After all, your saddle is still the third contact point in this bike fit equation. It’s worth looking at top tube length and seat tube angles, to get an idea of how the bike will feel when seated. Reach doesn’t tell the whole story though. If your trails are mostly tight and twisty and you like to pop off every lip and root, then a frame with less reach will feel more agile. But if you mostly ride steep, fast trails then a frame with more reach will help keep things calm and controlled. Most riders will be looking to strike a balance between confidence inspiring stability and sharp handling, which is what our size recommendations are based on. Less reach equals a shorter bike, one that is easier to throw about. More reach equals a longer bike, which, in turn, is more stable. Reach can be used to help influence the feel of the bike. Got arms like a T-Rex? Then you might prefer less reach.Ī frame is not a t-shirt though and there are factors to consider other than the size of your body parts, such as the trails you like to ride and your riding style. In general, the taller you are the more reach you need, but if you have longer than average arms or torso for your height then you might find a frame with more reach works better for you.
Of the two, reach is the more important variable when choosing a frame size as it gives an indication of how much space you have to move within the limits of the bike. Reach and stack measurements are far more useful figures for mountain bike frame sizing than seat tube length, as they help describe the relationship between your pedals and grips, your key contact points when riding dynamically. By using a short seat tube and a long travel dropper post across the size range we can achieve both these things, whatever length your legs are. Correct saddle height is important for pedaling efficiency and comfort but just as important is the ability to get the saddle as low as possible for more confidence on downhill and technical sections. Seat tube length is an outdated method of working out what size frame you need so let’s get it out of the way - literally. We’d always advise doing as much research as possible, with that, here are some points to consider.
This frame size guide is just that, a guide.
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