FSA Afterburner Stem 31.8mm Clamp Diameter 90mm Length ±12° Angle MTB Use – Alloy MFPN=00.5318.005.009 post liquid heat-treated 4130 crmo

post liquid heat-treated 4130 crmo STEM ECLAT "BURNS" topload stem

and 100mm width BSA bottom bracket shells

hanger # 644

Non-Threaded Bottom BracketBearing seals have a very low level of drag while retaining excellent protection qualities and keep contaminants out

FSA Afterburner Stem 31.8mm Clamp Diameter 90mm Length ±12° Angle MTB Use – Alloy MFPN=00.5318.005.009 post liquid heat-treated 4130 crmoThe FSA Afterburner Stem is a robust and versatile option for mountain bikers tackling aggressive trails. Built from forged aluminum it offers a strong lightweight platform for precise steering and durability. Its trail ready design makes it a dependable choice for riders who demand control and confidence on technical terrain.