Converting a 2009 Dahon MU SL to 18 speeds?
I have a 2009 MU SL, and it's all still stock. However, I've been thinking of adding a 2nd chain ring in front to convert it to 18 speeds.. Anyone know if the MU SL frame will fit a double chain ring crank or is it too narrow? If it can be fitted, suggestions for cranks, derailleur, etc..
Another idea is to convert the rear hub to a multispeed (either 2 or 3) and get 18/27 gears that way.... However, I really like the minimal spokes on the rear wheel and would be loathe to loose that just to add more gears...
Any info greatly appreciated.