TripleLock Phone Mount for R2

TripleLock Phone Mount for the Rivian R2

The OpenSourceEV Parts TripleLock Phone Mount puts your phone right where you want it in the Rivian R2: at eye level, clear of the steering wheel, and within easy reach. It locks in solid, so your screen stays steady instead of bouncing on every bump, and it leaves the dash vent working exactly as it should.

Designed, manufactured, and supported by OpenSourceEV, and extensively tested in a Rivian R2.

Why the TripleLock

• The Right Spot: The TripleLock sits at the far left end of the dashboard, next to the driver's door -- the only place with room. Your phone stays in your line of sight for navigation and calls without blocking the R2's screens or hiding behind the steering wheel.
• Locked In, Not Just Clipped On: Most snap-in phone mounts are held only at the top and bottom, which lets them pivot and bounce over every bump. The TripleLock is held at three points -- the left, the bottom, and a diagonal from the top to the right -- so it has nowhere to move. Your phone stays steady and stays where you aimed it.
• Your Air Vent Still Works: The left end of the R2's dash vent has a short section with no airflow. The TripleLock fits entirely inside that section, so the vent keeps blowing exactly as Rivian designed it.
• No Damage, No Modifications: It snaps in by hand behind the existing dash trim in less than 5 seconds. No adhesives, no drilling, no tools in the car, and it pops back out cleanly whenever you want.
• Works With the Holder You Want: The mount uses a standard ball joint, the same connection most car phone holders use. Add one of our MagSafe holders at checkout, or use a compatible holder you already own.
• Built to Last: The ball is bolted on with a stainless steel bolt and nut, not plastic clips that can snap. If you ever switch holders or damage the ball, you replace just the ball -- not the whole mount.
• Made for Car Interiors: This is a 3D printed part made from ASA, a plastic designed to resist sun fading and heat, so it holds up on a dashboard year-round. We print every one ourselves in Pittsburgh, PA, and back it with a 1-year warranty.
• Passenger Side Available: A mirror-image passenger-side version is sold separately.

Why Three Points Matter

A phone mount is only as good as what it's anchored to. A mount held at just two points acts like a hinge: the weight of your phone rocks it back and forth, and road vibration does the rest. Your screen shakes, the holder works loose, and your phone ends up pointed somewhere you didn't aim it. The TripleLock's third, diagonal contact point removes that hinge. Once it snaps in, it stays put -- on the highway and on rough pavement.

Choosing a Phone Holder

The TripleLock is the part that attaches to your R2. The phone holder is the part that holds your phone. It clamps onto the round ball at the end of the mount, and you can tilt and rotate it to the exact angle you want, then lock it with a small screw on the back.

We've standardized on MagSafe so your phone snaps on and off magnetically with one hand. MagSafe is built into iPhone 12 and newer, and MagSafe-compatible cases are available for nearly every phone on the market, Android included. If your phone or case doesn't have MagSafe, every holder includes a metal ring you can stick to your phone or case so it works the same way.

Four holders are available at checkout, with more coming soon:

• OSEV Offset Charging MagSafe: Our own holder. Charges your phone wirelessly while it's mounted. A dim blue LED ring helps you line up your phone at night. Draws less than 1mW when not charging, so it won't drain your battery. 17mm only.
• ATB 720 Degree MagSafe: Non-charging. A second adjustment point along the arm gives the most positioning flexibility of any holder we carry.
• Lisen Offset MagSafe: Non-charging. A simple, slim magnetic holder with an offset arm.
• Lisen Charging MagSafe: Charges your phone wirelessly, fast and with minimal heat. A near-invisible blue LED ring helps you line up your phone at night. Draws less than 1mW when not charging.

Charging holders include a USB-A to USB-C cable and need an OBD-II to USB power source to plug into -- more on that below.

Ball Size Guide

Phone holders are made to fit a few common ball sizes, so the ball on your mount needs to match your holder. The TripleLock is available with a 17mm, 20mm, or 1-inch ball, or a combo pack with all three. The 17mm size fits the vast majority of phone holders, including every holder we sell. The 20mm size fits Offroam x Peak Design co-branded holders. The 1-inch size is for RAM-branded accessories only. If you're buying a holder from us or aren't sure, choose 17mm or the combo pack.

Charging Your Phone

A charging holder needs a power source. The recommended option is the OpenSourceEV OBD-II adapter, which plugs into your R2's OBD-II port (a standard connector found on every modern car) and provides both a USB-A Quick Charge 3.0 port and a USB-C PD port, with up to 48W of total combined output. That's enough to charge your phone at 15W.

Faster 25W wireless charging requires a 15-volt USB-C PD supply, and we tested five OBD-II to USB adapters -- including every one our competitors sell -- and none of them provide it. If someone claims faster charging from an OBD-II port, be very, very skeptical.