Hello! I am a professional mountain biker and I do tune ups on the go for side work! I grew up mountain biking and I love them! I do tune ups for both normal MTBs / Road Bikes and also Electric Bikes ( eBikes ). I go directly to you. I will travel 100 miles from Bangor. Give me a call to get a price. Leave a message if I do not answer right away. I will get back to you! Have a great day!