Pro Kart Series\u003c\/li\u003e\n\u003cli\u003eSKUSA — Superkarts! USA ProKart Challenge \u0026amp; SuperNationals\u003c\/li\u003e\n\u003cli\u003eSTARS Nationals\u003c\/li\u003e\n\u003cli\u003eTSRS and regional series throughout the USA\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eService Area\u003c\/h3\u003e\u003cp\u003eOur primary service area covers events across the \u003cstrong\u003eUnited States\u003c\/strong\u003e. International orders are available on request — contact us directly to discuss your program needs.\u003c\/p\u003e\u003ch3\u003eThe DRIVEN Standard\u003c\/h3\u003e\u003cp\u003eEvery MR17 engine is prepared, tested, and documented before delivery. We stand behind every unit with full technical support throughout your race program.\u003c\/p\u003e\u003cp\u003e\u003cem\u003ePerformance. Precision. Support.\u003c\/em\u003e\u003c\/p\u003e","products":[{"product_id":"mr17-kart-tuned-racing-engines-iame","title":"MR17 | IAME | PRO Kart Racing Engines | Stock \u0026 Blueprinted","description":"\u003ch2\u003eIAME Kart Racing Engines — New Stock \u0026amp; Blueprinted Race Prep\u003c\/h2\u003e\u003cp\u003eMR17 tuned IAME engines, developed under the DRIVEN partnership (formerly Zanella Racing), are built for competitors running \u003cstrong\u003eUSPKS, SKUSA, STARS Nationals\u003c\/strong\u003e, and regional series throughout the USA. Available in New Stock and Blueprinted Race Prep configurations across the full IAME lineup — from Mini Swift to X30 Super Shifter.\u003c\/p\u003e\u003cp\u003eThis is a performance-first program for drivers and programs that prioritize results, reliability, and expert support over entry-level price points.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAll engines include shipping.\u003c\/strong\u003e\u003c\/p\u003e\u003chr\u003e\u003ch3\u003eEngine Configurations\u003c\/h3\u003e\u003ch4\u003eNew (Stock) — Complete Package\u003c\/h4\u003e\u003cp\u003eEvery new engine purchase ships as a complete, ready-to-install package including:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eEngine\u003c\/li\u003e\n\u003cli\u003eWiring harness\u003c\/li\u003e\n\u003cli\u003eClutch\u003c\/li\u003e\n\u003cli\u003eFront sprocket\u003c\/li\u003e\n\u003cli\u003eExhaust\u003c\/li\u003e\n\u003cli\u003eAir filter\u003c\/li\u003e\n\u003cli\u003e10% discount on all future rebuilds, applied to your engine serial number\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eMR17 Blueprinted (Race Prep) — Complete Package\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eFull complete package (same as Stock, listed above)\u003c\/li\u003e\n\u003cli\u003eDyno-tested and calibrated — every engine ships with a verified HP and torque dyno sheet\u003c\/li\u003e\n\u003cli\u003eBlueprinted for maximum legal performance — squish, timing, and porting optimized within class rules\u003c\/li\u003e\n\u003cli\u003eNationally proven race prep trusted by podium-level programs\u003c\/li\u003e\n\u003cli\u003eTrackside support available at select national events — confirm availability at checkout\u003c\/li\u003e\n\u003cli\u003e10% discount on all future rebuilds, applied to your engine serial number\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eUsed (Engine \u0026amp; Carb Only)\u003c\/h4\u003e\u003cp\u003eUsed engines include the engine and carburetor only — no additional components. Bore size is approximately 3–4 sizes from maximum legal bore, meaning these engines are at the top of their performance life. Recommended for experienced programs running them as dedicated racing engines.\u003c\/p\u003e\u003chr\u003e\u003ch3\u003eNew Engine Purchase Benefit\u003c\/h3\u003e\u003cp\u003eEvery new engine purchase — Stock or Blueprinted — includes a \u003cstrong\u003e10% discount on your next rebuild\u003c\/strong\u003e, tied to the registered engine serial number and valid for all future rebuilds serviced through DRIVEN.\u003c\/p\u003e\u003chr\u003e\u003ch3\u003eEngine Specifications \u0026amp; Class Fitment\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eDisplacement\u003c\/th\u003e\n\u003cth\u003eMax Power\u003c\/th\u003e\n\u003cth\u003eMax Torque\u003c\/th\u003e\n\u003cth\u003eMax RPM\u003c\/th\u003e\n\u003cth\u003eClass\u003c\/th\u003e\n\u003cth\u003eAge (USA)\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMini Swift\u003c\/td\u003e\n\u003ctd\u003e59cc\u003c\/td\u003e\n\u003ctd\u003e10 HP\u003c\/td\u003e\n\u003ctd\u003e7 Nm\u003c\/td\u003e\n\u003ctd\u003e14,000 RPM\u003c\/td\u003e\n\u003ctd\u003e60cc Stock\u003c\/td\u003e\n\u003ctd\u003e7–12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eKA100 (Reedjet)\u003c\/td\u003e\n\u003ctd\u003e98.53cc\u003c\/td\u003e\n\u003ctd\u003e22 HP\u003c\/td\u003e\n\u003ctd\u003e15 Nm\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003ctd\u003eKA100\u003c\/td\u003e\n\u003ctd\u003e12+\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eX30 125cc\u003c\/td\u003e\n\u003ctd\u003e123.67cc\u003c\/td\u003e\n\u003ctd\u003e30 HP\u003c\/td\u003e\n\u003ctd\u003e19.5 Nm\u003c\/td\u003e\n\u003ctd\u003e16,000 RPM\u003c\/td\u003e\n\u003ctd\u003e125cc Stock\u003c\/td\u003e\n\u003ctd\u003e12+\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eX30 Super Shifter 175cc\u003c\/td\u003e\n\u003ctd\u003e174.46cc\u003c\/td\u003e\n\u003ctd\u003e49 HP\u003c\/td\u003e\n\u003ctd\u003e27 Nm\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003ctd\u003e175cc Gearbox Stock\u003c\/td\u003e\n\u003ctd\u003e15+\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003chr\u003e\u003ch3\u003eEngine Notes\u003c\/h3\u003e\u003ch4\u003eMini Swift — 60cc\u003c\/h4\u003e\u003cp\u003eThe Mini Swift is the entry point for serious competition in the USA, built for drivers ages 7–12 competing in the 60cc Stock class. A single-cylinder, 2-stroke air-cooled engine with centrifugal dry clutch and electric starter, it delivers reliable, class-legal performance in a straightforward package. Carburetor: Tillotson HW-31A. Bore: 41.81mm (max 42.10mm). Stroke: 43mm.\u003c\/p\u003e\u003ch4\u003eKA100 (Reedjet) — 100cc\u003c\/h4\u003e\u003cp\u003eThe KA100 is one of the most widely run 100cc engines in the USA, trusted at USPKS, SKUSA, and regional series for its consistent performance and low operating cost. Reed valve induction, analogic ignition with adjustable timing, and electric starter make it a practical, high-output platform for Junior and Senior competitors ages 12 and up. Carburetor: Tillotson HW-33A. Bore: 48.20mm (max 48.53mm). Stroke: 54mm.\u003c\/p\u003e\u003ch4\u003eX30 125cc — Spec. UK\/USA\u003c\/h4\u003e\u003cp\u003eThe X30 is the most successful engine in modern karting, active in more than 30 countries and trusted at every level from club racing to international championships. It combines modern features — electric starter, balancer shaft, water cooling, and digital ignition — with traditional specifications including a diaphragm carburetor and no power valve. The result is an engine that is consistent, durable, and genuinely fun to drive. All X30 units are manufactured on latest-generation CNC machining centers, ensuring zero performance variance between engines. Carburetor: Tillotson HW-27A. Bore: 54.00mm (max 54.28mm). Stroke: 54mm. For competitors ages 12 and up.\u003c\/p\u003e\u003ch4\u003eX30 Super Shifter — 175cc Spec. USA\u003c\/h4\u003e\u003cp\u003eThe X30 Super Shifter is the pinnacle of the IAME lineup — a water-cooled, 6-speed gearbox engine delivering 49 HP from 174.46cc. Built for the 175cc Gearbox Stock class and designed for competitors ages 15 and up, it combines the proven X30 platform with the added dimension of sequential shifting. Reed valve induction, analogic ignition, and push start. Carburetor: Tillotson HB-15A. Bore: 63.90mm (max 64.26mm). Stroke: 54.40mm.\u003c\/p\u003e\u003chr\u003e\u003ch3\u003eLead Times\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNew (Stock)\u003c\/strong\u003e — approximately 1 week (subject to order volume)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlueprinted (Race Prep)\u003c\/strong\u003e — approximately 2 weeks (subject to order volume)\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch3\u003eService Area\u003c\/h3\u003e\u003cp\u003ePrimary service covers events across the \u003cstrong\u003eUnited States\u003c\/strong\u003e. International orders are available on request — contact us directly to discuss your program needs.\u003c\/p\u003e\u003chr\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003ch4\u003eWhat is the difference between Stock and MR17 Blueprinted?\u003c\/h4\u003e\u003cp\u003eStock engines are factory-fresh and ready to race within class specifications. MR17 blueprinting involves detailed hand-finishing, dyno calibration, and tuning to maximize performance within class rules.\u003c\/p\u003e\u003ch4\u003eAre all Blueprinted engines dyno tested?\u003c\/h4\u003e\u003cp\u003eYes. Every MR17 Blueprinted engine is dyno-tested and ships with a dyno sheet showing horsepower and torque output.\u003c\/p\u003e\u003ch4\u003eWhat does a Used engine include?\u003c\/h4\u003e\u003cp\u003eUsed engines include the engine and carburetor only. Bore size is 3–4 sizes from maximum legal bore — these are engines at the top of their performance life, suited for programs running them as dedicated race engines.\u003c\/p\u003e\u003ch4\u003eHow does the 10% rebuild discount work?\u003c\/h4\u003e\u003cp\u003eAll new engine purchases — Stock or Blueprinted — qualify for a 10% discount on future rebuilds. The discount is registered to your engine serial number and applies to all rebuilds serviced through DRIVEN.\u003c\/p\u003e\u003ch4\u003eAre these engines legal for SKUSA, USPKS, and STARS?\u003c\/h4\u003e\u003cp\u003eAll IAME engines listed are prepared to meet the specifications of SKUSA, USPKS, STARS, and most major karting series. Always verify against your current series rulebook for any updates.\u003c\/p\u003e\u003ch4\u003eIs trackside support available?\u003c\/h4\u003e\u003cp\u003eMR17 trackside support is available at select national and regional events. Confirm availability for your event at checkout or contact us directly.\u003c\/p\u003e","brand":"MR17 | Karting Engines","offers":[{"title":"IAME M1 BAMBINO \/ NEW (STOCK)","offer_id":47493479694493,"sku":null,"price":1804.5,"currency_code":"USD","in_stock":true},{"title":"IAME M1 BAMBINO \/ BLUEPRINTED (RACE PREP)","offer_id":47493479727261,"sku":null,"price":2459.5,"currency_code":"USD","in_stock":true},{"title":"IAME 60CC \/ NEW (STOCK)","offer_id":47493479760029,"sku":null,"price":2250.0,"currency_code":"USD","in_stock":true},{"title":"IAME 60CC \/ BLUEPRINTED (RACE PREP)","offer_id":47493479792797,"sku":null,"price":2999.0,"currency_code":"USD","in_stock":true},{"title":"IAME 60CC \/ USED","offer_id":47860385939613,"sku":null,"price":2500.0,"currency_code":"USD","in_stock":true},{"title":"IAME KA100 \/ NEW (STOCK)","offer_id":47493479825565,"sku":null,"price":3124.5,"currency_code":"USD","in_stock":true},{"title":"IAME KA100 \/ BLUEPRINTED (RACE PREP)","offer_id":47493479858333,"sku":null,"price":3879.5,"currency_code":"USD","in_stock":true},{"title":"IAME KA100 \/ USED","offer_id":47860385972381,"sku":null,"price":3500.0,"currency_code":"USD","in_stock":true},{"title":"IAME X30 \/ NEW (STOCK)","offer_id":47493479891101,"sku":null,"price":3674.5,"currency_code":"USD","in_stock":true},{"title":"IAME X30 \/ BLUEPRINTED (RACE PREP)","offer_id":47493479923869,"sku":null,"price":4499.0,"currency_code":"USD","in_stock":true},{"title":"IAME X30 \/ USED","offer_id":47860386005149,"sku":null,"price":3950.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0616\/6501\/8013\/files\/mini-swift-60cc-usa-007b-3-63_1600x_500x_8ce6324b-c814-490e-9ec5-fb7fe35cdd1f.jpg?v=1766111742"},{"product_id":"mr17-vortex-pro-kart-racing-engines-stock-blueprinted","title":"MR17 | VORTEX | PRO Kart Racing Engines | Stock \u0026 Blueprinted","description":"\u003ch2\u003eVortex Kart Racing Engines — New Stock \u0026amp; Blueprinted Race Prep\u003c\/h2\u003e\u003cp\u003eMR17 tuned Vortex engines, developed under the DRIVEN partnership (formerly Zanella Racing), are built for competitors running \u003cstrong\u003eUSPKS, SKUSA, STARS Nationals\u003c\/strong\u003e, and regional series throughout the USA. Available in New Stock and Blueprinted Race Prep configurations across the Vortex ROK lineup — from Mini ROK to ROK Shifter.\u003c\/p\u003e\u003cp\u003eThis is a performance-first program for drivers and programs that prioritize results, reliability, and expert support over entry-level price points.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAll engines include shipping.\u003c\/strong\u003e\u003c\/p\u003e\u003chr\u003e\u003ch3\u003eEngine Configurations\u003c\/h3\u003e\u003ch4\u003eNew (Stock) — Complete Package\u003c\/h4\u003e\u003cp\u003eEvery new engine purchase ships as a complete, ready-to-install package including:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eEngine\u003c\/li\u003e\n\u003cli\u003eWiring harness\u003c\/li\u003e\n\u003cli\u003eClutch\u003c\/li\u003e\n\u003cli\u003eFront sprocket\u003c\/li\u003e\n\u003cli\u003eExhaust\u003c\/li\u003e\n\u003cli\u003eAir filter\u003c\/li\u003e\n\u003cli\u003e10% discount on all future rebuilds, applied to your engine serial number\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eMR17 Blueprinted (Race Prep) — Complete Package\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eFull complete package (same as Stock, listed above)\u003c\/li\u003e\n\u003cli\u003eDyno-tested and calibrated — every engine ships with a verified HP and torque dyno sheet\u003c\/li\u003e\n\u003cli\u003eBlueprinted for maximum legal performance — optimized within class rules\u003c\/li\u003e\n\u003cli\u003eNationally proven race prep trusted by podium-level programs\u003c\/li\u003e\n\u003cli\u003eTrackside support available at select national events — confirm availability at checkout\u003c\/li\u003e\n\u003cli\u003e10% discount on all future rebuilds, applied to your engine serial number\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eUsed (Engine \u0026amp; Carb Only)\u003c\/h4\u003e\u003cp\u003eUsed engines include the engine and carburetor only — no additional components. Bore size is approximately 3–4 sizes from maximum legal bore, meaning these engines are at the top of their performance life. Recommended for experienced programs running them as dedicated racing engines.\u003c\/p\u003e\u003chr\u003e\u003ch3\u003eNew Engine Purchase Benefit\u003c\/h3\u003e\u003cp\u003eEvery new engine purchase — Stock or Blueprinted — includes a \u003cstrong\u003e10% discount on your next rebuild\u003c\/strong\u003e, tied to the registered engine serial number and valid for all future rebuilds serviced through DRIVEN.\u003c\/p\u003e\u003chr\u003e\u003ch3\u003eEngine Specifications \u0026amp; Class Fitment\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eDisplacement\u003c\/th\u003e\n\u003cth\u003eMax Power\u003c\/th\u003e\n\u003cth\u003eMax Torque\u003c\/th\u003e\n\u003cth\u003eMax RPM\u003c\/th\u003e\n\u003cth\u003eDriver Class\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eROK Mini\u003c\/td\u003e\n\u003ctd\u003e60cc\u003c\/td\u003e\n\u003ctd\u003e10 HP @ 11,000 RPM\u003c\/td\u003e\n\u003ctd\u003e6.5 Nm @ 9,000 RPM\u003c\/td\u003e\n\u003ctd\u003e15,500 RPM\u003c\/td\u003e\n\u003ctd\u003eMini \/ Young Drivers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eROK VLR\u003c\/td\u003e\n\u003ctd\u003e100cc\u003c\/td\u003e\n\u003ctd\u003e20 HP @ 9,800 RPM\u003c\/td\u003e\n\u003ctd\u003e1.4 Kgm @ 9,600 RPM\u003c\/td\u003e\n\u003ctd\u003e16,000 RPM\u003c\/td\u003e\n\u003ctd\u003eJunior \/ Senior\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eROK GP\u003c\/td\u003e\n\u003ctd\u003e125cc\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003ctd\u003e20.2 Nm @ 11,500 RPM\u003c\/td\u003e\n\u003ctd\u003e15,000 RPM\u003c\/td\u003e\n\u003ctd\u003eJunior\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eROK Shifter\u003c\/td\u003e\n\u003ctd\u003e125cc\u003c\/td\u003e\n\u003ctd\u003e43 HP @ 13,900 RPM\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003ctd\u003e14,000 RPM\u003c\/td\u003e\n\u003ctd\u003eShifter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003chr\u003e\u003ch3\u003eEngine Notes\u003c\/h3\u003e\u003ch4\u003eROK Mini\u003c\/h4\u003e\u003cp\u003eThe ROK Mini is dedicated to young drivers entering competition. Designed to be safe and approachable, it allows drivers to build confidence and develop technique without unnecessary complexity — while still delivering genuine competitive performance.\u003c\/p\u003e\u003ch4\u003eROK VLR\u003c\/h4\u003e\u003cp\u003eThe VLR is engineered around three core principles: reliability, ease of operation, and low maintenance cost. Designed for straightforward inspection and servicing, it is an ideal platform for programs focused on consistent, cost-effective competition.\u003c\/p\u003e\u003ch4\u003eROK GP — Limited Availability\u003c\/h4\u003e\u003cp\u003eThe ROK GP has been replaced by the new ROK SV. This is your last opportunity to purchase one of the most proven engines in karting history. The ROK GP Junior immediately established itself on the world stage for its spirited performance, practical structure, and high reliability — engineered to deliver competitive output while maintaining durability across a full season.\u003c\/p\u003e\u003ch4\u003eROK Shifter\u003c\/h4\u003e\u003cp\u003eThe ROK Shifter was developed for drivers who want to compete in a gearbox category without sacrificing the core ROK philosophy: stable regulations and controlled costs over time. At 43 HP and 125cc, it delivers serious performance in a platform built for long-term competitive viability.\u003c\/p\u003e\u003chr\u003e\u003ch3\u003eLead Times\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNew (Stock)\u003c\/strong\u003e — approximately 1 week (subject to order volume)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlueprinted (Race Prep)\u003c\/strong\u003e — approximately 2 weeks (subject to order volume)\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch3\u003eService Area\u003c\/h3\u003e\u003cp\u003ePrimary service covers events across the \u003cstrong\u003eUnited States\u003c\/strong\u003e. International orders are available on request — contact us directly to discuss your program needs.\u003c\/p\u003e\u003chr\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003ch4\u003eWhat is the difference between Stock and MR17 Blueprinted?\u003c\/h4\u003e\u003cp\u003eStock engines are factory-fresh and ready to race within class specifications. MR17 blueprinting involves detailed hand-finishing, dyno calibration, and tuning to maximize performance within class rules.\u003c\/p\u003e\u003ch4\u003eAre all Blueprinted engines dyno tested?\u003c\/h4\u003e\u003cp\u003eYes. Every MR17 Blueprinted engine is dyno-tested and ships with a dyno sheet showing horsepower and torque output.\u003c\/p\u003e\u003ch4\u003eWhat does a Used engine include?\u003c\/h4\u003e\u003cp\u003eUsed engines include the engine and carburetor only. Bore size is 3–4 sizes from maximum legal bore — these are engines at the top of their performance life, suited for programs running them as dedicated race engines.\u003c\/p\u003e\u003ch4\u003eHow does the 10% rebuild discount work?\u003c\/h4\u003e\u003cp\u003eAll new engine purchases — Stock or Blueprinted — qualify for a 10% discount on future rebuilds. The discount is registered to your engine serial number and applies to all rebuilds serviced through DRIVEN.\u003c\/p\u003e\u003ch4\u003eAre these engines legal for SKUSA, USPKS, and STARS?\u003c\/h4\u003e\u003cp\u003eAll Vortex ROK engines listed are prepared to meet the specifications of SKUSA, USPKS, STARS, and most major karting series. Always verify against your current series rulebook for any updates.\u003c\/p\u003e\u003ch4\u003eIs trackside support available?\u003c\/h4\u003e\u003cp\u003eMR17 trackside support is available at select national and regional events. Confirm availability for your event at checkout or contact us directly.\u003c\/p\u003e","brand":"MR17 | Karting Engines","offers":[{"title":"Mini Rok (60CC) \/ NEW (STOCK)","offer_id":47860371226781,"sku":null,"price":2099.0,"currency_code":"USD","in_stock":true},{"title":"Mini Rok (60CC) \/ BLUEPRINTED (RACE PREP)","offer_id":47860371259549,"sku":null,"price":2999.0,"currency_code":"USD","in_stock":true},{"title":"Mini Rok (60CC) \/ USED","offer_id":47860371292317,"sku":null,"price":2600.0,"currency_code":"USD","in_stock":true},{"title":"Rok VLR (100CC) \/ NEW (STOCK)","offer_id":47860371325085,"sku":null,"price":2699.0,"currency_code":"USD","in_stock":true},{"title":"Rok VLR (100CC) \/ BLUEPRINTED (RACE PREP)","offer_id":47860371357853,"sku":null,"price":3599.0,"currency_code":"USD","in_stock":true},{"title":"Rok VLR (100CC) \/ USED","offer_id":47860371390621,"sku":null,"price":2999.0,"currency_code":"USD","in_stock":true},{"title":"Rok GP (125CC) \/ USED","offer_id":47860371423389,"sku":null,"price":2400.0,"currency_code":"USD","in_stock":true},{"title":"Rok Shifter (125CC) \/ NEW (STOCK)","offer_id":47860371456157,"sku":null,"price":4730.0,"currency_code":"USD","in_stock":true},{"title":"Rok Shifter (125CC) \/ BLUEPRINTED (RACE PREP)","offer_id":47860371488925,"sku":null,"price":5680.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0616\/6501\/8013\/files\/rok-vlr-2.png?v=1776904400"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0616\/6501\/8013\/collections\/rn-image_picker_lib_temp_73f22692-db63-45cd-ba52-702129a3ba00.jpg?v=1776903678","url":"https:\/\/drivenracing.shop\/collections\/mr17-tuned-karting-engines-new.oembed","provider":"DRIVEN | Racing Shop","version":"1.0","type":"link"}