Alienation MX Thunderbird Pivotal BMX Seat t-shirts Triple sealed bearings with DU

Triple sealed bearings with DU bushing

Sleeved and Pinned

Lightweight 3D Cold Forged Design for Superior Strength

The new trapezoid chromoly shape helps prevent flex while still offering a grindable surface

Silkworm is incorporated into the casing under the dual compound

Alienation MX Thunderbird Pivotal BMX Seat t-shirts Triple sealed bearings with DUThe Alienation MX Thunderbird Pivotal Seat features a subtle southwest poncho design and embroidered thunderbird. Features mid dense foam and double stitching to avoid those unseemly seam rips. Dense mid foam Double Stitched for durability Embroidered Thunderbird Raised AA Bolt Pivotal patch Hollow Bolt White Hangtag