Thanks for the heads up andy I am running a set of Pace RC36 forks, any idea on what size extender I would require? I'm not being lazy I'm still on a learning curve when it comes to kit. Also I take on board your comments re: a higher rise stem are there any down sides to going down this route?
Mark - I'm by no means a Pace fork expert, but I would imagine that you have a 1 1/8th steerer on yours, as you have a threadless headset.
Some people report that those BBB steerer extenders are too large a diameter to fit inside some aluminium steerer tubes, but never having used them myself don't take this as gospel.
What sort of rise is the stem that you currently have fitted, and do you have flat bars at the minute?
I'd think that you could easily get 50mm of extra bar height using a stem with more rise and some low riser bars without too much compromise on handling or looks.