I’ve towed with both the Rivian R1T and R1S, including in the Rocky Mountains. Around town, they’re excellent tow vehicles. They have plenty of power, and neither seems particularly bothered by the act of pulling a trailer. The trouble begins when you ask how far you can go before charging. Hook a large RV to an EV, add highway speeds and a climb, and that impressive range estimate can shrink in a hurry. I’ve been on towing trips where planning the next charging stop became more demanding than driving to it.

That’s frustrating because the R1S is one of my favorite electric SUVs. It has three rows, room for seven, real off-road ability and enough performance to make the family ask whether you meant to accelerate quite that hard. The Quad-Motor model I drove produces 1,025 horsepower and 1,198 pound-feet of torque. Rivian estimates 0–60 mph in 2.6 seconds under the right conditions, which is a ridiculous number for a seven-seat SUV. Its EPA-estimated range is 374 miles with the Max battery, and it’s rated to tow 7,700 pounds. Those are impressive figures, but that range number describes the SUV without a travel trailer hanging off the back.

The Rivian R1S: Before the Hitch Goes On
Even with the more attainable Dual-Motor configuration, you’re looking at 533 horsepower, so nobody needs the Quad to merge onto a freeway. The Quad is the version for people who want their practical family vehicle to have the acceleration of something deeply impractical. I also appreciate how much the R1S can do away from pavement. Its capability is more than an adventurous-looking paint color and a screen showing pictures of rocks.
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Inside, the design feels modern without making a big production of it. There’s a large central touchscreen, a separate driver display and a smaller screen for second-row passengers. I would still like more physical controls, and the front seats could use a little extra padding for my large American tush. But the cabin works well, the storage is useful, and the third row gives smaller passengers a proper place to sit. The R1S feels like an SUV that happens to be electric, which is a considerable compliment coming from me.
Still, 1,025 horsepower cannot solve a charging stop that arrives earlier than expected. The R1S has enough muscle to tow a substantial trailer; towing range is the lingering issue. That’s where the 2027 Pebble Flow gets interesting.

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The Pebble Flow: The Trailer With its Own Motors
The Pebble Flow is a 24-foot, 8-inch electric travel trailer with two motors that drive its wheels while it’s being towed. Its Easy Tow system adds propulsion to reduce the work demanded of the tow vehicle. Pebble says the system cuts towing drag by an estimated 50% compared with similarly sized RVs and can provide assisted towing for up to 250 miles before the trailer needs recharging. Those are Pebble’s estimates, and the result of any particular trip will depend on speed, terrain, weather and how much assistance you ask for.

The Flow weighs 5,900 pounds dry and has a 6,800-pound gross vehicle weight rating. That matters: its motors may help move the trailer, but they do not erase its weight or increase the R1S’s tow rating. You still have to account for the loaded trailer, hitch setup and tongue weight, which Pebble lists at 680 pounds. The R1S’s 7,700-pound tow rating gives this pairing room within the published limits when properly equipped.
I’ve pulled a Pebble Flow before, behind an Ineos Grenadier Quartermaster. That wasn’t my favorite towing combination, and I was curious whether the Rivian’s electric power delivery would be a better partner for a trailer that can help propel itself. On this short drive, it was. The R1S had no trouble getting the Flow moving, and with the trailer’s added assistance, the combination felt startlingly eager. I’ve used the word “uncanny” to describe it, because you expect to feel more of a nearly 6,000-pound trailer back there. Instead, it felt as though the trailer had decided to be a team player.

I watched the Rivian’s energy-use display and saw a roughly 30% penalty during my brief test. That was encouraging compared with some of my previous EV towing experiences, but it was a snapshot, not a measured long-distance result. I would love to tell you that this pairing will reliably travel 150 or 200 miles between stops. I can’t establish that from a short drive. I can say that the technology made the R1S feel less burdened, and that’s a meaningful first impression.
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Pebble’s forthcoming OS 2 software adds a 40-kW Boost Mode for extra trailer assistance on grades or when the driver wants to draw more heavily on the Flow’s battery. The update is slated to reach existing Flows as well as new ones. Of course, using more trailer battery for propulsion means less energy available for camping until you recharge it. Regenerative braking can put some energy back during descents and braking, but this is not a perpetual-motion RV, no matter how badly I want one.

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There’s a campsite attached to all this technology
The Flow carries a 45-kWh lithium iron phosphate battery and can DC fast charge; Pebble specifies a 0–80% charge in under an hour. It can also supply power to appliances or serve as home backup power through its 12-kW inverter. An included iPad lets you maneuver the unhitched trailer remotely, and Magic Hitch can align and couple it to the tow vehicle. Those features sound like science fiction until you’re trying to position a trailer in a cramped campsite and remember how much fun backing one up usually is.



For 2027, buyers can choose the familiar Murphy queen bed and desk arrangement or, on the Founders Edition, twin beds with a cushion that joins them into a king. The twin layout also adds about 30 cubic feet of under-bed storage. It also offers a longer awning option and a new exterior solar port. The available Self-Powered Package (a partnership with Jackery) combines the 1.1-kW rooftop array with four portable 500-watt panels for up to 3.1 kW of peak input; the system can accept up to 4 kW of combined solar with additional compatible panels. Sunshine and campsite conditions will determine what you actually collect.
It’s a clever, comfortable trailer, though I still wish the bathroom were a little roomier. It needs more storage too. It’s also expensive: Pebble lists the Magic Pack from $159,000 and the Founders Edition from $189,000. Add a Quad-Motor R1S, and you have assembled a magnificent way to make your accountant stare grimly across the desk.

The R1S was part of the Pebble Flow program and not a regular test loaner.
Final Thoughts
I hate the cliché “a match made in heaven,” but the R1S and Pebble Flow make a persuasive case. The Rivian supplies the family space, off-road talent, and effortless power. The Pebble tackles one of EV towing’s biggest annoyances by helping move its own substantial weight.
My drive was too short to settle the long-distance range question, and I would want a loaded highway trip before declaring victory. Still, this is the first time I’ve towed an RV with an EV and felt that the trailer was helping with the problem instead of merely creating it. That’s impressive. It’s also a lot more fun than watching the range estimate fall off a cliff.
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