A couple of hours will do the balance, turning, braking, shifting elements. Riding responsibly, however, is something entireley different; attempted by few and mastered by even less.
it depends on your balance
it obviously depends how fast you can ride a bike and how long you can go without stopping
If you're asking if it's difficult to ride a bicycle the answer is yes. It does take quite an effort to learn how to ride them.
It cannot be done. To ride a bike around the earth, the continents would need to be connected, or the bike would need a really long bridge across the ocean.
Most cases, no. However some people with AS are clumsy and so riding a bike might take awhile to learn.
Here is a sentence with the Adverb gradually: The boy gradually learned to ride his bike. Here is a sentence in which I have changed the Adverb gradually to an Adjective: The gradual boy took a long time to learn how to ride his bike. Basically, all you need to do was take of the ending -ly.
I presume you mean how long will it take for a 12 miles bike ride. It depends on how fast you can bike, if it's uphill or downhill. The average is between 8-13 mph for most people to bike on a 10-speed on the whole. By that measurement, it could take 50-90 minutes or so on the average.
Lassen uns rad fahren = let us take a bike ride.
The use of Continental bike tires are mainly used and made for people who ride bikes for a living or take very long bike rides and need very safe and reliable tires to ride on.
It would take 23 days... or at least thats how long it took me.
20 minutes.
You can in San Andreas