The Ultimate Guide to 해외스포츠중계
https://www.evernote.com/shard/s578/sh/b7ee1b81-d117-222d-da31-c9fab969ed2c/16c058727595ca1880bdd652487b3efe
Any racer is likely to let you know that there is effectiveness, and then there is General performance. Optimum effectiveness is the end goal, In particular from super pocket bikes.