Dynamic's Dual Edition 34mm Trucks and the Axle Math Behind Them

Straight off the product page, no interpretation added:

• Width: 34mm
• Axle: longer single-piece axle, cut for dual bearing wheels
• Kingpin: inverted screw kingpin, which FlatFace says "prevents hang-ups on grinds"
• Baseplate: precision, pre-threaded, engraved logos
• Hardware: nylon lock nuts; mounting screws included, and the listing says to use only those
• Bushings and pivot cups: urethane
• In the box: two pre-assembled trucks and one fingerboard tool
• Price: $56 per set
• Origin: designed and assembled in the USA
• Assembled width with G10 wheels: 32.5mm
• Assembled width with G9 wheels: 33.6mm

Two things the listing does not say: it doesn't give a durometer for the urethane bushings, and it doesn't identify the FlatFace G9 and G10 wheels beyond those names. If you're pairing wheels from another brand, you're working without a published number for what your assembled width will be.

FlatFace's own wheel pages fill in the second gap. The FlatFace G10 dual-bearing wheels are the dual-bearing version of FlatFace's G8, listed at 4.71mm wide and 8mm in diameter, at $60. The FlatFace G9 dual-bearing wheels pair the outer shape of FlatFace's G4 with the inner design of its G7 dual-bearing wheel. FlatFace's G9 pages give no diameter or width; fingerboardstore.de lists the G9 at 5.1mm wide and 7.7mm in diameter. Both run two bearings per wheel.

The first gap is still open. Neither this listing nor Dynamic's own Dual Bearing Edition page publishes a durometer for the bushings.

"34mm" is the truck spec, not the widest point of your finished setup. With wheels on, FlatFace quotes 32.5mm on its own G10s and 33.6mm on its G9s — a 1.1mm spread, so roughly half a millimetre per side depending on which wheel you run.

That's the number to hold against your deck. On a 34mm deck, either wheel choice leaves the deck proud of the wheels. On a 32mm deck, G9s would put you a good 1.6mm wider at the wheels than the deck is. Whether you read that as more stability or as wheels catching on the edge of a ledge is a preference call, and the listing doesn't take a side on it.

The other geometry claim is Dynamic's standing pitch: FlatFace says the wider wheelbase "leads to an increased pop angle of your deck." That's brand copy about how the deck sits between the trucks, not a measured figure. There's no degree number on the page to check it against.

Nothing yet that I can attribute. FlatFace's 34mm chrome listing went up on 16 September 2026, though Dynamic has listed the Dual Bearing Edition on its own site since 3 October 2025, and I have no Reddit threads, Discord messages or shop feedback on the Dual Edition specifically in hand at the time of writing. Dynamic trucks in general have a long paper trail in the community; this particular axle length does not, or at least not one I can point you at.

So treat the usual dual-bearing questions as open until someone posts a longer-term report: how the nylon lock nuts hold after repeated wheel swaps, and whether the extra axle length changes anything about how the wheels sit under load on a rail. The spec sheet cannot answer either.

If you are already committed to dual bearing wheels, this is the straightforward route: a pre-assembled set with the correct axle, a tool, urethane bushings and pivot cups already in, and a pre-threaded baseplate so you're not fighting the first mount. $56 is real money for trucks, and the page doesn't list the standard Dynamic price alongside it, so I can't tell you what the dual-specific axle costs you as a premium.

If you are running single-bearing wheels and happy, there is nothing here for you. The Dual Edition solves one problem, and if you don't have that problem you're buying a compatibility constraint you'd then have to work around.

The genuinely unresolved case is the rider who wants to try duals but likes swapping wheels around a collection. These trucks commit you. That's not a flaw, it's the design brief — but it's worth knowing before the box arrives.

Where to buy

The 34mm chrome set is listed on FlatFace's site at $56. Chrome is the variant in this listing; the feed doesn't confirm other colorways for the Dual Edition.