FAQ

Not all bike carriers are made equal, and some are more suited for the slide and tilt function of the 2UP rack compared to others. The Rockymounts Brass-Knuckles / Rhino Rack Hybrid is 4TK Racks' number one pick! Very sturdy (Bike Weight rating of 21kg), mounts easily to the 2UP T-Slot tracks, no frame contact (holding only onto the wheels), and VERY quick and easy to use with the 2UP Rack in the tilted/deployed position. You'll see the Brass-Knuckles Rack used in most of 4TK Racks' marketing videos. With the 21kg rating, it can be used with most E-bikes too. The Rhino Rack Hybrid is almost identical to the Brass-Knuckles, sharing all components except the locking mechanism onto the top of the bike's front wheel. Rhino Rack have instead used the locking mechanism from Rockymounts Tomahawk Rack, which is the better locking mechanism in our opinion. The 'Brass-Knuckle' handle portion of the Brass-Knuckle Rack comes a little too close to the Fork Lowers on bigger bikes for my liking, while the Rhino Rack Hybrid doesn't have this 'feature', and leaves plenty of room. For that reason, the Rhino Rack Hybrid is just a smidge better. For both the Brass-Knuckles and Hybrid, weight is its biggest downfall, weighing in a 7.6kg, which is a consideration for when you're wanting to run 4x Bikes (see weight section). This is fairly on par though with any of the non frame contact bike carriers. The Thule Upride 599 weighs 7.7kg. It's also on the more expensive end of roof mounted bike carriers. #RBC050 - Hybrid Bike Carrier | (rhinorack.com) If you're looking to run 4x identical racks that function well and are good looking, the Thule Proride 598 is a good option. They're relatively light weight at only 4.2kg (see weight section), and work nicely with the 2UP rack in its tilted/deployed position. They're easy to fit too with 4TK Racks' adaptor kit. The key downside of the Proride is that they make contact on the bike frame, but not everyone cares about a few blemishes on their frame, and also that it only has a rating of 17kg. For ultra-light weight, it's hard to beat the Thule Freeride 532, weighing in at only 3.2kg. The 4TK Racks promo vehicle has 2x Brass-Knuckles as we like them so much, and 2x Thule Freeride to help keep the weight down. This is sufficient to carry the 4x bikes we want and still stay under the legal 100kg rating for the Ranger. The Thule Freeride is easy to mount to the 2UP Rack with 4TK Racks' adaptor kit, but 4TK Rack recommend you beef up the wheel holders to assist with loading when the 2UP Rack is tilted (also included in the adaptor kit). The main annoyance with the Freeride in our experience is if you're frequently running different bikes. The clamp arrangement has to be wound in/out to suit the frame, and it's just annoying to do to suit the different frame sizes. Otherwise, we love it - simple and cheap, but still plenty robust and effective. The Rockymounts Tomahawk is similar to the Brass-Knuckles, but isn't as slim line (it is cheaper though). It mounts easy enough to 2UP racks with the right adaptor kit too. It only has a bike rating of 18kgs vs the Brass-Knuckles/Hybrid's 21kg though. We've found the Thule Upride 599 works quite well when loading in the 2UP Rack's Tilted position, and it's got probably the best locking mechanism of the lot, but when mounting with their T-slot system, we've found there is a lot of 'flex' in the base plate, and the bike wobbles around a lot when driving, even though this is how Thule have specified it to be clamped. If using the clamp system where it clamps around the Roof Rack Cross Bar, it picks up on 4 points across the Bike Rack base, and significantly stiffens up their rack, but unfortunately that clamp around system can't work with the 2UP rack. For the 2 bolt T-slot arrangement, Thule have a very thorough test program and you can be sure it's not going to fall off, but it is still very unnerving. The Yakima Highroad looks to be a good contender, but 4TK Racks have not yet tested it. The Yakima Frontloader uses a clamp around system which won't work with the 2UP Rack. 4TK Racks are presently designing adaptors that will allow them to mount to the 2UP, but know that the Frontloader will have to sit up relatively high off the 2UP Rack. Summary: If you're running only a couple of bikes, get the Rhino Rack Hybrid (or Brass-Knuckles) - it's a no brainer. If you're wanting to run 3-4 bikes, consider getting 2x Rhino Rack Hybrids and 2x Thule Freerides, or getting 4x Prorides or 4x Freerides if you want all Bike Racks to be the same.

You betcha! Being Australian made is very important to 4TK Racks. With the exception of things like fasteners and bearings etc, all components are 100% Australian designed, sourced, and manufactured. All aluminum extrusion is sourced from Ullrich, and then the racks are then manufactured in Canberra and Jindabyne, and then assembled in Jindabyne. We believe that people are prepared to pay a little premium knowing that they're supporting the local economy, and receiving a quality product

YES! The 2UP Racks have been designed to, and have been load tested to AS1235:2000 & ISO/PAS 11154:2023. This requires a series of tests to be completed, all of which passed: Vertical Lifting Force – 2500N (254kg). Longitudinal Force – 2000N (204kg). Longitudinal Force at 20deg - 2000N – (204kg). Lateral Force - 1000N (102kg) Lateral Force (opposite direction) - 1000N (102kg) For the above tests, that is per 2UP Rack at 50kg rating. 2x 2UP Racks can be installed per cross bar. Vertical Load Test - hold for 10mins. No plastic deformation observed Note regarding vertical load test: This test is to reflect large the wind forces exerted on large surfboards or similar with a large surface area overhang. This test considers roof racks that are the full width of the car with a 100kg test load pushing down against the vertical load. With only a 50kg load rating spread over the two cross bars, this test is 254kg (2000N) on the front cross bar member only - effectively an 8x overload test. The flex observed is actually primarily in the 3rd party cross bar (conventional roof rack) member - it bends over 20mm! The 2UP Rack is designed to be able to flex at this joint to accommodate any misalignment between the two cross bars. With the load removed, the 2UP Rack (and 3rd party cross bar member) returned to its relaxed state, and functions remain unaffected and no deformation observed - pass! (Full youtube videos will be uploaded in time. Lateral Load Test - 3.04mm deflection. Under 10mm is considered a pass Lateral Load Test Opposite Direction - 3.94mm deflection. Under 10mm is considered a pass Longitudinal Test at 20deg. 2.94mm observed at 1000N (Under 10mm is considered a pass). 8.89mm observed at 2000N (Under 50mm is considered a pass)

Built completely of aluminium extrusion and stainless steel fasteners, you can be sure 4TK's racks will stand the test of time, even if you live by the coast. All exterior aluminium extrusion is either anodized in black or clear, with anodizing being far superior to powdercoat when dealing with harsh elements. Even the sliding track mechanism was chosen because of its corrosion resistant materials - anodized aluminium track with nylon coated wheels and stainless bearings, compared to your conventional telescopic track slides which are typically just zinc coated steel.

We aim to dispatch your order within 5 business days of full payment being received for in-stock items. You’ll receive email notifications and tracking number so you can follow the delivery progress.

Special Orders are still standard sizes, but not as common. We have drawings, templates, CNC code, etc already prepared. These orders are typically filled within 2 weeks. Custom Orders are for when the customer wants something beyond the standard sizes. The additional fees cover time spent making new drawings and templates, and for updating the CNC code. These orders are typically filled within 2-4 weeks.

The 2UP Rack will fit any car with a minimum distance of 780mm between the Cross Bars. This is primarily limited by the minimum distance required by 3rd party equipment, as the 2UP Cross Bars nest inside the standard Cross Bars. 4TK Racks offer 3 standard sizes, 780mm, 835mm, and 875mm. 875mm results in 700mm between the nested 2UP Cross Bars, which is the ideal width. That all said, 4TK Racks are able to make both custom widths and lengths to suit almost any car. At present, the 2UP will not fit cars that have side obstructions between the Cross Bars or somekind of platform. 4TK Racks are currently working on a versions that sits on top of the Cross Bars. Although less slimline, it will fit cars with existing Platforms, obstructions between the Cross Bars, or cars with less than 780mm between the Cross Bars. Here is a list of common Cross Bars, their widths, and recommended widths for the 2UP Racks. 1250mm - 2x625mm or pair 500mm with 750mm. 1250mm width is the most common width typically found on medium SUVs and Dual Cab utes. 1375mm - 2x687mm or pair 625mm with 750mm. The 2nd most common width. Found on larger SUVs, and also common on any Dual Cab utes. 1500mm - 2x750mm 1650mm - 2x750mm or custom. 2x 750mm will have a space/gap between the 2x 2UP Racks 1800mm - 2x750mm or custom. 2x 750mm will have a space/gap between the 2x 2UP Racks

No yet. The plan is for V2 to have a custom extrusion that will work with the 20mm T-Slot fasteners typical of Thule and RhinoRack, but until then, the 2UP Sport rack utilizes standard 40 Series T-Slot Aluminium Extrusion instead, and its associated fasteners. The 40 Series T-slot is industry standard in everything but Roof Racks, and there are endless accessories. Fitment kits are available in the store for all your common Bike Racks and other mounting equipment. Note that Thule use a fine thread on their fasteners, and will not work your standard coarse thread. Again, fitment kits are available. Alternatively, if you have the tools and skill, you can cut down your existing fasteners to suit. When the V2 racks are released with custom extrusion, kits will be available to upgrade the earlier generation racks.

The maximum overhang permitted on a light rigid motor vehicles is 60% of the wheelbase or 3.7 metres, whichever is the lesser, measured from the rear overhang line. The rear overhang line is your rear axle. This factors any load, including any bikes hanging from those vertical racks. Get out your tape measure, you'll be surprised at what you find!! Carrying bicycles on motor vehicles (nsw.gov.au) Light vehicle dimension limits (nsw.gov.au)

Thru Bars work well with 4TK Racks. Lengths are mostly standardized across manufactures. Note that the measured width does not include the end caps on the Crossbars - 4TK Racks account for this. Here is a list of common Cross Bars, their widths, and recommended widths for the 2UP Racks. 1250mm - 2x625mm or pair 500mm with 750mm. 1250mm width is the most common width typically found on medium SUVs and Dual Cab utes. 1375mm - 2x687mm. The 2nd most common width. Found on larger SUVs, and also common on any Dual Cab utes. 1500mm - 2x750mm. Found on very large SUVs. 1650mm & 1800mm. These are exceptionally long. 750mm versions can be used, but suggest going custom for these widths. 4TK Racks will also work with some Flush Bars, where the foot of the cross bar is also the end cap. However, as the Flush Bar typically sits ~5mm above the actual Crossbar, a spacer is usually required to lift up the 2UP Sport Rack. Sometimes, these types of Cross Bars also have a bow in them. In this case, the same spacer will also resolve this. Note that the tilt function of the 2UP Sport Rack still needs to clear the Crossbar Feet and the side of the car. With all that, there is far more ambiguity with the widths of Flush Bar mounts. You typically need ~130mm past each of measured bar in the middle. The good news is that regardless of what the Cross Bar widths are (usually something random like 1037mm), they'll still typically work with the same combos above - 2x625mm, 2x687mm, or 500mm/750mm. Best to contact 4TK Racks for confirmation.

Mostly no! In the instance that the distance between the Cross Bars can suit any of the standard sizes, and that the Cross Bars are generally in the same plane, the 2UP Rack should bolt on just like any other Roof Rack accessory. Custom fits can still be installed by the user, just need to make sure your measurements are correct! If the Cross Bars are out of plane to each other, you'll mostly be able to correct this with some tapered spacers available in the 4TK Store. Some Cross Bars have a 'bow' in them, which will also need to be corrected with spacers. Again, this can typically be rectified by spacers available in the 4TK Store. Some vehicles have just 'weird' Roof Rack setups that might require more 'professional' help. Generally though, the average person can install these without difficultly, and 4TK Racks are available via phone, email, chat any time for assistance. If you're in or near Jindabyne, 4TK Racks is happy to complete the install for free.

Yes, so long as each individual 2UP rack does not exceed 50kg, and the 3rd-party Bike Carrier is sufficiently rated to carry the desired bike. The Rhino Rack Hybrid or Rockymounts Brass-Knuckles are both rated to carry 21kg and secure the bike by the wheels only - no frame to carrier contact. 21kg is sufficient to carry most E-bikes with the battery removed, and in many cases these days, sufficient to carry them with the batteries still in. Some of these SL (super light) E-bikes are coming in under 16kg!

Every vehicle has a max load rating for the roof, and that rating includes all equipment - cross bars, accessories, brackets etc, as well as the load. Most SUVs/Utes have either 75kg, 80kg, or 100kg rating and should be specified in the owner's manual. Some models have ratings in excess of 100kg, but these loads are spread over more than 2x cross bars. Relevant to 4TK Racks, the maximum per any singular cross bar is 50kg, and as the 2UP Sport Rack uses 2 cross bars, you'll always be limited to 100kg, even if the vehicle has a higher rating. Some 100kg Roof Rating examples: Yakima 1375mm Racks = 5.8kg for the pair, inclusive of mounting hardware 2UP Rack, 687mm width, 875mm length = 11.5kg each Total = 5.8 + (11.5 x 2) = 28.8kg Rockymounts BrassKnuckles = 7.6kg each Thule Freeride = 3.2kg each Thule Proride = 4.2kg each Assuming 100kg roof rating, and with 4x BrassKnuckles, you're at 28.8kg + (7.6kg x 4) = 59.2kg, leaving you with a budget of 40.8kg, or an average of 10.2kg per bike if loading 4x bikes. Perhaps okay with 4x Road Bikes or XC bikes, but not going to work with your typical enduro bike. With the same 100kg roof rating, and with 4x Thule Proride, you're at 28.8kg + (4.2 x 4) = 45.6kg, leaving you with a budget of 54.4kg, or 13.6kg per bike if loading 4x bikes. This satisfies most Trail and Enduro Bike combos. With the Thule Freeride, you'll have a budget of 58.4kg or 14.6kg average if loading 4x bikes. This would satisfy most enduro combos. Or, if you're running with 3 or less bikes, you've got more scope to load whatever bikes up there. Assuming you're still running two 2UP Racks, you're still at 28.8kg (1375mm width) + 3x 7.6kg (BrassKnuckles) = 51.6, leaving a budget of 48.4kg or average 16.1kg. Doing the same again with Thule Proride racks, you'll have a budget of 58.6kg, or 19.5kg average per bike. Lastly, you can always run a combination of racks, as per the demonstration vehicle in the pictures. We're quite fond of the Rockymounts BrassKnuckles as it has no frame contact, very sturdy, still works well when tilted, and very slim line. Unfortunately, it is quite heavy! So, we run 2x Brass Knuckles and 2x Thule Freeride, which leaves a budget of 57.2kg. This is enough to run 3x enduro bikes and 1x XC bike or kids bike. Equation: Weight of Racks and Cross Bars 28.8kg + 2x7.6kg + 2x 3.2kg = 42.8kg Bike weight budget 100kg-42.8kg = 57.2kg 3x Enduro and 1x XC up top 3x15kg + 1x12kg = 57kg (0.2kg left over!)

Every vehicle has a max load rating for the roof, and that rating includes all equipment - cross bars, accessories, brackets etc, as well as the load. Most SUVs/Utes have either 75kg, 80kg, or 100kg rating, and should be specified in the owner's manual. Some models have ratings in excess of 100kg, but typically these loads are spread over more than 2x cross bars. Relevant to 4TK Racks, the maximum per any singular cross bar is 50kg, and as the 2UP Sport Rack uses 2 cross bars, you'll always be limited to 100kg, even if the vehicle has a higher rating. Relevant to this article, some 80kg Roof Rating examples: Yakima 1250mm Racks = 5.8kg for the pair, inclusive of mounting hardware 2UP Rack, 625mm width, 780mm length = 10.5kg each Total = 5.8 + (10.5 x 2) = 26.8kg Rockymounts BrassKnuckles = 7.6kg each Thule Freeride = 3.2kg each Thule Proride = 4.2kg each Assuming 80kg roof rating, and with 3x BrassKnuckles, you're at 26.8kg + (7.6kg x 3) = 49.6kg, leaving you with a budget of 30.4kg, or an average of 10.13kg per bike if loading 3x bikes. Perhaps okay with 3x Road Bikes or XC bikes, but not going to work with your typical enduro bike. With the same 80kg roof rating, and with 3x Thule Proride, you're at 26.8kg + (4.2 x 3) = 39.4kg, leaving you with a budget of 40.6kg, or 13.5kg per bike if loading 3x bikes. This satisfies most Trail and XC Bike combos. With the Thule Freeride, you'll have a budget of 43.6kg or 14.4kg average if loading 3x bikes. This would satisfy most enduro combos. Or course, if you're running with 2 or less bikes, you've got way more scope to load whatever bikes up there. For medium sized SUVs, you could also run a 2UP with a 1UP (coming soon) combo which would give you an additional ~6kg budget to share across the 3 bikes.

Warranty period - 3 years for all components from date of purchase 4TK Racks warrants the original buyer, only when purchased new via 4TK Racks direct, or via authorized 4TK Racks resellers and distributors, from date of retail sale and cannot be transferred. Product is warranted against defects in material or workmanship that cause the product to not perform as designed, to the extent that 4TK Racks will repair or replace any parts which are found to be defective. It is at the discretion of 4TK Racks if a repair will be made or a replacement issued once the product is deemed to be a genuine warrantable claim by 4TK Racks, or 4TK Racks representative. All warranty claims can be submitted via email through 4TK Racks website. Proof of original purchase must be presented upon request. If products are required to be returned to 4TK Racks, 4TK Racks are not responsible for freight costs. If requested, 4TK Racks can arrange return freight. Costs involved will be invoiced to the buyer. 4TK Racks is not responsible for damage or loss during freight. Instances whereby the warranty does NOT apply: Incorrect fitment or installation Damage caused to components through fitment error Acts of neglect or misuse are evident Product has been modified without 4TK Racks' consent Used beyond expectations or specified load rating Our goods come with statutory guarantees that cannot be excluded under Australian Consumer Law. You are entitled to a replacement or refund for a major failure and for compensation for any other reasonably foreseeable loss or damage contingent on that failure. You are also entitled to have the goods repaired or replaced if they fail to be of acceptable quality even if the failure does not amount to a major failure.

Spares are available for all components in the store, including some aluminium extrusion. If not in the store, simply email 4TK Racks, and we'll be able to provide the part(s) you need. This means you can convert your rack to a different width or length if required when changing to a different car or similar.

Returns for unused assemblies and components will be accepted up to 30 days from date of retail sale. Returns will be accepted if packaging has been opened, but returns must be in as new condition. 4TK Racks will request photos/proof prior to shipping/acceptance. Return shipping costs are to be covered by the buyer. If requested, 4TK Racks can arrange return freight, with all costs involved invoiced to the buyer. 4TK Racks are not responsible for damage or loss during freight. Our goods come with statutory guarantees that cannot be excluded under Australian Consumer Law. You are entitled to a replacement or refund for a major failure and for compensation for any other reasonably foreseeable loss or damage contingent on that failure. You are also entitled to have the goods repaired or replaced if they fail to be of acceptable quality even if the failure does not amount to a major failure.