UNIVERSAL: Bike Seatpost is suitable for most of mountain bikes, road bike, fixed gear bicycle, MTB etc.
PRODUCT INFORMATION: Size: 31.6 × 400mm; The 3K matte black Bicycle Seat Post is made of Carbon Fiber, which is strong, sturdy.
DESIGN: This SeatPost is suitable for attachment to the bike saddle with a hole. If there is no hole in the bike saddle, we recommend using a hexagon wrench to tighten the screw.
INSTALLATION GUIDE: 1. Release the bolt of the old seat and unload the seat; 2. Fix the seat on the new seat; 3. Install it to your bicycle rack. There is a safe line mark on the seat post. Please insert at least above the minimum safety line.