 If you liked
Venus Senki
|
 ...then you might like
Freedom
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While almost 20 years apart in creation, both feature space colonization plotlines, and high production values, young people (mentored/taken in by an older male) on tri/mono/motorcycles who get embroiled with opposing factions in some sort of larger scale conflict. There are also aspects of political critique that emphasizes the differences in 'freedom' on the colony and the Earth.