recommondations for frame size

Bike sizes are determined by the frame size, based on the length of the seat tube. We measure from the centre of the crank axle (bottom bracket) to the top of the seat tube, where the seat post is inserted, in centimeters (1 inch = 2.54cm). Stand over height is the clearance between the top of the top tube and the bottom of your crotch. It’s important that you have adequate clearance in this area to avoid contact when you’re stopped and astride the bike, especially in an emergancy. For road and hybrid bikes > 2 cm (1 or 2 fingers) of clearance is required, mountain bikes require a width of a hand (or As most frames have sloping top tubes and/or suspension seat posts, the frame size is actually lower than you might remember from your old "10-speed". To compensate today's frames have longer top tubes. The sizes we recommend in our sizing charts take stand over height into consideration. Our SUMO range of XXL-Heavy Duty bikes have a much longer head tube than regular bikes so that even the 70cm frame slopes down to the seat post. To avoid hitting the top tube a SUMO rider uses a slightly lower frame size than most comparison tables recommend.

rider height instep (c.) frame size
160cm 65cm 38cm MTB SUMO
166cm 71cm 44cm
170cm 75cm 48cm 38cm 40cm
174cm 79cm 52cm 42cm
178cm 83cm 56cm 46cm 50cm
182cm 87cm 60cm 50cm
190cm 93cm 66cm 56cm 60cm
>205cm >97cm 60cm 70cm

errors reserved!

suspension frames:

The longer travel a suspension fork or rear shock has, the higher the crankset needs to be so that the pedals will not hit the ground. This is why full suspension bikes are not popular with City or Trekking bikers, as most riders like to able to touch the ground with their toes while stopping at a red light.


frame size chart

Here, you can find frequently asked questions. If we did not yet answer your question yet, please feel free to send us an e-mail:

Contact us

Your Schauff team

Back to top