Unleash the Beast: Meet The Iron Maiden IM70
Mar 12th 2025
Half Moped, Half China Doll Beast
Imagine if a high-performance moped and your classic China Doll engine had a baby. That’s the Iron Maiden Bicycle Engine, a motorized bike engine that redefines what’s possible. This isn’t simply an upgraded engine kit, this is next-level motorized bike technology!
Minarelli-Inspired Iron Cylinder - Tougher Than a Tank
Now, imagine what happens when you take a legendary Minarelli top end, forged from iron, and adapt it to a bike engine case. You get an engine that laughs in the face of extreme temperatures, high RPMs, and abuse from over-enthusiastic racers. These new iron cylinders not only last longer because of their superior metal, they also manage heat and compression more uniformly to offer rock-solid durability! All this means you can go full throttle without a second thought…after your appropriate break-in period, of course.
Built for Speed - Premium Parts, No Junk
Every piece of the Iron Maiden is designed for one thing, performance. The stuffed crankcase boosts better power output, and the new Mikuni VM20 carb and CNC reed valve set up ensures this beast gets the perfect fuel mixture every time. What does that mean for you? Higher top speed, more low-end power, and most importantly, serious reliability!
Reed Valve with CNC Intake - The Key to Unleashing More Power
Most stock engines don’t come standard with a reed valve or windowed piston. The Iron Maiden IM70 does. Why? Because it changes the game. This flat reed valve with CNC intake and CNC spacer system provide the benefits of a case reed with just a stock case. It controls airflow like a finely tuned orchestra, optimizing fuel efficiency, preventing backflow, and giving you crisper acceleration every time you hit the throttle. This newly designed bolt-on system is dramatically more stable than previous systems. The enhanced stability results in the prevention of air leaks and other issues down the road!
True 70cc Power - No Lies, No Gimmicks
Let’s be real, some so-called 80cc engines are 66cc in disguise. Not this one. With a true 47mm bore and 40mm stroke, this bad boy is a real 70cc powerhouse. Combine that with the new Minarelli inspired performance-grade components, a Mikuni VM20 carb, and you’ve got an engine that isn’t just fast, it’s a monster!
Is the Iron Maiden for You?
If you’re happy puttering around on a basic 2-stroke kit like the Zeda 80, the Iron Maiden might be too much for you. If you crave next-level power, amazing durability, and top-tier high-performance engineering, this engine was made to be on your bike!
So… are you ready to ride the Iron Maiden? Do you still have questions? Feel free to give us a call or send us a message and our team is here to help!