Road Bikes

I have a few road bikes in a row. I am excited about all of them.

First one is a "weekend warrior" style bike. It is a bike that is hopefully going to be zippier and lighter than Brian's light tour/commuter bike. He wants this bike for the weekend rides when he is not loaded down. Carbon fork, fast back styling and fully TIG welded. Super straight forward bike with an exact purpose. I like that.

Here is Brian's bike after tacking and an alignment check. Next I add more tacks and weld it in the correct sequence.

inspection before welding.

seat tube twist check

.001" error. Not bad.

Wheel check:

Brian's bike with a wheel check

Next bike is Jeff's bike which is a fillet brazed classic lined road bike.

Have a great holiday weekend.

Cheers,
Drew

Comments

alignment

Submitted by sminch on Sun, 04/04/2010 - 7:27pm.

Drew,

What is the purpose of mounting the frame on the alignment table by the head tube as opposed to the BB shell? I no you are checking for twist but that's about all I know of what you are doing.

Thanks, Wil

Datum

Submitted by drew on Sun, 04/04/2010 - 8:16pm.

The datum used for inspection is not the point. You can use anything and still check everything. The BB is a very hard piece of the frame to trust for inspection until it has been faced again (and even then it needs to be PERFECT which is not easy). I check centerline, axle faces, BB perpendicularity, and many other things all with the headtube datum. I find it far more accurate.

-Drew