Seismic invent an all new type of longboarding truck. Aeon 30° 180mm use a unic technologie including triangle bushings(94a) who iliminate side ways vibrations without the use or need of support pin or plug. Sold as a single truck

Stabilized Geometry with no Added Parts
Aeon bushings pair to form a cylindrical hollow that locks around barrel-shaped hanger elements – a true bearing with no added parts. This patented design forces the hanger to rotate inside the tubular channel in perfect alignment with the pivot axis. Eliminates slop, aligns and stabilizes geometry without the downsides of support pins, spherical bearing inserts, or hanger plugs. Quick response from center and noticeably smoother, cleaner turns - even at deep lean angles that destabilize the steering of ordinary RKP trucks.

Advanced Control
Beyond barrel vs. cone: Aeon bushings have a wide hexagonal shape and tapering sides, for a smooth, intuitive resistance profile through a larger steering range. Tall but not too tall, for deep turns with no dive. Self-lubricating formula to prevent squeaking.

Precision Fit
Custom contouring creates mechanical lock between boardside bushing and baseplate - no washer needed. Faced hangers. Top of baseplate sloped for flush contact with deck concave when dropthrough-mounted. (Nut seats kept flat.)

Axle Height, Axle Offset, and Roll Center
Axle Height: 60.4mm / 2.378 inches from baseplate bottom to axle midpoint (39.7mm / 1.56 inches when hanger is flipped)
Axle Offset (Rake): 9.0mm / 0.35 inches