The veolo trailer can be attached to the rear wheel of almost any bicycle. We explain in 5 steps how to properly install the bicycle trailer hitch and which accessories you need depending on the axle type.
Solid axle: firmly attached to the hub on the left and right with axle nuts. Older bicycles often have solid axles.
Quick-release axle?
Quick-release axle: Clamping lever approximately 5 mm in diameter, with springs on the left and right.
Thru axle?
Thru-axle: may also have a quick-release lever, but it is more than 9 mm thick and has visible threads on one side.
Do you have a thru-axle? Then skip directly to step 3.
2. Check the frame
Only with a quick-release or solid axle: check whether the left side of your frame, viewed in the direction of travel, has a flat dropout or a recessed dropout :
Dropout Flat
If the frame has no recess, it is completely flat at the dropout, as shown in the illustration. Proceed to step 3.
Recessed Offset
With a recessed frame, you need an extension adapter for quick-release axles (e.g., here) and a solid-axle adapter for solid axles (e.g., here) to compensate for the recess; see the illustration.
For all quick-release axles, you can learn more about the special polygon in step 3.2.
3. Check the axles
Now we’ll check whether you can continue using your axle without any problems or whether an adjustment is needed.
Check solid axle
If you have a solid axle, check now whether you can use it without any problems, need an accessory, or have to replace it.
Loosen the cap nuts and check whether there is at least 15 mm of remaining thread on the solid axle.
If so, you can attach the coupling without any problems.
Instead, if you have a quick-release axle, check its compatibility as follows:
Flat dropout: Release the quick-release skewer and check whether the axle protrudes at least 10 mm (nut + coupling piece) on the other side for attaching the coupling (Warning: If less than 10 mm of the axle remains on the other side, your axle is too short and you need an adapter.
Recessed dropout: You must compensate for the recess with an adapter so that the coupling can be attached.
Check the thru-axle
Do you have a thru axle instead? Proceed as follows:
Compare the illustration with your thru axle to determine the axle length, axle mount, and thread pitch, and to find the suitable thru axle.
4. Assembly & Sequence
Attach and align the coupling.
Solid Axle Mounting
Pay attention to the order of the individual parts.
Quick-release axle installation
Pay attention to the order of the individual parts.
Thru-Axle Mount
Pay attention to the order of the individual parts.
4. Attach and secure the drawbar
The hitch must be securely fastened and aligned as shown in the illustrations. Now you're ready to go.
Attach
Insert the tow bar’s ball head into the bicycle’s hitch. The illustration shows the Thule model. With the veolo hitch, the ball head clicks into place from the side.
Save
Secure the hitch to the frame with the safety strap. To do this, loop the safety strap around the frame and back through the loop in the safety strap. Now insert the safety pin into the hitch until it audibly clicks into place. The illustration shows the Thule model.
With the veolo hitch, the safety strap must be attached to the frame. A safety pin is not required. However, you can optionally lock the hitch.
Matching accessories for your hitch
Axle adapter Solid axle
If your thru-axle has less than 15 mm of remaining thread.
Does the veolo hitch fit the thru-axle of gravel bikes?
For mounting on a gravel bike, you need a suitable new thru-axle with a side mount for various hitch systems. We always include the matching Thule hitch piece.
Is the compatible bicycle-side hitch included in the delivery?
Yes, the matching Thule hitch is included as standard. During configuration, you can alternatively choose the Weber hitch for a small additional charge.
What is the difference between the standard hitch and the Weber hitch?
Standard hitch (similar to Thule): proven system with a ball head on the drawbar and a coupling piece on the bicycle, secured with a retaining pin and safety strap. Virtually play-free, durable, and unobtrusive—it is installed as standard and supplied with the coupling piece.
Weber hitch: more technically complex, with a drawbar connection and integrated lock. A slightly larger coupling piece remains on the bicycle; the mounting part for the bicycle is not included and is not compatible with the swivel drawbar.
