Seismic G5 30-Degree Spring Truck

(4 customer reviews)


One (1) Seismic Stable-Turn 30-degree G5 spring truck.

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SKU: G5_30D Categories: ,

Seismic® G5™ 30-degree Spring Truck
180mm faced Hanger with 30-degree Baseplate in stone finish.
Choice of Solid or Hollow axles, Springs in four (4) strength options.
Price is for a single truck.  Order two (2) trucks for one skateboard.

General setup suggestions
For optimal traction, power, and control, we usually suggest a 30-degree truck at the tail and a 45-degree truck at the nose, with stiffer springs at the tail than at the nose. Use two 45-degree trucks on symmetrical (twin-tip) freeride decks. Use stiffer springs if you’re heavier and/or taller than average, softer springs if you’re lighter and/or less tall.

The original precision longboard truck – five generations later!
A major upgrade to our flagship high-rebound truck technology.

Power, stability, maneuverability, and control since 1993

No truck has more energy return, more precision, or better steering control. The world’s best for pumping!

Stronger, lighter, and better-looking

Our crack team of engineers and industrial designers scoured every cubic millimeter of the previous (G4) model – looking for material to trim and spots to toughen, all while improving aesthetics.

More precise Spring System

Breakthrough Spring Cap design keeps Springs much straighter as they compress – resulting in a larger turning range and enhanced steering control.

Easier maintenance and better Pivot Bolt fastening

Thicker, stronger Pivot Bolt is easier to remove and install, and it threads more securely into a larger Baseplate Locknut. Stronger, reusable Pivot Bolt Clip is easy to remove and install by hand, and it’s fastened to a rubber “leash” that prevents it from ever getting lost. Ingenious new multi-part Baseplate structure creates uniform thickness at mounting corners, so you need mounting bolts of only one length.

Most components backwards compatible with older models

Exception: G5 Pivot Bolts, Baseplate Locknuts, and Pivot Bolt Clips will not fit older (G4) Baseplates; and older (G4) Pivot Bolts, Baseplate Locknuts, and Pivot Bolt Clips will not fit G5 Baseplates.

Mounting Advisory
Seismic G5 Baseplates have a unique structure and require full bottom surface support. Mount them directly onto the bottom of your deck, or else with stiff riser blocks between the trucks and the deck. Do not use rubber or urethane shock pads. These amplify stresses on the Baseplates – especially if the mounting bolts are over-tightened or tightened unevenly. Then relatively minor impacts can push the Baseplates past their breaking point.
G5 trucks will not fit through standard drop-through mounting holes, and they should not be drop-mounted to LDP bracket extensions. Unless extremely stiff riser blocks (preferably wood or even metal) underneath the trucks, they should not be top-mounted on LDP brackets or on decks with drop-through mounting holes.

Axle Height, Axle Offset, and Roll Center

Axle Height: 58.5mm / 2.30 inches from baseplate bottom to axle midpoint
Axle Offset (Rake): 14.0mm / 0.55 inches
Roll Center: 19.8mm / 0.78 inches above axle midpoint
More Axle Offset (or Rake) pushes the Roll Center higher (towards the deck), resulting in quicker lean response and better wheel traction.  Less Axle Offset (or Rake) leaves the Roll Center lower (near the axles), resulting in better lean control and stability.

4 reviews for Seismic G5 30-Degree Spring Truck

  1. James

    I’ll keep this brief. Seismic trucks are fantastic. I run them on my dedicating carving setup on a 25in WB. Obviously, the 30* is my rear truck. I did take it off briefly, to try running it with a front Bennett Vector on my LDP setup. The problem I have with it is now I have to buy another 30* to add to that setup so that I can run my “test” truck with the carver setup as intended. They feel intuitive. The even feedback across an entire turn, from start to finish, is incredible.

    The customer service is second-to-none. Don’t be afraid to ask a question. You’ll get a response back in lightning time. Dan is extremely helpful and knowledgeable.

    I can’t say enough good things about Seismic trucks. I don’t leave home without my board.

  2. dvdc01

    I could not agree more- these trucks rule. As an Old school skater still shreddin the gnarl, I ‘ve skated on all kinds of trucks- but these are AMAZEBalls! I plan to by a set of 30’ degree for my park board or to apply to my downhill and cruiser setup when I start doing faster, steeper runs.

  3. Robert Taylor

    Guys Thanks I’m back on my lush samba 40 added a waterbourne surf adapter with 5 degrees raised front and rail rear. Then back on with my seismic 30 degree front and rear, OMG. So smooth thanks super fast rebound on your trucks. Highly recommend as not a problem in over 10yrs

  4. Blake

    These are the BEST things to ever happen to skating imo. People are always baffled when i let them ride my setup! “Feels like I’m floating on air” is a common response. (I also ride a 4 ply concave d3ck with cambre that’s flex AF). Great to pair with ceramic bearings imo.

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