You are not ridding fast enough!!! Rid faster!
There have been threads on top speeds before. It is annoying reading these threads without the knowledge of miles to kilometers conversion, so I normally get out a calculator and figure out what these miles are all about.
When I’m in better shape I can average around 20km in an hour on a standard 36". My fastest speed was from letting fly near the bottom of a steep hill- Cumberland Street. I held back most of the way knowing that if I let fly there is no stopping, then when approaching the bottom of the hill I went as fast as I could to try and set a record for myself. I felt myself lurching forwards and almost lost control, going a little bit too far forwards and then backwards in the balance envelope to feel comfortable. I hit 35.4km/h briefly and I regained control as the hill flattened itself out at the bottom. I would not like to come off at high speed- landing on my feet might be difficult. I’ve fallen off at 20-25km/h plenty of times with no problems.