For a new rider specifically, the motorcycle-buying decision comes after a couple of legal and practical steps, not before them.
Licensing comes before the bike
Most places require a specific motorcycle license endorsement, separate from a standard driver's license, often requiring a written test and a road skills test, or completion of an approved safety course that can sometimes waive the road test. Checking the specific licensing requirements and process in your area before buying is worth doing first, since it can affect timeline and, in some places, what size or type of motorcycle a learner's permit allows riding in the meantime.
Engine size isn't the first decision for a new rider
Larger engine displacement generally means more power and speed, but for a genuinely new rider, a smaller, more manageable engine is usually the more sensible starting point, regardless of eventual riding ambitions — a bike that's easy to control and forgiving of a beginner's inevitable mistakes matters more early on than raw power that a novice isn't yet equipped to handle safely. Many riders start on a smaller-displacement bike and move to something larger after building real skill and experience, rather than starting on a powerful bike immediately.
Weight and seat height affect control more than most new riders expect
A motorcycle that's too heavy or too tall for a rider's height and strength is harder to control at low speed and more difficult to catch if it starts to tip — a genuine safety factor, not just a comfort preference. Being able to comfortably flat-foot or at least get solid balance with both feet at a stop is an important practical check, and it's worth sitting on a specific model in person before buying, since seat height and weight distribution vary meaningfully between models even within similar engine size categories.
Used motorcycles need the same scrutiny as used cars, plus more
Beyond the general used-vehicle checks (title status, mileage, maintenance history), motorcycles have their own specific wear points worth checking — chain and sprocket wear, tire condition and age, fork seals for leaks, and evidence of a prior crash or drop (scuffed bar ends, mismatched paint, or bent components). A pre-purchase inspection by a mechanic familiar with motorcycles specifically, not just a general vehicle mechanic, is worth the cost for a meaningful used purchase.
The one thing people forget
Budget for real protective gear — a proper helmet, jacket, gloves, and appropriate footwear — as part of the actual cost of getting into motorcycling, not an optional add-on purchased later if there's money left over. Motorcycle riding carries meaningfully higher injury risk than car travel for the same distance traveled, and proper gear is a significant, non-optional part of managing that risk, not a style choice to skip to save money upfront.