[robchalmers]

I'd check the ratios, some 5cog 'boxes have just as tall top gear as some 6coggers!

another thing to try is seat position - I'll probably be flamed for this - but don't sit too close tot he pedals, make sure you can safely depress the brakes but have the seat far enought back that you have to consciouly pivot you ankle to acclerate rather have the weight of your foot adn leg reating on the noisy pedal.