Hello

I'm looking to upgrade components on my 2011 Trek FX 7.3 disc. I'm still using the original components (below) except for the front derailleur which I swapped like-for-like. I have done approximately 1000 miles in 18 months and definitely need to change the drive train as next year I'm planning rides that will take me nearer to 3000 miles over the year so I'll need to swap for components that can hack this extra mileage.

I'm really happy with my mechanical discs and don't want the faff of maintenance of hydraulics so I have no intention of changing the brakes at all. If I can keep the current brake levers and shifters then all the better as I'd prefer to spend my money on better derailleur set ups but, if I need to change shifters and levers for compatibility, then so be it - but I don't want to change the brakes as I know my way around them and I don't want to escalate the cost. My budget is £200-£250.

Thanks in advance

Current setup

Shifters Shimano EF60, 8-speed trigger
Front derailleur Shimano M191
Rear derailleur Shimano Deore
Crank Shimano M361, 48/38/28 w/chainguard
Cassette SRAM PG-830 11-32, 8 speed
Brakeset Shimano M416 mechanical disc brakes w/Shimano EF60 levers