Kalloy Uno Comfort Sus Seatpost 27.2 x 350mm Black Model=Seat Bag Deluxe Optimized for 11-speed drivetrains though

Optimized for 11-speed drivetrains though compatible with 9 10-speed chains as well as 12-speed Eagle 12-speed Campagnolo

5CM) & KIT 160/180

35 ISO 406 Bead Wire Tread/Sidewall Color Bk/Blk PSI 110 Weight (Grams) 677 TPI 60 Durometer Features Reflective Sidewall No

9 Bottle Type Bike Insulated Yes Material Plastic Defined Color Gray

but with the strong construction we can make the shaft thinner

Kalloy Uno Comfort Sus Seatpost 27.2 x 350mm Black Model=Seat Bag Deluxe Optimized for 11-speed drivetrains thoughThe Kalloy Comfort Seatpost has a single bolt head pressed onto shaft. Single bolt head pressed onto shaft 40mm travel Length 350 Max Height 250 Clamp Style Standard Rails Offset (mm) 12 Color Black Diameter 27. 2 Defined Color Black