Thanks jimc101, that definitely helps! The original forks (Fox 32 F100RL, 100 - 130mm adjustable travel) had a lockout but no lock out threshold which I think means that the lockout hight would vary depending on how you adjusted the travel. I think I'm after a low front end and as we're only talking about 3cm (1cm for the rigids) I think I'll go for the 44.5cm unless anyone can think of a huge problem? By the way is the rake unimportant?