Mountainbike? You don't have any mountains in tulipland, do you?
Hey, I live in Bergen op Z.. and bergen, like in your language (bärga?) also I think, means mountains. Um, I have to climb up 'giant' hills up to 5 meters (above sea level).
Nah, those bikes rid like smooth everywhere. Off track, through forests, even in the city.. good all rides kinda bike, in my opinion.
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And yep, for an other useless facto.. Holland has indeed no mountains. Highest hill here is about 322 ms above sea level. I.e. the 'Vaalserberg' in the province called Limburg (S.E. part of Holland).