HM Comp SE Exotec handcrafted German bicycle Frame ALU 6061 | eBay
Nicolai Bikes - ✖️ 7020-T6 Aluminium Aluminium is not just Aluminium! We at NICOLAI exclusively use the alloy 7020-T6 (AlZn4,5Mg1) for our frames. Compared to our competitors, who mostly use aluminium 6061-T6 (