Sunday, August 1, 2010

Sixtynine'r rising............






The chain stays came together and now the jig is up...........one HUGE consideration to keep in mind is the larger wheel up front requires that the head tube position is set up so that the front axle is 1.5" higher than the back axle.......I want to maintain a BB drop of 44mm so all this has to be set up correctly.......at least the bike will be full rigid, so I don't have to consider "sag". The SS will be (wishbone) "mono-stay" design with a sleve on the ST where the TT and SS come together.
A point to ponder..........when considering the BB drop, an imaginary line is drawn from one axle to the next. In the case of a bike with two different sized wheels this horizontal line does not go frome axle to axle rather it runs somewhere between these two points and THAT is where the BB drop should be calculted from.

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