Power Tank Monster Valve LOCK for Icon Pro InnerLock Wheels

The Power Tank Monster Valve LOCK is an oversized, high-flow secondary valve stem machined from 7018 aluminum, designed specifically to replace one InnerLock bolt on Icon Pro wheels using the existing 7/16-20 threaded hole. At 1.1 oz per valve, it adds no meaningful rotational mass and does not require tire rebalancing after installation. The LOCK mounts as a second stem alongside your factory Schrader valve, so existing TPMS sensors stay in place and fully functional.

Faster Air-Down Without Stopping the Day

The Monster Valve LOCK's high-flow design can air a 40x13.5x17-inch tire down from 35 psi to 10 psi in under 30 seconds. That kind of speed means a four-tire air-down takes roughly two minutes instead of ten or fifteen, which adds up quickly on a full day of trail driving with multiple elevation changes. The re-engineered red air-down collar is more ergonomic than earlier versions, making one-handed operation more reliable when you're crouched next to a muddy wheel.

No Tire Dismount Required

Installing the Monster Valve LOCK does not require pulling the tire off the wheel. Unscrew one InnerLock bolt from the Icon Pro wheel, swap the o-ring onto the Monster Valve LOCK, and thread it into the same hole. Power Tank states the threaded hole should be blown out and inspected for debris before installation. Because the LOCK threads into an existing hole rather than requiring a new one drilled or tapped, the process is accessible to anyone comfortable with basic hand tools.

Secondary Stem Keeps Factory Safety Systems Intact

Because the Monster Valve LOCK installs as a second valve stem rather than replacing the factory Schrader, the original TPMS sensor stays on the OEM stem and continues to report normally. Drivers who rely on factory tire-pressure monitoring for highway driving retain that function without modification or aftermarket TPMS hardware. The all-aluminum construction (body, collar, and cap) is 5 times stiffer than a standard metal valve stem, reducing the risk of stem damage from trail debris or wheel flex.

Features

• 7018 aluminum body: lightweight at 1.1 oz per valve, with aluminum collar and cap
• Icon Pro InnerLock fitment: threads into the existing 7/16-20 InnerLock bolt hole. No drilling or tapping required.
• No tire dismount required: installs with the tire mounted on the wheel
• Secondary stem design: retains factory Schrader valve and TPMS sensor
• Re-engineered red air-down collar: redesigned for improved ergonomics and ease of use
• Lifetime warranty: warranty void if used with balancing beads

Specifications

Who This Is For and Isn't

The Monster Valve LOCK is for Icon Pro InnerLock wheel owners who want significantly faster tire air-down and air-up on the trail without removing tires from wheels for installation. It suits overlanders and off-road drivers running large tires who air down frequently and want to preserve factory TPMS function.

The Monster Valve LOCK is not compatible with any wheel other than Icon Pro InnerLock wheels. The 7/16-20 thread and InnerLock bolt-hole geometry are specific to that wheel. It is not compatible with balancing beads; use with balancing beads voids the warranty. Inflation speed claims require a Monster Chuck and a Power Tank CO2 system, which are sold separately.

Common Questions

Which wheels does the Monster Valve LOCK fit?

The Monster Valve LOCK is designed exclusively for Icon Pro wheels with the InnerLock bolt system. It threads into the existing 7/16-20 InnerLock bolt hole and is not compatible with standard valve stem holes or other wheel brands. Buyers unsure of compatibility should verify their Icon Pro wheel uses the InnerLock bolt pattern before ordering.

Do I need to remove the tire from the wheel to install it?

No tire dismount is required to install the Monster Valve LOCK. The valve threads into an existing InnerLock bolt hole on the Icon Pro wheel with the tire still mounted. Power Tank recommends blowing out and inspecting the threaded hole for debris before threading the valve in.

Will the Monster Valve LOCK work with my factory TPMS sensors?

Yes. The Monster Valve LOCK installs as a secondary valve stem alongside the factory Schrader valve, so the original TPMS sensor remains on the OEM stem and continues to function normally. No TPMS modification or replacement is required for this secondary-stem installation.

How fast does the Monster Valve LOCK air down a tire?

Power Tank states the Monster Valve LOCK can air a 40x13.5x17-inch tire from 35 psi down to 10 psi in under 30 seconds. Inflation speed back to trail pressure depends on the air source; when paired with a Monster Chuck and a Power Tank CO2 system, the same tire can be inflated in approximately 40 seconds. The Monster Chuck and Power Tank system are sold separately.

Can I use the Monster Valve LOCK with balancing beads?

No. Use with balancing beads voids the Monster Valve warranty. Drivers who use balancing beads in their tires should not install the Monster Valve LOCK.