Crank Length

[Avalance]

What is the standard size of a crank arm, 175?

How do you measure for the length??

 

Have no idea.....

 

Thanks

[spano]

it depends,, most of them differ between 170 - 175,,

 

dont thinks there is really a "standard" on the roadbikes you seem to get 172.5 the most,, but I could be mistaken??? (ask JB)

 

you measure from the center (bb) to the center of the pedal axle.. hope this is correct and it helps!

[Avalance]

thanks spano,

Going to buy another crankset and just wanted to get the same size i have now...

[Daxiet]

I think on MTB expect perhaps Smalls the std. is 175mm, the measurement normally is located just above or below the pedal shaft on the inside of the crank (Shimano at least).

 

[Slave]

On this subject, one of the group that I ride with on Saturdays asked me what crank length I have. They are 175 mm and he said that with my height I should be running 180 mm cranks.

 

This true?

 

Logically, if I run longer cranks, my legs have further to travel for each revolution and although I will get more power, I will have a speed problem, so this makes no sence to me.

 

Anyone have any ideas?

[Johan Bornman]

The year is only 8 days old and already we've had our first crank length posting. This is going to be a great year, I can feel it in my BB.

 

Don't be so lazy. Do a search on this topic. One tip, search for Crank  ARM length. People seem to like the duplicity of crank and arm, which translates to arm arm.

[Contaminated Haggis]

Can you throw a ball with your left crank !!  

[Willehond]

The year is only 8 days old and already we've had our first crank length posting. This is going to be a great year' date=' I can feel it in my BB.

 

Don't be so lazy. Do a search on this topic. One tip, search for Crank  ARM length. People seem to like the duplicity of crank and arm, which translates to arm arm.

[/quote']

 

Someone woke up double cranky this morning...

[Speed Devil]

The year is only 8 days old and already we've had our first crank length posting. This is going to be a great year' date=' I can feel it in my BB.

 

Don't be so lazy. Do a search on this topic. One tip, search for Crank  ARM length. People seem to like the duplicity of crank and arm, which translates to arm arm.

[/quote']

 

Someone woke up double cranky this morning...

 

I think he sleeps on a double bed and got out on the wrong side this morning

[Johan Bornman]

Ok you two. You'll be happy to know that I took some caster oil this morning and now I feel much better. Still think crankarm is silly though.

 

 

[Comebackboy]

It is a crank arm leg ok!!!! Must get your facts straight!!!

[Willehond]

In bicycle terms I think they have to refer to cranks as crank arms to avoid confusion with the stupid term "crankset" (which isn't a set of cranks at all but an assembly that includes cranks, or arms amongst other components), when someone says "cranks".

[Johan Bornman]

In bicycle terms I think they have to refer to cranks as crank arms to avoid confusion with the stupid term "crankset" (which isn't a set of cranks at all but an assembly that includes cranks' date=' or arms amongst other components), when someone says "cranks".[/quote']

 

The bike industry is fantastic at inventing confusing terms as can be seen with drive side, non-drive side, crankset and crankarms. Then we have wheelset and who knows what else.

 

What's wrong with right and left? And with cranks (for crankset) and left crank and right crank (for left crankarm and right crankarm.) Also, wheels seem to work well for a car but when they're on a bicycle they be come "Wheelset."

 

Now the industry is inventing stupid terms to undo its stupid  base terminology. 

 

Where's my castor oil?

 

 

 

[Slave]

You see groucho, I would never have thought to do a search on crank arms since I ride the bike with my legs and the crank arms are attached to the pedal which are opperated by feet. Sounds like you need more than just castor oil. Maybe a new cankset.

 

Please forgive me for being foncused. It tends to be a permanent state with me.

 

I'll get my hat and leave now.