Currently upgrading my old steel mountain bike for commuting. I need some advice on what drive-train to go with. Current setup is 3x7. I will convert to either 1x9 or 1x10 with new rear wheel/hub. I am prepared to pay a bit extra for quality as this is my favorite bike which I enjoy riding. Prices are NZD.
Sram GX 2x10 rear derailleur $143 (Will 2x10 work with my 1x10 setup?)
Sram GX 2x10 X-Actuation trigger shifter $82
any 42 tooth chainring you recommend?
I would like a 11-42 cassette or close to that range, maybe Sunrace MX3? Is it compatible?
Shimano Deore M5120 10/11 speed rear derailleur $100
Shimano Deore M4100 11-42 cassette $89 or Shimano Deore CS-HG500 11-42 Cassette $70
Shimano Deore M5100 2x10/11 speed shifter $49
Option 3: Any Box 9 speed drivetrains, it has 11-46 or 11-50 9 speed cassette options https://boxcomponents.com/collections/prime-9-filter around $449 Long term durability? I'm not too concerned over large jumps with 9 speed 11-46/50 cassettes.
Option 4: https://www.mtbdirect.co.nz/sram-nx-eagle-dub-1x12-groupset Its a 1x12 speed groupset with an 11-50 Sram cassette. It fits 8,9,10 speed hubs. $610
Thank you for any help you can provide me, as you can see I have a few different options and am having a tough time deciding what to go with. I don't want entry level but cannot afford high end so in between is ideal. Thanks again!