Just left Evan's in clapham. Olly really did me well.listened to all my questions. Found me the perfect crank for my Norco fluid 2.both Mark's were very helpful. The bike mechanic with the righteous green fat bike is a true genius with a wrench. These dudes know there stuff. They live and breath cycles. Always willing to take the time to sort out any issues you have with your bike.this store rocks.you get real American style customer service. Great staff.top notch mechanic. If I ever need anything for my mountain bike I go to the pros at clapham junction Evan's. G king