For Vehicles
Tow-Bar Mounted Bike Racks
Modular 1-4 bike racks manufactured in Australia for cars, SUVs, 4WDs and utes.
Extreme Duty Tee-Handle
$5.00
Ships in 3–5 business days
·
Made in Melbourne
- 60mm long Tee-Handle for vertical frame support sleeves
- SS304 Stainless Steel Material
- Cone Point Screw to form positive groove
- 17g Each
SS304 Stainless · Cone Point
Small Part. Big Job.
The Extreme Duty Tee-Handle is the reason iSi carriers don't need straps. The cone-point tip bites into the vertical support post and forms a positive groove that locks the post in height and prevents it from dropping or rotating under load. No slippage on corrugations, no rolling bikes, no tie-downs.
SS304 Stainless Steel
Cone Point Retention
Tool-Free Adjustment
Lifetime Warranty
SS304
Stainless Steel
60mm
Crossbar Length
17g
Weight Each
M8
Thread Size
How It Works
The Cone Point Positive Groove
Other systems let the upright post slide up and down, causing the bike to roll and rely on straps for stability. The iSi system eliminates this with a cone-point screw that forms its own groove inside the post.
Positive Retention
Bites In. Locks Solid.
When you tighten the Tee-Handle, the cone-point tip bites into the inside wall of the vertical support post and forms a positive groove. This groove locks the post at the exact height you set it, preventing any vertical movement or rotation even over the roughest corrugated roads.
- Cone point forms a positive groove on contact
- Prevents post from dropping or rotating under load
- Eliminates the need for straps or tie-downs
Effortless Leverage
60mm Crossbar. Tool-Free.
The 60mm stainless crossbar provides plenty of leverage for hand-tight adjustment. No spanners, no Allen keys, no tools required. Thread in, tighten by hand, and the cone point does the rest. To adjust height, simply loosen, reposition and re-tighten.
- 60mm crossbar for excellent hand leverage
- Completely tool-free operation
- Repositionable for different bike frame heights
Titanium Upgrades
Looking For Something Lighter?
The Extreme Duty Tee-Handle is the standard across all iSi carriers. For weight-conscious setups, we also offer two titanium alternatives.
Lifetime
Warranty
SS304
Stainless Steel
Made In
Melbourne
30 Day
Returns
Replacing a lost Tee-Handle?
At $5 each, grab a few extras and stash one in the glovebox. A spare Tee-Handle on a remote trip is worth its weight in gold.
| Specifications | Two Bicycle Carrier | Four Bicycle Carrier | Drawbar Mount Systems | Vehicle Mount Systems |
|---|---|---|---|---|
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 |
 |
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|
| Weight | 14.15kg | 25.75kg | 9.80kg – 21.20kg | 4.80kg – 6.30kg |
| Bicycle Capacity | 1- 2 Bicycles | 1 – 4 Bicycles | – | – |
| Weight Capacity |
64kg Total Load Up to 32kg per bicycle Up to 16kg per wheel |
84kg Total Load Up to 32kg per bicycle Up to 16kg per wheel |
– | – |
| iSi Modular Component | Drawbar Mount Compatible ☑
Vehicle Mount Compatible ☑ |
Drawbar Mount Compatible ☑
Vehicle Mount Compatible ☑ |
Two and Four Bicycle Carrier Compatible ☑ | Two and Four Bicycle Carrier Compatible ☑ |
| Pivot Function | ☑ | ☑ | Pivot Up & Over | Pivot down to the ground |
| No Straps or Tie Downs | ☑ | ☑ | ☑ | ☑ |
| Light Board Compatible | ☑ | ☑ | ☑ | ☑ |
| Carbon Safe | ☑ | ☑ | ☑ | ☑ |
| Rating | On–Road + Off–Road | On–Road + Off–Road | On–Road + Off–Road | On–Road + Off–Road |
| Materials | 100% Australian Made with 100% Australian steels | 100% Australian Made with 100% Australian steels | 100% Australian Made with 100% Australian steels | 100% Australian Made with 100% Australian steels |
| Warranty | Lifetime Warranty | Lifetime Warranty | Lifetime Warranty | Lifetime Warranty |
| Buyback Program | ☑ | ☑ | ☑ | ☑ |
Frame Support Cradles
iSi Frame Support Cradles are designed to keep the bicycle upright while all transport loads are handled through the Four Point Wheel Cradles. Manufactured from solid steel rod, they resist high-frequency vibrations over corrugated roads. A proprietary rubber compound developed in house features a wide, soft, and UV-resistant rubber. The result is unmatched protection for even the most delicate carbon, titanium, or thin-wall alloy frames.
Main Beam
The main beam is the structural backbone of the iSi carrier and is available in both 25° and 40° departure angle configurations at various lengths. With bikes staggered vertically along the beam, this stadium-style layout reduces the rack’s overall length by managing hub-to-hub clearance. This results in the most compact rack profile on the market, minimising rear overhang on the vehicle.
The staggered positioning also provides a clear working field for loading and unloading bikes with no overlapping handlebars or awkward reach-arounds. Designed for 2- or 4-bike configurations, the main beam connects tool-free to the pivot base and can be quickly swapped to a trailer or removed as needed. It’s a rigid, modular foundation that delivers both performance and practicality for serious adventure travel.
Tow Bar Pivot Base Mounts
The iSi Pivot Base is a robust modular hitch mount that comes standard with a high-tensile anti-rattle hitch stabiliser and an integrated auxiliary license plate holder (or optional lightboard). It’s offered in multiple height and length configurations for the best compatibility for different towbar depths and clearances for drop-down tailgates or rear swing out doors. Moreover, the modular mounts provide ample departure clearance so your bikes or rack avoid ground strikes. The design also features adjustable mounting positions (with multiple hitch pin holes) for fine-tuning the rack’s position relative to your vehicle, yielding a perfect fit tight to the vehicle while providing and secure wobble-free performance.
Adjustable Quad Contact Wheel Cradles
Each bike is stabilised and secured via our Quad Contact Wheel Cradle system with no clamps, bungees, or tie-downs required. The mandrel bent hoops support the tyre at four points on the tread, locking the bike in position through the wheels. This eliminates any unwanted bike movement or rolling left and right as you travel especially over corrugations or off-road tracks. Each cradle is mounted on a sliding offset sleeve, allowing independent height adjustment to finely control handlebar and saddle clearance. Bikes sit tighter and more securely with a narrower footprint, creating a compact, stable load without compromising ease of loading.
