As far as I know - I am using the RockShox Dart 2 - only this model has a lockout option. more precisely the Dart 2 has a lockout option directly on the fork during the dart 1 hasn't any option. The Dart 3 has the lockout on the handlebar.
But I can promise you: not even the lockout button does its job perfectly: Nevertheless my Dart 2 goes approximately 4mm down although I locked out my fork.
Last edited by diggi; 08-14-07 at 02:52 AM.