Four Bike Rack Assembly | Extended | 25 Degree + PBT

$1,689.00

This bicycle carrier assembly is inclusive of the Vehicle Mount System. Everything you need to get travelling with bikes on the back of the car. If you would like a Drawbar Mount System, Please contact our helpful sales team.

  • Suitable for most passenger vehicles with no rear mounted spare wheel
  • 60 Seconds load/unload all four bikes (no straps or tie downs)
  • Quickly pivot down for convenient rear vehicle access
  • Attach/detach main beam in seconds
  • E-Bike Friendly
  • 100% Australian owned and manufactured from 100% Australian steels and materials.
  • Lifetime Warranty

Non standard vehicle, rear options fitted or you’d just like us to assist? Let us configure for you! 

Vehicle Make/Model *
Wheel Support Cradle Size 1 *
Wheel Support Cradle Size 2 *
Wheel Support Cradle Size 3 *
Wheel Support Cradle Size 4 *
Extra subtotal:$0.00
Illustrating that any wheel width can be carried in our wheel support cradle

Support and Stabilise Each Wheel

• From 18mm wide through to 3.1″ MTB and fat tyres
• Each wheel supported and stabilised at four contact points per wheel tread for maximum stability
• Protect fragile carbon fibre rims if a tyre goes flat

Harsh terrain demands that each wheel is supported by iSi’s unique CNC complex-contour wheel support cradles that also stabilise each wheel at up to four contact points per tyre.

From narrow 18mm wide time trial tyres through to the fattest of MTB tyres, the iSi cradle’s unique design continually centres each wheel eliminating movement and vibration for the safest travel possible.

If a tyre does go flat during the journey, the wheel remains stabilised and protected as the tyre wraps around and protects fragile carbon fibre rims.

iSi wheel support cradles also eliminate bearing fretting issues caused by traditional platform and vertical shuttle racks when operated in off-highway conditions.

Regardless of how rough the track, the bikes are protected. Each bicycle is cradled securely with all loads spread through wheels that are inherently stabilised to eliminate harsh vibrations and loads on the bicycle frame, wheel and head stem bearings.

Horizontal Adjustment
• Offset wheel cradle design to keep bicycles within silhouette of vehicle
• Adjust wheel cradles to suit different bicycl wheel bases
• Small clearance adjustments

Complete freedom to position adjacent bicycles regardless of individual wheelbase.

The unique iSi clever design wheel cradles cover a wide range of position adjustment that extends from offset one way, precisely centred through to offset the other way. In other words, two wheels may be positioned exactly side by side for zero side to side offset of the bicycles. This completely solves the problems created by other bicycle carriers that can’t be centred and leave no option but to push one bicycle to the left and the other to the right.

A neat and centred load that is as slim as possible delivers the most stable and safest dynamics for both highway and off-road travel.

Vertical Adjustment
• Unique Vertical adjustability for each wheel
• Each end of each bike has vertical adjustment
• Eliminate pesky handlebar to saddle or crank to crank clearance issues

For all combinations of bicycle sizes, each wheel support cradle delivers vertical adjustment in addition to horizontal with a vertical high and low setting.

This unique iSi feature eliminates the hassles of interference between bicycles that occur with other horizontal or vertical bicycle carriers.
For example, if a handlebar clashes with the adjacent bicycle saddle, swap the wheel cradle vertical settings to position the handlebar up and over or just below the adjacent saddle. Easy. No other bicycle carrier in the world has this clever feature available.
Adjust the vertical height of each wheel at each end of each bicycle. Sounds like a mouthful but an incredibly powerful feature to eliminate pesky clashes between bicycles.

Zero Side-to-Side Offset

• Narrow load for the greatest safety possible
• Maximum protection of bicycles from trackside obstacles
• Road-legal side overhang with modern long and slack mountain bikes

One of the important features unique to the iSi Extreme Duty Bicycle Carrier is the ability to position the bicycles side by side for absolutely zero sideways offset and the narrowest silhouette possible.

Absolutely vital when not only trickling through tight tracks, but also when squeezed through traffic and between parked cars.

The iSi bicycle carrier comprehensively solves the age old side overhang problem that plagues every other platform carrier in the world.

Relax and concentrate on the track and road ahead, safe with the knowledge that the bikes do not poke out past the sides of the car.

Zero Load Frame Support Cradle

• Gentle bicycle retention with effective vibration control
• High UV resistant with wide soft contact area
• Carbon-Safe

Designed with the sole purpose of keeping your bicycle upright – gently. A world of engineering has gone into the iSi Frame Support Cradle to deliver the world’s leading bicycle retention system.
To specifically address operation over harsh corrugations at speed, additional mass added to the contact area to eliminate high frequency vibrations.

Working in conjunction with iSi wheel support cradles that support and stabilise each wheel, iSi comprehensively eliminated the high-load issues that continue to plague other platform carriers that require high strap-down loads. Moreover, by gently supporting the frame, iSi eliminates the bearing fretting and static wear issues of wheel-only retention carriers experience. For high UV resistance, vibration isolation and a wide and soft contact, Australia’s leading rubber laboratories collaborated with iSi to design and extrude our own special section soft, supple and super durable rubber profile that is head and shoulders superior to every other bicycle carrier product on the planet. iSi’s thick, wide and flat contact area, acts as a highly effective vibration isolator and eliminates the abrasive issues of inferior round section pads.

With next to zero load, the iSi frame supports eliminate wheel and head stem fretting issues and deliver the ultimate protection for titanium, thin wall alloy and the most fragile of carbon fibre bicycle frames.

Tow Bar Pivot-Base

• 100% Australian steels for the toughest conditions and greatest durability
• Pozi-Lock over-centre latch for easy pivot operation
• Never go looking for excuses to get into the back of the car

Strong and secure manufactured from 100% Australian high-strength plate steel and tube the iSi Pivot-Base is designed and manufactured to breeze over the harshest terrain.

With the simple push on the iSi Pozi-Lock latch, the main beam section pivots down low to gently lower the load for easy access to the rear of the vehicle. Moreover, by lowering the complete assembly, the bicycles remain secured to the iSi bicycle carrier for the maximum convenience possible.

When done, raise the beam to the upright position and the iSi Pozi-Lock latch does the job of securing the load. Slip the security pin in and you’re ready again to hit the road and tracks.

Strong and secure and the most highly effective connection to vehicle tow bars. Available in a variety of iSi Pivot-Base models for the ideal configuration for your particular tow bar.

iSi Two-Bar Pivot Base

Easy Vehicle Cargo Access

 

• Pivot down with all bikes on board for the best rear access
• Lightening quick 15 seconds to access the rear
• Pull out fridge and drawers friendly for side hinged rear doors

Nice and tight to the rear of the vehicle, rock solid and 15 seconds to access to the rear cargo compartment. Easy.
The iSi Bicycle Carrier pivots down all the way right from the tow bar for the ultimate in quick and convenient access to the rear of the Prado. Completely eliminate the hassles of bicycle carriers that just tilt but obstruct the opening of side hinged rear doors. When the door’s open, drawers and fridge slide will open fully – it doesn’t get easier than that!

There’s more to travelling with bicycles than simply loading them onto a car and transporting to a destination. Eliminate hassle and never go looking for excuses.

Pivoting the four bike rack down on the back of a Prado to gain access to the boot

Massive Departure Clearance

• 25 Degree Departure Angle for the best clearance
• Tubes out of the tow bar eliminated to reverse or recover vehicle back out
• Steel plate to drag over rocks and through gullies whilst bikes protected

The best possible departure clearance provided by the four bike rack is vital to protect the bikes from below but more importantly, positioned so that the bikes are protected from above and sides as well. 100% of the driver’s concentration can then be focused on the track ahead.
However, there’s more to departure clearance than simply raising the bikes up high. With the shortest possible protrusion out of the tow bar, the whole assembly is protected when dragging the four bike rack over big rocks and deep gullies as well as those surprise high speed dips.
Moreover by eliminating tow bar protrusions that dig into the track, the car can drive back down or be recovered out of a steep river crossing without digging the four bike rack into the track.

Relax and concentrate on the track and obstacles ahead without worrying about dragging or smashing the bikes behind.

Side on image of the compact four bike rack

Thoroughly Engineered & Rigorously Tested

iSi carriers employ advanced Computer Aided Design and Finite Element Modeling and Analysis tools to ensure that the optimum structural and operational design criteria are met in a highly cost effective manner.

Then field tested over not only the harshest terrain using iSi’s fleet of dedicated off-road 4WD vehicles and caravans, but also long high speed highway travel.

Without doubt, iSi carriers deliver the ultimate in bicycle carrying performance and total peace of mind – regardless of the severity of the terrain.

Whether it be sustained high speed travel over rough washboard corrugations, rocks, soft and loose sand dunes, deep snow or running rivers, you’ll breathe easy with the knowledge that your bicycles are safe, secure and always ready for action.

Weight 24.9 kg
Dimensions 96 × 41 × 25 cm
Bicycle Capacity

1-4 Bicycles

Weight Capacity

Maximum load across all bicycles = 84 kg
Maximum weight per single bicycle = 32 kg
Maximum weight per single wheel crade = 16 kg

iSi Modular Component

Caravan Mount Compatible ✔
Vehicle Mount Compatible ✔

No Straps or Tie Downs

Carbon Safe

Rated

Off-Road + On-Road

Bike Type

Road, Gravel, CX, MTB, E-Bike

Materials

100% Australian Steels and Materials

Warranty

Lifetime