Originally Posted by
pibach
The lightest as far as I know is the FSIR Spin (I bought one recently, see
here). Frame is 1,3kg. Standard config is 6.9kg. There is
this weight weenie build at 4.9kg. Single speed. There is a 3 speed option which would ad 500g approx.
hands down, the newer 14inch folding bikes with single speed will be lighter :-) but nothing beats the allure of a titanium folding bike.