HEADSET 1-1/8 IS 42/28.6 - IS/42/30 45D/45D BLK CURBDOG

Standard used on many modern BMX frames and some road frames Works on forks with integrated 45¡ IS crown race 1-1/8 Italian IS standard, 41.8mm(IS41) Strong sealed cartridge bearings Angular contact Anodized aluminum bearing seats and top cap 12mm top cap