ROCK OFF® Stone Guard Brush for 4WD, Caravan, Camper Trailer & Boat
Love exploring the Australian Outback but worried about stone damage to your vehicle or caravan?
Discover ROCK OFF®, the Australian-made Stone Guard Brush Product designed to protect caravans, camper trailers, motorhomes, towing vehicles and more.
Busy Bee Brushware has developed the ROCK OFF® Caravan Stone Guard Brush to help you minimise vehicle damage from stone and rock kick-up. Fit to your vehicle or caravan for all-round protection. Designed for rugged Australian conditions beyond the highway.
Say “ROCK OFF!” to stone damage on your vehicles
Proudly Australian
ROCK OFF is a licenced Australian Made Campaign product, manufactured in Victoria by Busy Bee.
Compact design
Designed so you can access your vehicle and boot as normal, without the need to remove ROCK OFF.
Total protection
Multiple options to mount on your 4WD vehicle or towed vehicle, or both, for maximum protection.
Built to last
Heavy-duty HDPE backing, durable polypropylene bristles, stainless steel rails and mounting brackets.
Australia-Wide flat rate shipping
We can ship to almost any location in Australia and offer a flat-rate cost on shipping.
Choosing The Right Product: Important Considerations
Follow our five-step process to order your ideal ROCK OFF Towing Brush Strip Kit.
Step 1: Where its going…
Before ordering your ROCK OFF® Stone Guard, it is important to consider where and how you are going to mount your Brush.
Vehicles come in all shapes and sizes, which is why ROCK OFF comes in a range of ready-to-install Mounting Kits for convenient fitting on your towing vehicle, caravan or trailer. Time to get under your 4WD or caravan to get a closer look!
Remember, there is no “one size fits all” as every vehicle set up is individual. Our range is designed to cover most vehicles, but you may need to consider discussing your set up with your local vehicle modification specialist, or caravan service centre.
Step 2: Weight considerations
You will need to allow for weight limits for your towing vehicle, adding a ROCK OFF Caravan Stone Guard Brush will add additional weight to your set up. However, you will find that your ROCK OFF weights are lighter than other products, and also provides better air-flow under your vehicle.
Additional weight: For our Stainless Steel Rails add another 2.5kgs, and a set of Stainless Steel brackets allow another 1.5kg to your set up. (weights are approx.)
Need more help around vehicles weights and Australian Standards? Consider getting in touch with your local caravan service centre for advice or click here for some information from Towing Weights Australia.
Disclaimer: It is your responsibility to ensure this product is suitable for fitment and use with your intended towbar and vehicle.
Step 3: Measure your mounting height
Take your height measurements at a time when your towing vehicle and caravan or trailer is fully loaded — this will ensure any suspension systems you have in place are considered.
Measure from the ground to the mark where the top of your ROCK OFF Mount will be located. Deduct 100mm for road clearance and a further 50mm allowance for the backing of the brush and Mounting rail, total 150mm. This will provide the ideal bristle length option for your vehicle.
Remember that our drop down options shows the “bristle length”, so you will need to allow 50mm for the brush backing when you choose. If unsure, choose your ROCK OFF at the shorter measurement – you can always lower your fitting later. If your ROCK OFF bristle is too long, it is difficult to trim
(Note: Insufficient clearance may cause dragging on rough or rutted road surfaces and reduce ROCK OFF’s lifespan. Excessive clearance may reduce ROCK OFF’s effectiveness.)
Step 4: Exhaust considerations
Keep exhaust flow and heat away from ROCK OFF. This product performs best when installed with plenty of distance away from your vehicle’s exhaust outlet. ROCK OFF is made from tough Polypropylene fibre, but it can be damaged by exhaust heat build-up.
Exhaust Shield and Extension Kits are available to allow free flow of your exhaust heat away from your towing vehicle. Alternatively, consider modifying your vehicle’s exhaust system to a side-exit style.
Recommended mounting positions:
- For towing vehicles with a straight exhaust outlet: Consider mounting ROCK OFF underneath the exhaust pipe.
- For towing vehicles with a downward-facing exhaust outlet: Consider our Exhaust Extension Kit. Particularly if your exhaust outlet is less than 450mm from your intended ROCK OFF Mounting.
Step 5: Other considerations
Aftermarket accessories (mudflaps, chains, Anderson plugs, auxiliary fittings etc) may need consideration when determining the mounting height and bristle length of your ROCK OFF.
Rigid-style mud flaps are recommended if using in conjunction with ROCK OFF. Flexible and/or chain-attached mud flaps are not recommended as these can cause stones to bounce underneath ROCK OFF and strike your vehicle.
Check access to accessories and auxiliary fittings such as Anderson plugs and reversing lights. These accessories may have components or cables which may impact your mounting position. If possible, mount ROCK OFF underneath or above these fittings to ensure easy access.
Mounting Kits to suit most vehicles, vans and trailers
Suits all DIY skill levels
Whether you’re a born handyperson or are just looking for a quick and convenient install, we have a Mounting Kit solution to suit you.
Enjoy our quickest-ever install with the Hitch Kit — simply slide it onto your tow hitch, lock it in place and hit the road!
Why Choose ROCK OFF®
Protect your investments
We know how much off-roading fans and outback explorers adore their caravans, campervans, and boats. Why not add some protection to your investments and greatly reduce the risk of stone damage?
The quiet brush stone guard solution
Our innovative bristled design is made to be super effective at guarding against stones without creating a loud racket. So it won’t drown out your favourite road trip tunes with annoying thudding from stone impacts.
Doesn’t get in your way
Unlike some stone guard systems, ROCK OFF doesn’t occupy a lot of space in your towing setup. When it’s installed you can still move freely around and between your vehicles and enjoy normal access to your boot. No more fiddling around removing stone guard hardware after a long drive on the dirt.
What our customers say...
Product FAQs
Can’t find what you’re looking for? Take a look at our handy Help Centre for additional information such as Common Questions, Installation Videos and Blog articles.
Our Rails and Brackets are made from heavy duty Stainless Steel to handle the rigours of the dirt highways. Prevent nasty dings and scratches to the front of your caravan and reduce the chance of stone bounce back taking out the back window of your vehicle. ROCK OFF also protects the underside of your caravan, including pipe-work, tanks, electrical, and your valuable suspension.
ROCK OFF’s brushes are lighter than mud flaps, allowing greater airflow and creating less drag. Mudflaps tend to bounce stones off in unpredictable directions, whereas ROCK OFF’s bristles absorb the impact of the rocks, taking the force out of them.
Once installed, ROCK OFF® stays out of your way so you can access all areas of your vehicle as normal, including the boot.
I’ve purchased Rock Off to help protect the underside of my caravan from stone damage as I expect to undertake some pretty serious outback journeys in the near future. Whilst I have Stone Stomper to protect the front of my caravan, that product doesn’t necessarily reduce stones from damaging under my van and this is where Rock Off will assist. Customer service with the Busy Bee Brushware team was excellent and the product was very easy to install under my caravan using a length of angled aluminium from Bunnings.