Topic starter
Can someone please explain this to me as I'm struggling with the bb drop aspect. What does it mean and how is it measured?
Full page with spec. [url= http://sanderson-cycles.com/content/sanderson-life ]HERE[/url]
Frame Geometry
Fork lgth Head angle BB Drop
440mm 71 degree 25mm
460mm 70 degree 17.5mm
480mm 69 degree 10.5mm
500mm 68 degree 3.5mm
Posted : 06/06/2012 2:56 pm
It's the BB height measured from the dropouts, makes more sense on frame only geometry tables as obviously 1" tyres are going to lower the BB by 2" compared to 3" tyres (in an extreme case).
So assuming a 13" wheel radius (about a 2" tyre), -25mm BB drop would be a 12" bb height.
Posted : 06/06/2012 3:02 pm
Topic starter
Cheers. Obvious when you think about it 😳
Posted : 06/06/2012 3:08 pm