well just done 2 today 06 and 2001 20 mins on the pointy 15 on the 2001, chain, F+R sprockets, cleaned all affected areas and wheel, all sorted. guess it comes down to the pace of the fitter
even if it took 35 mins still dos not justify cost of £85 fitting... if they tryed would say they want £170 + an hour fitting lol thats just taking the *^&$

....
I would say if its somthing you want to learn then go for it, every penny that stays in your pocket cant be all bad :P