Stridsland 104 BCD Chainring104bcd 4 bolt narrow wide chainring for converting your super cool retro mtb cranks into a 1x setup. Usually gives a decent chainline if mounted on the middle chainring position of a triple crankset 110mm bottom bracket is a good starting point, but 107 or 113 may be best depending on cranks and chain stay clearance Non directional works in both directions 7 12s compatible Singlespeed compatible too Made in Poland Please note: The anodised colours may