Recent content by NYC2LA

CWatters, Thanx! The center stand's pivot is forward of the legs/feet, so in the event of spring failure the feet would be dragged, as opposed to being pushed. Not an indefensible position take in regards to safety but the same could be said for a single leg, side-hanging kickstand. Failure of...

I am NOT a physics major and clueless to figure out the strength of a custom spring I need to be made. I was hoping someone could help me, either with figuring it out, or turning me to someone/site that may be able to help. Here's the sitch': The spring is for a center kick-stand on a bicycle...

ok cool beans... thanx eom

excellent! yes...i am using the count of teeth...(chain driven) is there a formula? or just divide the smaller into the bigger?

okay...so my assumption... was correct, in that it's the circumference of the circle (gear) is the source for the calculation. A gear half the size of another gear would spin twice the rotations, on fifth the size, five time, etc.

Ooops...I meant 78 x .20 And to further my problem: the circumference of the wheel (with tire on it) is 78" but I have a gear that is 75" in circumference which is attached at the hub. If I need a wheel to spin five times more for every revolution of the tire do I use the 78" or the 75" in...

I would guess at 78 / .20 Is this correct?

I have a bicycle wheel (A) with a circumference of 78 inches. I want to attach a wheel (B) to it that will spin FIVE times (for each of the ONE revolutions of A). What is the circumference of wheel B? (I honestly do not know how to calculate wheel/circle rotation) thank you.