Check My Fit Single Trail

Downball Weight Calculator

downball weight will be in kg

Follow the steps in the calculator below to work out the total downball weight for your chosen rack and bikes. Compare this figure with the downball weight capacity for your towbar to ensure you are within manufacturer specifications for your vehicle.

Refer to each product’s wheel basket and overall capacity for acceptable rack loads.
Recommended downball weight must not exceed your vehicle’s downball capacity – refer to vehicle and/or towbar user manual for details on downball capacities.

    This weight includes a safety factor of 1.5x the total weight of bikes and rack combined.

    This weight includes a safety factor of 1.5x the total weight of bikes and rack combined.

    This weight includes a safety factor of 1.5x the total weight of bikes and rack combined.

    This weight includes a safety factor of 1.5x the total weight of bikes and rack combined.

    This weight includes a safety factor of 1.5x the total weight of bikes and rack combined.

    This weight includes a safety factor of 1.5x the total weight of bikes and rack combined.

    This weight includes a safety factor of 1.5x the total weight of bikes and rack combined.

    This weight includes a safety factor of 1.5x the total weight of bikes and rack combined.

    This weight includes a safety factor of 1.5x the total weight of bikes and rack combined.

    This weight includes a safety factor of 1.5x the total weight of bikes and rack combined.

    This weight includes a safety factor of 1.5x the total weight of bikes and rack combined.

    This weight includes a safety factor of 1.5x the total weight of bikes and rack combined.

    This weight includes a safety factor of 1.5x the total weight of bikes and rack combined.

    This weight includes a safety factor of 1.5x the total weight of bikes and rack combined.

    This weight includes a safety factor of 1.5x the total weight of bikes and rack combined.

    Single Trails

    Car Model Modifications

    rack modifications

    Land Rover Discovery Series 4

    Single Trails

    Cast 50mm Hitch

    Due to the hollow section at the top of the Land Rover Discovery Cast 50mm Hitch, the RFS Integrated Anti-Wobble System does not engage into the empty space. A custom hitch pivot is required.

    Rear Mounted Spare Wheel
    All of our Rack models fit behind a Standard rear mounted spare wheel with No-Modifications. If you have a larger spare wheel, please get in touch with dimensions.

    Rack Models

    • SL - Modifications Req'd See Below
    • EZ RFS - Modifications Required See Below
    • Super RFS - Modifications Required See Below

    Modification Description
    The LRD Hitch Modification removes the In Built Anti-Wobble Mechanism and modifies the hitch to suit the 50mm Cast Hitch found in the LRD Series 4.  External Anti-Wobble Systems are provided in leu.

    How to Order

    When ordering. Include your vehicle make and model in the "Shipping Notes".  You will be provided with the modifications at no extra charge.  The parts are bolt on and can be changed out at a later stage for a fee if required. (Note: Super RFS changes are not reversable)

    Land Rover Defender - 2020 to current (L663)

    Rear Mounted Spare Wheel

    Due to the rear mounted spare, a slightly longer tongue tube is required to achieve adequate clearance.

    Rack Models

    • SL - 150mm Extended Tongue
    • EZ RFS - 50mm Extended Tongue
    • Super RFS - 50mm extended tongue & LRD20 Side Plates

    How to Order

    When ordering. Include your vehicle make and model in the "Shipping Notes".  You will be provided with the modifications at no extra charge.  The parts are bolt on and can be changed out at a later stage for a fee if required.

    Mitsubishi Pajero Sport - 1996 to 2021

    Shallow Hitch Receiver

    The depth of the hitch receiver on this range of Pajero Sports has been reduced (35mm from centre of hitch pin hole to end of receiver) to cater for the spare wheel mounted to the underside of the car. The RFS Integrated Anti-Wobble System does have enough depth to engage.

    Rack Models

    • SL / EZ RFS / Super RFS - Modifications Required See Below

    The MPS-21 Modifications Include

    • Reduction in size of the tongue tube to cater for the shallow hitch depth
    • Replacement of Integrated Anti-Wobble mechanism with:
      • Anti-Rattle ⅝” Hitch Pin
      • External Anti-Wobble Plate

    How to Order

    When ordering. Include your vehicle make and model in the "Shipping Notes".  You will be provided with the modifications at no extra charge.  The parts are bolt on and can be changed out at a later stage for a fee if required. (Note: Super RFS changes are not reversable)

    Mitsubishi Pajero Sport - 2022 to current

    Shallow Hitch Receiver

    The depth of the hitch receiver on this range of Pajero Sports has been reduced (45mm from centre of hitch pin hole to end of receiver) to cater for the spare wheel mounted to the underside of the car.

    The tongue tubes on our standard.

    Rack Models

    • SL / EZ RFS / Super RFS - Modifications Required See Below

    The MPS-22 Modifications Include

    • Reduction in size of the tongue tube to cater for the shallow hitch depth
    • Modifications to the RFS Integrated Anti-Wobble mechanism to suit shallow hitch

    How to Order

    When ordering. Include your vehicle make and model in the "Shipping Notes".  You will be provided with the modifications at no extra charge.  The parts are bolt on and can be changed out at a later stage for a fee if required. (Note: Super RFS changes are not reversable)

    Mitsubishi Pajero

    Rear Mounted Spare Wheel

    The RFS range has been designed to cater for the spare wheel mounted to the back of the Pajero Range, when the spare wheel is mounted in the top position. The SL Range sits closer to the vehicle so requires an extended tongue. Specific mounting plates are required when using the Super RFS.

    Rack Models

    • SL - 100mm Extended Tongue
    • EZ RFS - No Modifications Required
    • Super RFS - Pajero Mounting Plates

    How to Order

    When ordering. Include your vehicle make and model in the "Shipping Notes".  You will be provided with the modifications at no extra charge.  The parts are bolt on and can be changed out at a later stage for a fee if required.

    Toyota Landcruiser 200 Series

    Drop Down Tail Gate

    To allow the tail gate to open all the way some modifications are required. Note, the SL range has been designed to sit as close to the rear of you vehicle as possible, which can impede access.  Extended tongues provide decent access and you will still have your rack close to the vehicle as possible.

    Rack Models

    • SL - 150mm Extended Tongue
    • EZ RFS - 50mm Extended Tongue
    • Super RFS - In Line Swing Arm

    How to Order

    When ordering. Include your vehicle make and model in the "Shipping Notes".  You will be provided with the modifications at no extra charge.  The parts are bolt on and can be changed out at a later stage for a fee if required. (Note: Super RFS changes are not reversable)

    Toyota Landcruiser 300 Series

    Wider Hitch Pin

    The 300 Series Landcruiser requires a longer hitch pin. The V3 Pivot uses a ½” Hitch Pin with a useable length of 75mm instead of the standard ⅝” Hitch Pin supplied with your cruiser.  A longer useable length hitch pin is required.

    How to Order

    When ordering. Include your vehicle make and model in the "Shipping Notes".  You will be provided with the hitch pin at no extra charge.

    Ford Ranger

    Shallow Hitch

    The new Ford Rangers are notorious for having a shallow hitch. Our entire RFS range have been designed to suit all Ford Ranger models.

    No modifications required.

    Nissan Patrol - GQ/GU

    Rear Mounted Spare Wheel

    Due to the rear mounted spare and the compact nature of our SL Range, a slightly longer tongue tube is required to achieve adequate clearance with the SL  Rack Range.  Note: RFS Range Fits with no modifications.

    Rack Models

    • SL - 100mm Extended Tongue
    • EZ RFS - Modifications Required
    • Super RFS - No Modifications Required

    How to Order

    When ordering. Include your vehicle make and model in the "Shipping Notes".  You will be provided with the modifications at no extra charge.  The parts are bolt on and can be changed out at a later stage for a fee if required. (Note: Super RFS changes are not reversable)

    Single Trails

    RACK WEIGHT

    2 BIKE3 BIKE4 BIKE5 BIKE6 BIKE
    EZ-RFS25kg30kg35kg40kg45kg
    SUPER-RFS31kg46kg51kg56kg61kg
    SL10021kg25kg29kg33kgNA
    SL150NANA33kg36kg40kg

    Canopies & Rear Mounted Spare Wheels

    Single Trail

    Unless mentioned above, if your vehicle has a fiberglass canopy and/or standard size, factory fitted, rear mounted spare wheel and factory tow bar, the entire RFS range will fit your vehicle. This includes the Toyota Landcruiser, Prado and Nissan Patrol range.

    Custom Setups

    Single Trail

    For custom setups including large rear mounted spare wheels, steel canopies and trays you can download the clearance dimensions to check fitment. Alternatively, fill in the form below and request a fitment check (all measurements in mm taken from the center of the hitch pin hole).

      Dimensions (mm)

      Vehicle Information

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