shyam k asked:
spinning at this optimal force and rhythm, though your bike may be climbing up or accelerating downhill.? This is what gearing does ? it amplifies your leg force differently depending on the slopes and racing conditions, so that you can keep your “cadence” at a comfortable rate ? around 60 rpm for us mortals, and around 100 rpm for racing cyclists.
Wind resistance: ?When you bicycle on level ground, what are you pedaling against?? The rolling friction on smooth ground is very low for hard-pumped tires; at racing speeds, wind is what you are fighting the most? Cycle spokes add to the drag because they whiz at twice your speed when at the top of the wheel.? This is why racing bicycles often cover the spokes with a disk cover ? but only on the rear wheel usually because crosswinds at the front can destabilize steering. Cleated Pedals:? you are pushing down with a lot of force but suddenly your foot slips off the pedal.? This is painful, and very dangerous.Most racing pedals have “cleats
Cellulite Cream
spinning at this optimal force and rhythm, though your bike may be climbing up or accelerating downhill.? This is what gearing does ? it amplifies your leg force differently depending on the slopes and racing conditions, so that you can keep your “cadence” at a comfortable rate ? around 60 rpm for us mortals, and around 100 rpm for racing cyclists.
Wind resistance: ?When you bicycle on level ground, what are you pedaling against?? The rolling friction on smooth ground is very low for hard-pumped tires; at racing speeds, wind is what you are fighting the most? Cycle spokes add to the drag because they whiz at twice your speed when at the top of the wheel.? This is why racing bicycles often cover the spokes with a disk cover ? but only on the rear wheel usually because crosswinds at the front can destabilize steering. Cleated Pedals:? you are pushing down with a lot of force but suddenly your foot slips off the pedal.? This is painful, and very dangerous.Most racing pedals have “cleats
Cellulite Cream
Myspace Friend Adder
You pretty much answered your own questions. I’ll add to a couple…
1. yes
2. yes
3. yes
4. 60 is low, a normal sport cyclist should be able to ride from 75 to 90 with some practice. 60 is OK if your effort is low – just an easy ride etc.
5. Friction of the bike itself, tires on the road and mostly wind
6. yes – same as 5 as your speed increases wind resistance increases greatly.
7. yes
8. to reduce the drag of the spokes
9. cleats keep you from splipping but another very important function is to allow you to pull up with one leg as you push with the other adding power, it’s called pedaling circles. All racer use them.