4-Stroke Bicycle Engine Kits

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At BikeBerry.com we offer the most reliable, easiest-to-install 4-stroke bicycle engine kits on the net. We offer 38cc and 48cc 4-stroke bike engine kits that top out at 15-25MPH and even 79cc 4-strokes that have a max speed of 35MPH. No matter if you want to cruise or if you want to race, we’ve got the 4-stroke motorized bike kit for first-timer’s and life-time riders alike.