Miche primato advanced track chainseta stiff one piece forged alloy silver chainset that is lightweight brush polished and anodised makes the miche primato advanced track chainset unbeatable value for money features arm material al 6082 t6 forged chainring material al 7075 t6 total treatment anodised bcd 144mm bottom bracket compatibility primato 107mm jis 36x24 tpi 1 370x24 tpi use tracksingle speed weight 600g44t 165mm wo bbbuymiche componentsfrom chain reaction cycles the wo