Helping out a mate, his dad wanted his groupset + brake replacing. Basically I did it and changed everything except for the front end, wheels, bar + stem + saddle. I did front + rear mech, cassette, chain, cranks, bb, front + rear brakes, pedals, levers + shifters. Was good fun, but i felt cheeky asking for a tenner from him. Was even more shocked to see his dad give me £20 and asked if it was enough I know that I was quicker than a bike shop (ie workload; other jobs) but is £20 still too much? My question is how much would your local bike shop charge you for a similar job. Please be realistic but dont worry about being accurate. I feel a bit guilty but it was one of them situations where you sorta cant say no lol