Bike buying advice matters when you need more than a generic size chart or a quick sales opinion. If you are comparing models, sizes or frame platforms, the real question is not just which number looks right. It is which option gives you the cleanest path to a position that will actually work later.
This page is the pre-purchase entry point. The canonical service behind that decision is Custom Bike Sizing.
Why bike purchases go wrong so often
Many bikes look close enough on paper and still create avoidable compromises later in reach, front end, cockpit setup or crank choice. Two bikes in the same labelled size can behave very differently once the rider and the target position are taken seriously.
The most common mistake is choosing a size based only on height or trying a bike briefly in a shop, then discovering months later that the geometry does not match how you actually ride. Frames worth several thousand euros can end up with the wrong reach, the wrong stack or a cockpit that forces workarounds from the first ride.
That is where this page helps. It gives you the decision logic before the purchase and then moves you into the right sizing service.
-
frame size gets estimated only from height
-
geometry and target riding position are not judged together
-
stem length, handlebar width and crank choice are questioned too late
-
several models are compared without one stable reference point
Where this page should lead you
If you need a real decision between specific bikes, sizes or frame platforms, Custom Bike Sizing is the canonical service. This page should not compete with it. It should get you there cleanly.
In a Custom Bike Sizing session, I work through your position on an adjustable fit bike and use that to evaluate specific models you are considering. Up to four bikes can be assessed and confirmed against the same target position in a single session. You leave with a document of your fit coordinates and specific model recommendations in writing.
If you buy and then want the final setup dialled in on the actual bike, a follow-up fitting is available to close the gap between the fit-bike position and your new purchase.
If you already own the bike and your problem is discomfort or instability on the current setup, the better route is Bike Fitting instead.
