RESULTS: WEIGHT OFF ME VERSUS WEIGHT OF BIKE

[Bike Mob]

I would like to see the same "table" put together on a 12.61km flat route ( for interest sakes )

 

On a flat route the weight would make almost no difference.

 

Only the intertia of starting it. His fitness would only play a role, and his efficiency.

 

the GREAT thing about this TT is that it's hilly. Forget that TT's are typically flat - for this research it was imperative that it included hills.

[Minion]

Only the intertia of starting it.

It also directly affects the rolling resistance.

[Bike Mob]

On a road TT that would be miniscule and never account for minutes... but yes still a factor, you could add aerodynamics to that if you really wanted to as frontal area would also change.

 

You would also need to account for the extra drag the bag creates in turbulent airflow off his back.

Edited February 13, 2012 by Tarmac's Revenge

[NotSoBigBen]

On a road TT if the weight is carried around the 'midriff' won't that affect the ability to ride in an aerodynamic way or at least reduce efficiency?

[Wyatt Earp]

Shake the body weight and win free power in the U.K. lotto.

[reteid]

this is all way to technical too me.what i do understand however is that in the last year i have lost 12 kg and the hills are way easier now.(i am on a mtb) the same bike the same course etc.i normally look at it this way.if a buttercup weighs 250g i am now carrying 48 buttercups less uphill.no wonder cycling has become more joyfull to me.

[reteid]

i do not look at the kgs as it is difficult to envisage,but everytime i open the fridge and look at the buttercup i do the visualization.

[NotSoBigBen]

Shake the body weight and win free power in the U.K. lotto.

 

 

[Wyatt Earp]

 

 

[stratus5]

You would also need to account for the extra drag the bag creates in turbulent airflow off his back.

 

I do a lot of riding with a full rucksack (commuting) and on the flats I actually think it may have an aerodynamic advantage as it fills in the space behind you like a small fairing.

 

Its totally perceived, no science backing me up , but I am fairly sure of the effect

Edited February 13, 2012 by stratus5

[Mojoman]

this is all way to technical too me.what i do understand however is that in the last year i have lost 12 kg and the hills are way easier now.(i am on a mtb) the same bike the same course etc.i normally look at it this way.if a buttercup weighs 250g i am now carrying 48 buttercups less uphill.no wonder cycling has become more joyfull to me.

Have lost more or less the same, everytime I carry in a 10kg bag of dog food/potatoes I think about all that blubber! Another 10 or so to go....

[Shebeen]

Its a heavy mountaine bike in about the 12.5 kilogram range.

that's pretty standard really.

[reteid]

if you want to see a heavy mtb come and look at my mongoose dual sus xl.my friends refer to it as the boat anchor.

[reteid]

Have lost more or less the same, everytime I carry in a 10kg bag of dog food/potatoes I think about all that blubber! Another 10 or so to go....

also about 10-15 to go.should be there next year june if all goes well.

[manbearpig]

I was gonna try drop a quick 2-3kg before Sani but then I thought better of it. There is no way i'm hacking off half my knob.

[swoosh1973]

Tel you what CyclingJan that would be interesting to see how ity goes on a flat route for the same distane with same equipment.This Wednesday I will post an update on the above chart(not a flat route). My time is still dropping and so is my weight! Right now I am 86.8kg and still have to do the long ride for the weekend.

 

I will find a flat route one wednesday morning and lets see what the results would be on the same bike! Just not sure where to find a flat 12.61km route in KZN. Could do loops of a flat course somewhere.

Power meters or no powermeters, the point is at my max perceived effort I am making masive improvements. This week my time improved to 38 minutes 28 seconds...well over a minute again!

 

The resting heart rate is only 1 beat slower, so in my mind its not because my fitness has improved substantialy..the results have almost everything to do with weight of my body and stating that weight makes a mere 6 seconds per kg difference for the same power output as measured by a power meter is in my opinion irrelevant. My results show HUGE differences in performance improvement. All thanks to weight lost off my body for the same perceived effort.