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Forum: General Cycling Discussion

01-14-11, 06:46 PM

Replies: 35

Lighter but not faster

Views: 1,611

Posted By jshort2010

So I've learned. but some of the replies were...

So I've learned. but some of the replies were okay.

Forum: General Cycling Discussion

01-14-11, 06:40 PM

Replies: 34

Highest Cadence

Views: 6,377

Posted By jshort2010

Why do they spin on those rollers? Does it raise...

Why do they spin on those rollers? Does it raise they're rpm?

Forum: General Cycling Discussion

01-12-11, 11:38 AM

Replies: 35

Lighter but not faster

Views: 1,611

Posted By jshort2010

I went around 32 km / h for 10 minutes on the...

I went around 32 km / h for 10 minutes on the lower recorded weight.

I believe I did lose muscle/fitness. On the plus, at least I lost some fat too :).

Forum: General Cycling Discussion

01-12-11, 11:04 AM

Replies: 34

Highest Cadence

Views: 6,377

Posted By jshort2010

Reading through the replies hear, this thread is...

Reading through the replies hear, this thread is pretty educational.

I'm a newb to cycling, but given the amazing fact the guys like Chris Hoy can achieve wattage of over 2000, and I can't even...

Forum: General Cycling Discussion

01-12-11, 10:50 AM

Replies: 35

Lighter but not faster

Views: 1,611

Posted By jshort2010

Not to knock on the majority of the much...

Not to knock on the majority of the much appreciated replies, but this time I inputed a false weight into the bike computer (I inputed 110 lbs, whereas last time I inputed my real weight of 180 lbs)....

Forum: General Cycling Discussion

01-10-11, 12:28 AM

Replies: 13

Ground speed vs Air speed

Views: 1,526

Posted By jshort2010

I see where I made the mistake here. On level...

I see where I made the mistake here. On level terrain s = 0 not 1.

Thus we have

P = 9.8 * 83 * 8 * 0.0053 = 34.5 watts.

That sounds a little low even with a 8 m / s ( ie 18 mph) tailwind.

Forum: General Cycling Discussion

01-10-11, 12:05 AM

Replies: 13

Ground speed vs Air speed

Views: 1,526

Posted By jshort2010

No I copied it correctly. Unless whoever wrote...

No I copied it correctly. Unless whoever wrote the wiki entry got it wrong.

Forum: General Cycling Discussion

01-10-11, 12:01 AM

Replies: 35

Lighter but not faster

Views: 1,611

Posted By jshort2010

The next time I go to the gym I'll input a...

The next time I go to the gym I'll input a different weight and see if that effects the numbers for distance/calories on the screen.

The stationary bike I use is a TRUE CS8.0. I have a speed bike...

Forum: General Cycling Discussion

01-09-11, 11:55 PM

Replies: 13

Ground speed vs Air speed

Views: 1,526

Posted By jshort2010

Suppose V_a is the cyclists ground speed with...

Suppose V_a is the cyclists ground speed with respect to the wind. If we have a tail wind of 8 m/s (so 18 mph approx) and your going with the wind, then V_a = 0 if you are also moving 8m/s.

Thus P...

Forum: General Cycling Discussion

01-09-11, 11:11 PM

Replies: 13

Ground speed vs Air speed

Views: 1,526

Posted By jshort2010

Ground speed vs Air speed

There is formula for on wiki article "Bicycle performance" known as

P = g * m * V_g * (K_1 + s) + K_2 * (V_a)^2 * V_g

P - Power in watts
g - gravity
m - mass of the rider plus bike
s -...

Forum: General Cycling Discussion

01-09-11, 10:46 PM

Replies: 35

Lighter but not faster

Views: 1,611

Posted By jshort2010

Except this stationary bike asks you to input...

Except this stationary bike asks you to input your weight. Obviously its using this to calculate things like distance,speed, calories burned.

Forum: General Cycling Discussion

01-09-11, 10:39 PM

Replies: 35

Lighter but not faster

Views: 1,611

Posted By jshort2010

This doesn't answer my question. I'm asking WHY? ...

This doesn't answer my question. I'm asking WHY?

btw, two cyclists of equal fitness would not have the same abilities if one was 150 lbs and the other 250 lbs. The latter has to carry an extra 100...

Forum: General Cycling Discussion

01-09-11, 09:46 PM

Replies: 35

Lighter but not faster

Views: 1,611

Posted By jshort2010

I'm a little confused by some of the replies....

I'm a little confused by some of the replies. People spend thousands of dollars just so they can buy light bikes that have super-light carbon frames etc...If weight is so crucial to performance than...

Forum: General Cycling Discussion

01-09-11, 01:33 PM

Replies: 35

Lighter but not faster

Views: 1,611

Posted By jshort2010

Lighter but not faster

I'm not an experienced cyclist but I have trained hard on the a stationary trainer a few times.

In September I was able to cycle about 12 km in 30 minutes. Throughout the fall I went on a calorie...

Forum: General Cycling Discussion

01-09-11, 01:27 PM

Replies: 34

Highest Cadence

Views: 6,377

Posted By jshort2010

Earlier today I tried again and got to 145 but...

Earlier today I tried again and got to 145 but couldn't go higher because the trainer would shut off beyond that rpm :(.

fietsbob....

Whats wrong with getting your HR up? At least your legs...

Forum: General Cycling Discussion

01-09-11, 04:47 AM

Replies: 34

Highest Cadence

Views: 6,377

Posted By jshort2010

Highest Cadence

What's the highest cadence YOU can achieve on a low gear? I've maintained 120 rpm on a stationary bike, but maybe can go higher.

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