Hi guys thanks for everybodys information here, I've learned a lot. I'm looking at a build, it will be my first bike build so any feedback welcome. I noticed most in here have built up with a 1x chainring, wonder if there's any reason for this or just preference? Anything wrong with going 2x? What I'm thinking below (prices AUD):

Frame   Velobuild TT023                   1433
Wheels   10Plus 60mm                   500
Groupset   Ltwoo ERX TT                   1300
Crankset   "Magene PES 515 52-36   537
Chain   KMC X12                           50
Casette   Shimano 11-30                   120
Tyres   F1 Supersport                   120
Saddle   Ryet   TT 3D                        150
Rotors   Zrace 140/160                   25
Bottom Bracket   Token 24I                   50