I am a frame builder AMA

You are reading a single comment by @PhilDAS and its replies. Click here to read the full conversation.

•

Tijs

What's the best way to figure out the right AC for a forkless frame with no geo chart available, given that you have decided on the rake?

•

PhilDAS in reply to @Tijs

If you know the BB drop, you could draw or plum line from the rear dropouts to the front axle fairly accurately. If you know the rake too then you should be able to draw a line through the headtube to the line that intersects the axles, add the rake and measure the axle to crown that way after accounting for headset stack.

•

Tijs in reply to @PhilDAS

Sounds good; gonna try that. Thanks! Edit: Hm, you need a bit more info right? For example HA and where it is in space. Or do you mean do this in real life?

@M_V: Bb drop, pretty sure. SA, less sure. Yes, level top tube.

About

Avatar for PhilDAS @PhilDAS started