Get the Sun Mountain PX4.
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| Bag Boy Nitron Swivel | Sun Mountain PX4 | |
|---|---|---|
| Price (MSRP) | $359.95 | $330Lower price |
| Type | Push Cart | Push Cart |
| Wheels | 3 | 4 |
| Weight | 18.5 lbs | 17.2 lbsLighter |
| Folded size | 18.7 × 13 × 22 in | Not published |
| Folded volume | 3.1 cu ft | Not published |
| Open size | Not published | Not published |
| Fold | auto-open (Nitro-Piston), one step | E-Z Latch System, two steps |
| Brake | dual rear brake system, locks both back wheels | Not published |
| Swivel front wheel | Yes | Not published |
| Bag retention | Top-Lok | adjustable length bungee cords |
| Umbrella holder included | Not published | Yes |
| Cup holder included | Yes | Yes |
| Storage console | Yes | Yes |
| Seat included | Not published | Not published |
| Warranty | 2-year limited warranty | 3-year frame / 1-year other parts |
Get the Sun Mountain PX4.
Get the Sun Mountain PX4. It lists at $330 — $29.95 less than the Nitron Swivel — weighs 1.3 lbs less, comes with two umbrella holders and a three-year frame warranty. The Nitron Swivel is worth considering if you want a cart that opens in one step with the Nitro-Piston system and you care about a brake that locks both rear wheels simultaneously; Sun Mountain's copy doesn't describe any brake for the PX4.
Both are push carts with a storage console and a cup holder. Bag retention is Top-Lok on the Nitron Swivel and adjustable-length bungee cords on the PX4.
The PX4 runs four wheels with extendable front axles. The Nitron Swivel runs three, with a 360° swivel front wheel that locks. A fourth wheel widens the base; whether that matters on your course is a judgment call. Sun Mountain doesn't say whether the PX4's front wheels swivel.
The Nitron Swivel has a dual rear brake that locks both back wheels at once. The PX4's product copy doesn't describe any brake at all. That's not the same as the PX4 having no brake, but if your course has slopes it's something to confirm before you buy.
The PX4 ships with dual umbrella holders, a drink holder, a mesh basket, and a valuables pouch. The Nitron Swivel includes a cup holder and a deep storage console — and Bag Boy's page mentions integrated umbrella storage, but is specific that no umbrella holder is included the way the non-Swivel Nitron's is. If you use an umbrella and don't want to order a separate holder, the PX4 has the advantage here and it's not close.
The Nitron Swivel folds to 18.7 × 13 × 22 inches. That 22-inch longest dimension is the one to measure against your trunk height. Sun Mountain doesn't publish folded dimensions for the PX4, so there's no comparison to make there — just check whether 22 inches clears your hatch before buying the Nitron.
The Nitron Swivel opens in one step via what Bag Boy calls the Nitro-Piston. The PX4 uses the E-Z Latch system, which takes two steps. Use the maker's terms; that's all either of us knows about how they feel in practice.
Sun Mountain covers the PX4's frame for three years, other parts for one. Bag Boy covers the Nitron Swivel with a two-year limited warranty. The frame warranty difference is real over a cart's lifespan.
Get the Sun Mountain PX4 if:
Get the Bag Boy Nitron Swivel if:
The PX4 lists for less, weighs less, and comes stocked with more accessories — particularly the umbrella holders, which aren't included with the Nitron Swivel. Sun Mountain's three-year frame warranty is the longer frame coverage, though its other parts get one year to Bag Boy's two. The Nitron Swivel's case rests on two specific things: a dual rear brake that Sun Mountain's copy doesn't match, and published folded dimensions if trunk fit is something you need to confirm before buying.
Get the Sun Mountain PX4.