The fly bikes matt roe top load stem is a 6061 t6 aluminum stem with 50mm reach 29mm stack height and either 33mm rise when run upright or 4mm drop when run inverted it uses 8x125mm solid bolts 4 bar clamps and 2 fork pinch the stem itself sees machined sides and clamping area along with a recessed compression bolt area and chamfered edges and laser etched logos available in black or polished