Slappy x Bam ST1 Hollow Trucks Pair | 8.0"

Slappy x Bam ST1 Hollow Trucks Pair | 8.0"

Bam's colourway on Slappy's lighter ST1 Hollow.

The Slappy x Bam ST1 Hollow is a collab between Mike Sinclair's Slappy Trucks and Bam Margera, in a black and purple colourway, sold as a pair. This 8.0" size is for street skaters who want Slappy's grind-first truck with a finish that stands out.

Underneath it's the ST1 Hollow: Slappy's classic geometry with a hollow axle and hollow kingpin, which brings the weight down to 354g per truck at 8.0", 20g lighter than the solid ST1 Classic. You get the same quick turn, no break-in time and a kingpin that stays out of the way on smiths, feebles and slappies, at Slappy's standard 53.9mm height.

Key Features

• Bam Margera collab: black and purple colourway
• Hollow axle and kingpin: 354g per truck, 20g under the solid Classic
• Grind-first ST1 geometry: kingpin stays clear on kerbs and ledges
• Quick turn, no break-in: dialled straight out of the box
• 8.0" axle: made for 7.875" to 8.125" decks
• Sold as a pair: two trucks, enough for one board

Specs

• Size: 8.0"
• Axle width: 8.0"
• Hanger width: 136mm
• Height: 53.9mm
• Fits boards: 7.875"–8.125"
• Weight: 354g per truck
• Kingpin and axle: Hollow
• Colourway: Black and purple
• Sold as: Pair (2 trucks)

What Size Board Does It Fit?

Slappy names every ST1 by the deck width it fits, so an 8.5 truck goes on an 8.5" deck. Aim to be within about 1/8" either side; up to about 1/4" still works if you like your wheels a touch in or out from the edge.

This collab comes in 8.0", 8.25", 8.5" and 9.0".

About Slappy Trucks

Slappy Trucks is the work of Mike Sinclair, one of skateboarding's best known team managers, with years spent running teams for Tum Yeto brands Toy Machine and Foundation and for Nike SB. When the world locked down during the pandemic, Sinclair started pulling his trucks apart in his garage. In his words, it was either trucks or learn Japanese. Sampling ran for more than two years before he announced Slappy in late 2022, independent and run out of his garage.

Every ST1 is built around one idea: the best grind clearance possible without giving up a good turn. Slappy publishes its own grind clearance and slappy angle figures, and its inverted kingpin models push them furthest. Slappy also sells its parts one at a time, so a worn piece can be replaced without buying a whole new truck. Skaters pick Slappy for kerbs, ledges and slappies that lock in without the kingpin catching.

FAQs

What size board do the Slappy x Bam ST1 Hollow 8.0" trucks fit?
They fit decks from 7.875" to 8.125", with the best match on an 8.0" deck. Slappy names its trucks by deck width, and within about 1/4" either side still works. On an 8.25" deck, go for the 8.25" size.

What's the difference between the ST1 Hollow and the ST1 Classic?
Same geometry and turn, less weight. The Hollow has a hollow axle and kingpin, so the 8.0" weighs 354g per truck against 374g for the Classic. If you want a lighter board for flip tricks, the Hollow is worth it.

How tight should I set my Slappy trucks?
Start with the kingpin nut snug, then back it off a quarter turn at a time until the board turns easily but doesn't wobble at speed. Slappys need no break-in, so set them how you like from day one. Leave at least two threads above the nut.

Do I need risers with these trucks?
Usually not. At 53.9mm they suit most street wheels up to about 56mm without risers. If you run bigger or softer wheels, add a 1/8" riser and use 1/4" longer bolts.

Do these come as a pair?
Yes. You get two trucks, which is enough for one board.

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Grind more. Hang up less. Slappy everything.