The Uebler IQ closure explained: why this is the smartest mounting method
Anyone who has ever mounted a bike rack on the towbar knows what that’s like: the heavy lever that you have to press down with two hands while holding the rack on the ball. It takes effort, it requires coordination, and after a few tries it starts to get annoying. Fortunately, Uebler has come up with a smarter solution: the patented IQ lock.
What is the Uebler IQ test?
The IQ lock is a patented mounting system that Uebler introduced in 2017 for the i-series bike carriers. Thanks to this system, mounting works completely without a lever, allowing you to attach the carrier to the tow hook in literally a few seconds. Moreover, the Uebler carriers with IQ lock have since won more than 23 international tests, including the ANWB Bike Carrier Test 2025.
How exactly does it work?
The operation is surprisingly simple. You place the carrier vertically on the hook of the towbar, tilt it slightly forward, and the locking mechanism locks automatically. Since no lever is required, you hardly need any force. This means the carrier is instantly secured to the wall and is protected against unintentional loosening during driving.
Disassembly is just as quick: you unlock the closure, tilt the carrier back and lift it off the base. What's more, everything can be done with one hand, which is especially convenient when you regularly assemble and disassemble the carrier.
IQ locking versus span handle locking
Not all Uebler carriers have an IQ lock. The F series — including the F14 and F24 — is equipped with the traditional tension-release locking system. This is also a patented and reliable system, but requires slightly more handling during assembly. The IQ lock, on the other hand, is the more modern and user-friendly variant and is standard on the i series and H series, such as the i21S and the H21 Z.
| Model | Closure |
|---|---|
| Uebler F14 | Spanner lock |
| Uebler F24 | Spanner lock |
| Uebler i21S | IQ closure |
| Uebler H21 Z | IQ closure |
For whom is the IQ closure most valuable?
The IQ lock makes the biggest difference for people who frequently mount and disassemble the carrier. Think, for example, of daily commuters using bicycles or those who regularly go on weekend trips. Additionally, the system is also ideal for people with limited hand strength or arm strength, as there is no heavy lever to be used. Finally, thanks to the one-hand operation, the other hand is free to stabilize the carrier.
Conclusion
The Uebler IQ lock is not a marketing story but a noticeable difference in everyday use. Push-up, tilt and ready — that’s how simple it is. If you’re looking for a bike rack that you can attach to your tow hitch without hassle, the Uebler i21S and H21 Z are the logical choice.
See our full range Uebler bike carriers and discover which model suits you best.
