Originally Posted by
fietsbob
want lots of gears?
dual drive rear hub + a triple crank .. cube numbers
10x3x3= 90 .. 6x3x3=54; 7~ 63; 8~ 72; 9~ 81
a 4x3x3=36
in '62 I made my S-A AW3, cubed .. 3x3x3 a 27speed ..
Built up a chromed DG Cruiser in 1984 with a Sturmey Archer 5 speed internal, Atom 3 speed cluster and a triple on a forged steel crank. Sitting in my shed waiting to be taken out again.