Independent Mid Trucks Silver | 139 (Pair)

Independent Mid Trucks Silver | 139 (Pair)

Lower Indys with an inverted kingpin, made for technical street.

Independent Mid trucks sit lower than a Stage 11 and use Independent's own inverted kingpin design. The 139 has a 8.0" axle for decks around 7.8" to 8.2", and the lower hanger gives a better contact angle on your nose and tail for flip tricks, ledges and technical street skating.

The inverted Grade 8 kingpin sits flush under the hanger, so there's nothing to hang up on during grinds, and it adjusts with either a 9/16" socket or a 5.5mm Allen key. A steel shaft nut with a nylon locking insert in the baseplate stops the side-to-side play common on inverted kingpins. The hanger and baseplate are A356 T6 aluminium with an SCM435 chromoly axle and full-size 90a cushions, at a 52mm height that suits wheels 53mm and under.

Key Features

• 52mm Mid height: lower than Stage 11 for a better flip angle
• Inverted Grade 8 kingpin: no kingpin hang-ups on grinds
• Two-tool adjustment: 9/16" socket or 5.5mm Allen key
• Shaft nut in the baseplate: steel with nylon lock, stops lateral slop
• A356 T6 aluminium hanger and baseplate: heat-treated for strength and grind feel
• SCM435 chromoly axle, 90a cushions: durable, with a responsive turn
• Guaranteed for life: Independent's lifetime warranty

Specs

• Size: 139
• Axle width: 8.0"
• Best board width: 7.8"–8.2"
• Height: 52mm (Mid)
• Kingpin: Inverted Grade 8, adjust with 9/16" socket or 5.5mm Allen key
• Shaft nut: Steel with nylon locking insert
• Hanger and baseplate: A356 T6 heat-treated aluminium
• Axle: SCM435 chromoly steel
• Bushings: Full-size 90a cushions
• Recommended wheels: 53mm and under
• Colourway: Silver
• Sold as: Pair (2 trucks)

What Size Board Does It Fit?

Match the truck's axle width to your deck width, ideally within about 1/4" either side. Too narrow feels twitchy and unstable; too wide and the wheels stick out past the deck and catch your feet. Here is Independent's official size chart for the Mid.

Mids come in 129 to 159. For decks wider than 9", look at the Stage 11 169.

About Independent

Independent Truck Company was founded in 1978 by Richard Novak and Jay Shuirman, the pair behind Santa Cruz Skateboards, together with Fausto Vitello and Eric Swenson, whose San Francisco company Ermico Enterprises manufactured the trucks. The first Indys came out that year, and the brand is still based in Santa Cruz, California.

Today Independent is the truck most skaters picture when they think of a skateboard truck. It is known for a stable, predictable turn, a hanger that grinds smooth and a lifetime guarantee under the motto Built to Grind. From the classic Stage 11 to the lower Mid and the featherweight Forged Titanium, there is an Indy for street, park, bowl and old-school shapes, and they all feel familiar the moment you step on.

FAQs

What size board do the Independent Mid 139 trucks fit?
Boards from about 7.8" to 8.2" wide. The 139 has a 8.0" axle; keep axle width within about a quarter inch of your deck width.

Mid vs standard Indys: what's the difference?
Height and kingpin. Mids stand 52mm tall versus 55mm for a Stage 11, and use an inverted kingpin that sits flush under the hanger. That means a lower, quicker flip feel and nothing to catch on grinds, while Stage 11s give more wheel clearance for bigger wheels and transition.

Do I need risers with Indy Mids?
Not if you run wheels 53mm and under, which is what Independent recommends. Mids are designed for smaller street wheels; if you want 54mm or bigger, a 1/8" riser or a Stage 11 is the better choice.

How do I adjust an inverted kingpin?
The same way as a normal one, just from underneath. Use a 9/16" socket on the kingpin nut or a 5.5mm Allen key in the kingpin head, and turn a quarter at a time until the turn feels right.

Do the Independent Mid 139 trucks come as a pair?
Yes. You get two trucks, enough to set up one skateboard, with kingpin nuts, axle nuts and bushings fitted. Mounting hardware (bolts) is not included, so grab a set of 7/8" or 1" bolts if you don't have them.

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Built to grind. Independent since 1978.