I have a bit of money (including some vouchers for a popular online shop) to spend on some upgrades to my bike. Had it a couple of years and and the compromise I made at the time when buying was to get mechanical discs to keep it to the budget.
Would either like to go for an upgrade to 105 hydraulic discs or the cheaper option is trp hy/rd.
There is a great bike shop near me where I bought the bike from and get my services from but the problem is the bike shop tends to sell at full retail prices and a lot more than I can pick up parts for online.
I'm not much of a bike mechanic so don't fancy trying to install myself. Is it OK to ask a shop about fitting parts I've sourced online and pay for the labour? Not sure what the etiquette is here.