Q. I am writing a computer program that builds a bike and I need several attributes of a bike. Just a general bicycle. I want to extend the bike class to other bikes such as mountain bikes and road bikes, etc.
Answer
What the heck is a "general bicycle"? Most bicycles made today are designed & built for one - MAYBE two specific purposes. The most "all around" type bicycle made today is a hybrid and/or comfort bike. See links for examples...
http://www.raleighusa.com/bikes/lifestyle/citypath/route-4-0-13/
http://www.raleighusa.com/bikes/lifestyle/sport-comfort/venture-4-0-13/
1st link - the attributes are...1) The 700c size tires roll faster & easier than wider & shorter tires on a mountain bike, for example. 2) The upright riding position is something anyone can handle for short trips. 3) The front suspension fork cushions bumps & potholes in the road or trail. Something a lot of newbies "think" they need - but really isn't needed for paved roads or smooth trails. IMHO - a selling point for the uninformed. 4) The wide & soft saddle (seat) is also something aimed at the newbie or recreational cyclist. The fact is - on longer trips (over say 10 miles) this type of saddle is actually terrible. 5) The wide range of gears allows for great hill climbing power. With a 32 tooth 1st gear on the rear & a 28 tooth low gear up front - just about anyone should be able to climb hills. Problem is...a lot of people don't know how to shift gears! No joke. People ask on this website almost daily, "How do the gears work on my bicycle?" 6) A wide range of frame sizes to fit most people ranging from about 5' tall up to 6' 4" tall. NOT wheel or tire size - FRAME size. 7) Adjustable seatpost length to fine tune the fit. 7) Adjustable handlebar. If the reach is too short or too far away - simply adjust the angle to compensate.
2nd link - the comfort bike. All the same except for 26 X 1.95" tires for those who prefer a wider, softer tire. Of course this will mean slower speeds & more rolling resistance.
What the heck is a "general bicycle"? Most bicycles made today are designed & built for one - MAYBE two specific purposes. The most "all around" type bicycle made today is a hybrid and/or comfort bike. See links for examples...
http://www.raleighusa.com/bikes/lifestyle/citypath/route-4-0-13/
http://www.raleighusa.com/bikes/lifestyle/sport-comfort/venture-4-0-13/
1st link - the attributes are...1) The 700c size tires roll faster & easier than wider & shorter tires on a mountain bike, for example. 2) The upright riding position is something anyone can handle for short trips. 3) The front suspension fork cushions bumps & potholes in the road or trail. Something a lot of newbies "think" they need - but really isn't needed for paved roads or smooth trails. IMHO - a selling point for the uninformed. 4) The wide & soft saddle (seat) is also something aimed at the newbie or recreational cyclist. The fact is - on longer trips (over say 10 miles) this type of saddle is actually terrible. 5) The wide range of gears allows for great hill climbing power. With a 32 tooth 1st gear on the rear & a 28 tooth low gear up front - just about anyone should be able to climb hills. Problem is...a lot of people don't know how to shift gears! No joke. People ask on this website almost daily, "How do the gears work on my bicycle?" 6) A wide range of frame sizes to fit most people ranging from about 5' tall up to 6' 4" tall. NOT wheel or tire size - FRAME size. 7) Adjustable seatpost length to fine tune the fit. 7) Adjustable handlebar. If the reach is too short or too far away - simply adjust the angle to compensate.
2nd link - the comfort bike. All the same except for 26 X 1.95" tires for those who prefer a wider, softer tire. Of course this will mean slower speeds & more rolling resistance.
Are bicycles allowed to ride on sidewalks?
starrynigh
(For example in a small community with no shoulder or bicycle lane, where is a young bicyclist suppose to ride? They are not allowed on the roads either.
after all, they are lessening pollution, but there are not enough of the benefits- dangerous cars, pedestrians, etc.)
Should more structures be available to them?
Answer
Bicycles are SUPPOSED to be a vehicle. They are meant to be used ON THE ROAD. Also, when riding a bicycle, the rider is supposed to obey all traffic laws, including speed limits. Yes, you can be given a traffic ticket on a bicycle in some jurisdictions. Bicycles should remain in the far right lane unless restricted by a directional lane at an intersection. (Left turn lane, etc.) After clearing the intersection bicyclists are to merge back to the far right lane.
Bicycles are SUPPOSED to be a vehicle. They are meant to be used ON THE ROAD. Also, when riding a bicycle, the rider is supposed to obey all traffic laws, including speed limits. Yes, you can be given a traffic ticket on a bicycle in some jurisdictions. Bicycles should remain in the far right lane unless restricted by a directional lane at an intersection. (Left turn lane, etc.) After clearing the intersection bicyclists are to merge back to the far right lane.
Powered by Yahoo! Answers
Tidak ada komentar:
Posting Komentar