Cane Creek G4 Thudbuster-LT Seatpost, 30.9 x 420mm BMX Grips use kit CK3217U00OS

use kit CK3217U00OS

Manufacturer Part Number: K17VN25

UPC: 884603514061

For this you will need a huge 36mm socket

Manufacturer Part Number: DROPOUT-102

Cane Creek G4 Thudbuster-LT Seatpost, 30.9 x 420mm BMX Grips use kit CK3217U00OS90mm of travel for XC, Gravel or Comfort use Patented 4 pivot parallel linkage with PTFE bushings Pedal to saddle distance remains nearly constant through travel 2 piece elastomer design. Tool free inner elastomer change for various rider weights. Medium installed, with soft and firm included Single bolt seat clamp with angle adjustment Extension: minimum 146mm to 290mm (27. 2) 320mm (30. 9 31. 6) maximum Rider weight limit of 250lb 115kg 750g (31.