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Description Do you want a ride that is not just a simple movement, but an adventure full of passion and speed? Our 2-stroke bicycle engine kit has ultimate performance, which will instantly ignite your cycling passion. With a speed of up to 23.61 miles per hour, you can move forward without hesitation, whether it's traveling through cities or conquering mountains and wilderness. Join us now, unleash your inner speed frenzy, and experience unprecedented cycling pleasure! Key Features Build to Last: This product is mainly made of aluminum and iron through lathe machining and spray painting. It has good resistance to impact, rust, and corrosion, allowing you to use it safely for a long time. Strong Power: This product adopts an advanced two-stroke engine, with a power of 2.1KW, a ho.