what r splined cranks?

[genesis4]

i have heard of it, but dont know what it means.:confused:

[Catboy]

i have heard of it, but dont know what it means.:confused:
read:

http://en.wikipedia.org/wiki/Crankarm#Attachments

http://en.wikipedia.org/wiki/Spline_%28device%29#The_rotating_spline_or_gearing_mechanism

[genesis4]

ok. how r the prices vs quality?

[Jerrick]

The price on splined cranks aren't too bad, but are still a little pricey.

They are so worth it though, the strength and durability you get from a splined hub/crankset will pay for itself again and again and again.

EDIT: 8k post. Go me. lol

[Unicaw89]

Man I remember when I asked this way back in the day :) Wel its a diferent design =p. Well there are Cotterless cranks cottered cranks, and Splined cranks. Cotterless is the most common, and the strongest is Splined(we wont go into the evil known as cottered). Cotterelss cranks have one bolt that screws into the square tappered hub. A splined crank bolts on the same way but sometimes has a bolt on the side to close the crank on even more.... Here are some pics m8..

Here are your regular cranks

http://www.unicycle.com/images/catalog/hardware/crankarmcottered/chromeplated.jpg

here are splined cranks

http://www.unicycle.com/images/catalog/hardware/crankarmsplined/QuAxCranksSplined2.jpg

If you notice the part that bolts to the hub, cotterles just looks square and splined has ridges that give a more snug and supportive fit...