Quick Summary
The Deerfun detachable bike phone holder is a handlebar phone mount for smartphones sized 4" to 6.7". It is designed to be removed without taking apart the full mount, and it offers 360° rotation plus horizontal or vertical positioning.
The mount is described as suitable for handlebars from 18 mm to 35 mm and uses a tool-free fixing method with silicone bands and a silicone buckle. If the fit matters, check both your phone size and handlebar diameter before choosing an offer.
Key Details
| Detail | Verified information and buyer relevance |
|---|---|
| Brand | Deerfun. Useful for identifying the exact product family. |
| Product type | Detachable bike phone holder. This is a handlebar-mounted phone holder for a bicycle or similar bar setup. |
| Phone size range | Compatible with smartphones from 4" to 6.7". Check your device size before choosing a fit. |
| Handlebar fit | Suitable for 18 mm to 35 mm handlebars. Measure the bar before buying. |
| Rotation | 360° rotatable. This allows the phone to be positioned in portrait or landscape orientation. |
| Installation | Tool-free installation with silicone bands and a silicone buckle. This affects setup and removal. |
What to Compare Before Buying
- Phone size: The stated fit is 4" to 6.7". Compare that range with your handset size, especially if you use a larger phone or a bulky case.
- Handlebar diameter: This mount is stated for 18 mm to 35 mm handlebars. Check the bar on the bike, motorcycle or other equipment you want to use it on.
- Mounting style: The holder uses elastic silicone straps and a silicone buckle. Consider whether you want a removable holder or a more fixed-style mount.
- Screen orientation: The mount can be set horizontally or vertically, which matters if you prefer maps, calls or music controls in a particular layout.
Compatibility, Size and Fit
This holder is intended for handlebars between 18 mm and 35 mm, and it is described as suitable for bicycles, motorcycles, scooters, strollers and shopping carts. The phone fit is given as 4" to 6.7" smartphones, so the handset size is the main check before purchase.
If your phone sits at the upper end of that range or uses a thick case, confirm the total size rather than the handset alone.
Before You Decide
Confirm the phone size, handlebar diameter and chosen mounting position before selecting an offer. The detachable design and 360° rotation are the main practical features, but the fit on your own device and handlebar is the key buying check.
Follow the manufacturer’s instructions for installation and use on your equipment.
Planning Your Handlebar Setup
A detachable phone holder is easiest to plan around the device you use most often. Before fitting it, decide whether you want portrait or landscape use, then check that the handlebar space leaves room for the mount and the screen position you prefer. That makes it simpler to place the phone where it stays readable without blocking your controls.






