MY "TEN SPEEDS"

 

 

 

MY "TEN SPEEDS"

 

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MY "TEN SPEEDS"  

FRAME SET PREARATION

INSPECTING A FRAME SET

FRONT FORK INSPECTION

REAR DROPS INSPECTION

STRINGING A FRAME SET

CENTERING THE STAYS

SIMPLE TEST - STRAIGHT

TEST RIDING - STRAIGHT

WORD OF CAUTION!

 

A SIMPLE TEST FOR STRAIGHT

I discovered this test quite by accident one day and I do not know for sure if it works every time.  I know that it is a really quick and safe way to start getting a feel for a frame set's geometric integrity.

The procedure is simple.  Using strings, hang the bicycle upside down, by its wheels.  It is as simple as that.

If the frame set and forks are straight, then the wheels will hang parallel to one another and in-line with the centerline of the bicycle.  If anything is bent, the front wheel will cock one way or the other.  If the wheel does tilt, adjust the bike by lifting it and allowing it to settle into the hang.  Repeat this several time just to be sure.

The strings hanging the bicycle must be single strand, between hook and wheel.  You are trying to ensure that string twist will not effect the situation.  Also ensure that the string meets the wheel in the center of the tire/rim, again to ensure that the string is not the culprit that is causing a mis-reading.

I do not know if this is an acceptable test or not.  It has worked for me every time that I have tried it.  Generally, if I hang a bike and it hangs straight, it will ride straight when I take it out for a spin.

NEXT - TEST RIDING FOR STRAIGHT

 

 

 

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