You don't need to be an 'investor' to invest in Singletrack: 6 days left: 95% of target - Find out more
Just browsing through Decathlons website and a few decent buys noted on there.
See below
11spd 11-40 SLX cassette £29.99.
https://www.decathlon.co.uk/slx-m7000-11x40-bike-cassette-id_8392618.html
as above but in XT flavour £39.99.
https://www.decathlon.co.uk/11-speed-deore-xt-m8000-bike-cassette-11x40-id_8392616.html
Also availble in 11-42 for the same price.
And a cheap 10spd 11-40 cassette from Microshift £24.00.
https://www.decathlon.co.uk/10s-11x40-cassette-id_8378232.html.
Some cheap Sram NX shifters and cranks available too.
I bought the NX shifter and mech the other day.
And have a n XG1150 Cassette on the way, cheapest I could find.