More power

[Daantjiedonner]

Kan julle slim ouens my asb, raad gee. Ek wil die meeste krag kan gee met die minste energie gebruik.

Hoekom gebruik ek nie n langer krankarm nie?

[SwissVan]

Kan julle slim ouens my asb' date=' raad gee. Ek wil die meeste krag kan gee met die minste energie gebruik.

Hoekom gebruik ek nie n langer krankarm nie?

[/quote']

 

 

Probably because it's easier to change to a higher gear and similarly could would could hurt your knee's.

 

Haiti? Dont you rather want a long(er) board?

 

 

[Daantjiedonner]

I have a longer board and it works a lot better. Thanks for your reply!

[SwissVan]

I have a longer board and it works a lot better. Thanks for your reply!

 

 

Hell I don?t know the answer, there must be a really good reason otherwise the pro?s would be riding bikes with the BB?s a few inches higher than us normal types?.

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Suppose it depends a lot on what kind of riding you want to do (track, road, crits, mtb), your riding style and level of fitness.

Some possible problems with longer cranks?..:

1. Cornering and ground clearance, a few mm makes a difference and you may find your pedals hit the ground more often.

2. Knee?s take more strain as they could need to bend more at ?Top Dead Centre?, depending on how high / low you set your seat height.

3. Clearance between your torso and leg at TDC could be an issue, especially if you have your bars set very low compared to your saddle.

4. Adds more weight?.

 

Feel free to add / subtract from the list...julle slim mense.

 

 

 

 

 

[Goodbadugly]

Ek sukkel om die vraag te verstaan, maar probeer "energy saver" gloeilampe.

 

Goodbadugly2009-04-27 12:28:25

[Daantjiedonner]

Met meeste krag  bedoel ek meeste krag in my bene met die minste swaarkry of sweet,sal n langer krankarm my nie makliker laat trap nie?

Ek sal in elkgeval die energy saver n try gee! Thanks

[Underachiever]

Met meeste krag  bedoel ek meeste krag in my bene met die minste swaarkry of sweet' date='sal n langer krankarm my nie makliker laat trap nie?

Ek sal in elkgeval die energy saver n try gee! Thanks

[/quote']

 

Probeer oefen

[FanieFiets]

ek weet nie, maar 'n langer crank maak sin. Natuurlik tot die mate wat 'n persoon stress op kniee sit en waar dit actually ongemaklik is.  Daar nie 'n tegniese ou wat kan help nie? 

[Bos]

Reg soos ek dit verstaan... As n voorwerp in n wentelbaan om n sekere punt beweeg sal die voorwerp n hoeer snelheid om die "as" hanthaaf hoe verder weg van die sentrale "as" hy beweeg, reg?

 

so.. vir wat mag voel soos dieselfde "cadence" spoed (wat n limiet het omdat ons menslikke ligaame net n cadence van bv 95 gemaklik kan hanteer)  mag jy dalk stadigger beweeg as van tevore..verstaan jy my..? In ander woorde al wat jy gaan doen is jou fiets "afrat" sodat jy as geheel laer spoed gan beryk en kleiner padratte moet kry sodat jy dieselfde spoed kan ry as die res.

 

Jou krag sal dieselfde bly omdat jou ratte se verhouding anders gaan wees vir dieselfde inset. M.A.W omdat jy stadigger "cadence" het en jou Direkte Leverage meer is, gan jy n laer rat moet gebruik(kleiner sprocket) so jy kanseleer weer jou leverage uit..

 

Maak ek sence of deurmekaar? of is ek deurmekaar?

 

Selfde beginsel.. as jy In die "oumarat"/ granny ry maar op jou "casette" in n klein rat, het jy meer krag as wat jy in die "Groot lem" ry maar op jou "cassette" in jou grootste rat ry?

 

Nope..

 

Ekt laas met die Ouderling so mooi afrikaans gepraat

BOS10002009-04-28 02:22:55

[Gumpole]

cant speak in Afrikaans, I'm afraid...

 

but it is physically impossible to increase power without increasing energy expenditure.

 

1. get a cranklength that suits your length/ leg length/

 

2. ride at a cadence that suits you

 

 

 

 

 

[FanieFiets]

 

Reg soos ek dit verstaan... As n voorwerp in n wentelbaan om n sekere punt beweeg sal die voorwerp n hoeer snelheid om die "as" hanthaaf hoe verder weg van die sentrale "as" hy beweeg' date=' reg?

 

so.. vir wat mag voel soos dieselfde "cadence" spoed (wat n limiet het omdat ons menslikke ligaame net n cadence van bv 95 gemaklik kan hanteer)  mag jy dalk stadigger beweeg as van tevore..verstaan jy my..?

[/quote']

 

Nice verduideliking, het vergeet van die cadence.

 

[2 X 2]

Does'nt more leverage (longer crank arm), mean that the workload becomes easier?  In other words, the longer your crank arm (if your leg lenght allows it), makes it easier for you to move the bicycle forward

[fandacious]

Its simple.

 

get a power meter

 

measure your power with current setup

 

get longer cranks

 

measure power again.

 

tell us if you can push 7w/kg yet

[AndreZA]

get Biopase chainrings.

[Climate]

With a longer crank, your foot will be moving faster than with a shorter crank at the same cadence. That is why the pressure on the pedal can be reduced ... because you are moving it physically further over the same period of time. Also remember, that with increased crank length, your knee has to bend more at the top of the stroke (assuming you adjust your saddle for your knee angle to be the same at the bottom of the stroke, before you made the change). So the impact of adjusting crank length is effectively double what the length difference is (ie. that difference at the top of the stroke, plus that difference at the bottom of the stroke).

[ASTANA]

Steriods - geen crankarm verlenging nodig nie