niumanery MTB Bicycle Seat Post Shim Tube Sleeve Adapter 27.2mm to 30.4mm/30.8mm/31.6mm

100% brand new and high quality Features: Inner diameter is 27.2mm/1.07inch, 3 type of outer diameter to choose Use this seatpost sleeve adapter ring, you can use 30.4/30.8/31.6mm seatpost on your 27.2mm bike seatpost Can be converted to 27.2 seatpost diameter of 30.4 or 30.8 or 31.6 diameter, just this little accessories can save money to buy a seat tube. Suit for MTB bike, mountain bike, road bike etc Please check your bike frame seat tube outside diameter. measure the inside diameter of your old clamp.Or measure the outside diameter of your seat tube (on your bike frame). then make a right choice Specification: Material: Aluminum alloy Inner diameter: 27.2mm/1.07inch Outer diameter: 30.4mm/1.20inch; 30.8mm/1.21inch; 31.6mm/1.24inch Length: app.6cm/2.36inch Color: Black Quantity: 1 Pc Note: 1.Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1 x Seat Post Tube (without retail package)