Seismic Defcon Barrel Bushings Bundle Pack

Seismic® Defcon™ Barrel Bushings

Seismic’s Defcon barrel bushings are manufactured from 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 finer Hanger bushing pockets.
• Inner Diameter carefully calibrated for snug fit on standard Kingpin shafts.
• Mold-top ends machined for exact height and superior flatness. – No “dished” end surfaces.

Note: May feel slightly softer than comparable duros in other bushings. For optimal bushing performance, do not under-tighten or over-tighten kingpin nuts. Replace bushings that show signs of excessive wear, weathering, or ageing.

Each Seismic Defcon Barrel Pack Features a single pair (enough for 1 truck) of each of the following:

• 81a Sky Blue
• 84a Bubble Gum
• 87a Mango
• 90a Mint
• 93a Grape

Available in Three (3) precision-fit heights…

• Standard 0.60-inch (15mm): Optimal height both Board-Side (BS) and Road-Side (RS) for many modern longboard trucks, especially those assembled with BS washers. (e.g., Bear, Caliber, Paris, Dont Trip Poppy / Slalocybin, 161)
  
• 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.
  
• Tall 0.75-inch (19mm): Optimized fit both BS and RS in many modern race trucks. (e.g., Exile, Rogue, Ronin, Skoa, Valkyrie, Zealous, Dont Trip Boomer / DH-Cybin / Haki / Molly) Also fits BS in Caliber trucks if shim is removed.