You can def. make that bike meet your needs, a 400 will do well over 45, you just have to play with the gearing. For the most part any motard with an exception of the KTM Duke requires frequent oil changes and yes is a pain in the ass but you get use to it. I live in NYC and there are tons of guys ripping around town on 400's. If you can get a good deal on it I am sure you will love it once it is set up.