Seismic Defcon Barrel Bushings Medium

Seismic Defcon Barrel Bushings Medium
Seismic’s Defcon ultra-high-rebound urethane has a remarkable set of unique and highly-advanced properties – and now we’ve applied it to bushings! Defcon is the fastest wheel formula in the history of skateboard racing – credited with virtually every significant world distance and speed record, including the official Guinness Standup mark. (Pete Connolly, 91.17 mph / 146.73 kph – Sept. 16, 2017, at The Top Speed Challenge in Quebec, Canada.)

A major step forward in bushing performance

• Deeper lean and truer, more fluid steering with less lateral hanger slop!
• Highly-energetic yet smooth and controlled return-to-center
• Larger compression range compared to other bushing formulas in the same duro – No premature packing • Fuller wheel contact (less “outside wheel lift”)
• Smoother, more linear resistance profile – Consistent feel • Advanced control

Fine-tuned dimensions for high-performance fit!

• Full 1.0-inch outer diameter optimizes seating in bushing pockets of finer modern hangers.
• Inner diameter carefully calibrated for snug fit on standard kingpin shafts.
• Mold-top ends precisely machined for exact height and superior flatness. – No warped end surfaces.
• Minimal radius on mold-bottom edges, and zero radius on mold-top edges. – Fuller contact with bushing seats and washers.

Precision-fit height: Medium
0.65-inch (16.5mm): Optimal height both BS and RS for brands including Aera, Carver, and Sabre. Also fits well both BS and RS in many modern trucks where BS washers are optional or omitted. (e.g., Dont Trip Poppy / Slalocybin) If paired with a shorter bushing, fits well in many trucks assembled with BS washers. (e.g., Bear, Caliber, Paris) Fits same trucks both BS and RS if BS washer is removed.

Note: Defcon bushings may feel slightly softer than comparable duros from other brands using more basic urethane formulas. For optimal bushing performance, do not under-tighten or over-tighten kingpin nuts. Replace bushings that show signs of excessive wear, weathering, or aging.

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