julio 25, 2026
STEM FSA AFTERBURNER 90mm +/-12d 31.8 BK3D forged and CNC machined 6061-T6 alloy construction for a balance of strength and weight. 4 bolt cold forged clamp face. 40mm stack height. 144g (100mm version). Item Specifications: Material, AL6061-T6, Type, Threadless, Color, Black, Length, 90, Angle, +/-12°, Finish, Anodized, Bar Clamp, 31.8, Fork Dia, 1-1/8`, SHIPS TODAY! Order before 1:30PM EST, M - F, and this item ships the same day! HAVE A QUESTION?Expert customer service by bike experts! A Real Brick And Mortar Retail Bicycle Shop with people you can talk to! Contact Us! (9-5 Mon-Fri, 12-4 Sat & Sun EST) Chat With Us