FSA K-Force Di2 Seatpost 31.6 x 350mm SB25 MTC MFPN=ACB 4545 1125 BO-BAG The areas where the stem

The areas where the stem and levers clamp have additional reinforcement and a textured finish to avoid slip

Carbon Matrix stem body is forged 2014 aluminum with a stiffness-enhancing carbon exoskeleton which makes this 12% stiffer than the WCS alloy C220 stem

Includes 3/8inch square to 1/2inch square adaptor and 3/8inch square to 1/4inch hex adaptor

Fits Brand Trek Fits Brand Gary Fisher

backpack or vest

FSA K-Force Di2 Seatpost 31.6 x 350mm SB25 MTC MFPN=ACB 4545 1125 BO-BAG The areas where the stemOne piece continuous carbon fiber construction. Forged alloy Minimal Top Clamp (MTC). Fit 7mm standard rails and 7x9mm oval rails. Integrated plastic insert sleeve for Di2 Batteries. Available with 0 or 25mm setback TECH SPECS Vendor Full speed ahead Manufacture Number 192 0073005030 Model Name K Force Light Category Seatposts