Every bike should have an adjustable head angle (1.5 degrees) with the 52mm FSA press cups or similar. With the steepest setting being the designers optimum. Seat angle should also be optimised at this setting.
Every bike should have size specific rear centre or even better the option of +/- 30mm (in 10mm increments) when they ordering.
Every bike's reach should be sized with a 50mm stem to allow shorter torsoed riders to run 30mm and long torsoed guys to run 60mm.
Every AM bike should have 165mm cranks and only large/XL trail bikes should get 170mm.
29" bikes should have the same head angles as 650b.
And if you can't fit a bottle cage on a trail/AM bike it should be thrown into a volcano.
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