Micro Bird teamed up with Roush CleanTech in 2012 to offer cleaner buses with simplified emissions system and proven performance. The MB-II propane model is equipped with ROUSH CleanTech’s Gen5 propane fuel system, which integrates the original motor. The engine benefits from all manufacturer performance and quality characteristics, such as horsepower, torque and towing, while maintaining the outstanding OEM factory warranty. The propane MBII is the best choice if you want a greener bus that can carry up to 20 passengers. Its oval shape increases the comfort of the passengers compared to the competitor’s buses.