Quick Summary
The Witter ZX303 is a clamp on towbar mounted bike rack for 3 bikes, designed for carrying bikes on the rear of the car. It has a maximum load of 51 kg, a low platform for easier loading and unloading, and a supplied rear light board with 13 pin plug.
Who It Is Best For
This is suited to drivers who want a towball mounted carrier for taking several bikes on one trip. It is also a practical choice if you want easier boot access while the rack is fitted, as it can be tilted when loaded. The adjustable wheel holders also make it suitable for transporting many common bike types, including children’s bikes.
What To Know Before You Buy
The rack is listed for bikes and e bikes weighing up to 17 kg each, with a total maximum load of 51 kg. It is not applicable for van vehicles. A 7 pin adaptor is available separately if needed.
Pros: Quick to fit and remove, with tilt function for boot access and three fixed arms to help keep bikes apart.
Cons: Check your bike weights, tyre width and towball compatibility before ordering, especially if you plan to carry heavier bikes or use it on a van.
Common Buyer Questions
How many bikes can it carry?
It is designed for 3 bikes.
Can it be used with an e bike?
It can carry bikes and e bikes up to 17 kg each.
Does the boot stay accessible?
Yes, the carrier can be tilted even when loaded to allow boot access.
What electrical connection does it use?
It comes with a rear light board and a 13 pin plug.
Will it fit a van?
No, it is not applicable for van vehicles.
Key Details
| Detail | What it means in use |
|---|---|
| Brand and model | Witter ZX303 towbar mounted bike rack |
| Bike capacity | For 3 bikes |
| Maximum load | 51 kg total load limit |
| Maximum weight per bike | 17 kg per bike |
| Mounting type | Attachable to 50 mm towballs |
| Light connection | Supplied rear light board and 13 pin plug |
| Wheel and tyre guidance | Max tyre width 8 cm, max distance between bike wheels 120 cm, distance between rails 17 cm |
| Boot access | Tilts when loaded for easier access to the boot |
| Vehicle note | Not applicable for van vehicles |
Final Buying View
The Witter ZX303 is a straightforward towbar mounted bike rack for carrying up to 3 bikes with a 51 kg total load limit. With its tilt function, low platform and supplied 13 pin light board, it offers a practical setup for regular family or leisure use. If your bike weights, towball type and vehicle match the listed details, it is a sensible option to consider.





