(according to Jan Heine, who knows his stuff) the straddle cable has to be at a 90º angle with the straight line between the pivot and straddle mount on the canti.
How so? If the straddle hanger was dropped down to around the level of the headset and the slack on the straddle cable taken up you'd be close to 90° wouldn't you?
(according to Jan Heine, who knows his stuff) the straddle cable has to be at a 90º angle with the straight line between the pivot and straddle mount on the canti.
Which is impossible on the above setup..