BAL X-Chock Wheel Stabilizer for Wide Tandem-Axle Trailers & RVs — X-Tended Fit, Set of 2

The BAL X-Tended Fit X-Chock is a heavy-duty wheel stabilizer set designed to securely brace wide-stance tandem-axle trailers and RVs by applying opposing pressure between tires.

Built in the United States from rust-inhibitive zinc-coated steel, this X-Tended Fit model expands to reach wider gaps between dual tires — extending up to 17 inches at the foot pads — and arrives as a two-chock kit complete with a 3/4" ratchet wrench. Rather than locking the wheel rigidly, the X-Chock uses the tires’ natural motion to create counterforce, reducing sway and unwanted shifting while you load, unload, or move about your RV. The package supports an optional padlock for extra theft deterrence and comes with a limited lifetime warranty for long-term peace of mind.

How does the X-Tended Fit X-Chock stabilize wide tandem-axle trailers?

The X-Chock secures by pressing against opposite tire faces to form a stable brace that absorbs lateral and fore-aft movement. It doesn’t immobilize the wheel; instead it works with the tire’s flex to dampen rocking and shifting during everyday use.

• Expands up to 17" at the foot pads to span larger tire gaps
• Applies opposing force between tires rather than clamping the axle
• Zinc-coated steel resists corrosion in outdoor conditions
• Includes a 3/4" ratchet wrench for quick, tool-assisted setup

Will this fit my trailer or RV with tandem wheels?

It’s engineered specifically for tandem-axle setups with wide tire spacing commonly found on travel trailers, fifth wheels, and larger RVs. Measure the distance between tire contact points to verify the X-Chock’s extended reach matches your vehicle’s configuration.

• Designed for wider-than-standard gaps between dual tires
• Two-chock kit covers both sides of a tandem axle or separate axles as needed
• Works on a variety of tire sizes—check clearance and footprint before purchase

How easy is installation and removal during campsite setup?

Setup is straightforward: position the chock between the tires, use the included ratchet to expand to the desired pressure, and optionally secure with a padlock (sold separately). Removal is simply the reverse—release the ratchet and withdraw the chock—making it fast to deploy during arrivals and departures.

• Includes a comfort-bumper 3/4" ratchet wrench for faster adjustments
• No permanent modifications or mounting required
• Compact design stores easily when not in use

What materials and durability features should I expect?

The X-Tended Fit X-Chock is fabricated from heavy-gauge steel with a zinc coating to reduce rust and extend service life in marine and roadside environments. The design focuses on ruggedness for repeated use and stable performance over time.

• Heavy-duty steel construction for structural strength
• Rust-inhibitive zinc coating for outdoor resistance
• Limited lifetime warranty provides manufacturer-backed support

Who is this for: The BAL X-Tended Fit X-Chock is intended for RV owners, travel trailer and fifth-wheel users, and anyone operating tandem-axle trailers with larger-than-normal tire spacing who want a portable, reliable method to reduce vehicle movement at campsites, loading areas, or during maintenance. If you frequently park on uneven ground, experience noticeable sway while inside your rig, or need a quick-deploy stabilization solution that doesn’t interfere with tire flex, this model is a practical choice.