Could you provide a list of the parts you used?
P.S I see you're from Vilnius

Frame: TanTan GR201, size 52, Pantone Warm Gray 5C Gloss
Handlebar: Lexon Unox 400/500-80mm + included computer mount
Brifters: Shimano ST-R7170-R + ST-R7170-L
Derailleur: Shimano RD-M6250-SGS
Cassette: Shimano CS-M6100 12s 10-51T
Chain: Shimano CN-M8100
Bottom bracket: TOKEN BB47V29
Crank: Leese LSE-PRO, 160mm + 110BCD 4 bolt spider
Chainring: Pass Quest R110-DU 38T
Pedals: XT PD-M8100
Wheels: Easedon 33x40mm Hookless, UD Matte, TB2015(Round), Standard Weight, MS
Brake calipers: Shimano BR-R8170
Brake rotors: Galfer Wave Fixed MTB CL 160mm
Tires: Schwalbe G-One RX Pro 50mm (rear), Thunder Burts 2.1 (front)
Saddle: GOLDIX 3D
Bottle cages: HUALONG Carbon Side Load

Total weight (as pictured but without lights and Garmin): 9 kg