FITTING A NEW 100CC PETROL ENGINE TO MY MTB - MAKING THE CHEAPEST MOTOCROSS BIKE!

Fitting a new 100cc petrol engine to my MTB - Making the cheapest motocross bike! I fit a 100cc petrol engine to my mountain bike before sending it at the local trails and urban MTB freeride spots, would you ride this? I bought this 100cc petrol engine off the internet and fitted it to one of my free bike challenge mountain bikes before taking out my newly modified cheap motocross bike for a shred session around my hometown of Colchester. Although the bike is now a 100cc powered machine it really wasn’t as