Quick Summary
The Bone Bike Tie Pro 4 is a universal bike phone stem mount for phones from 4.7" to 7.2". It uses a flexible silicone strap design with an enlarged, non-slip base, and it is described as a bike phone holder with a soft-touch silicone build.
This mount is aimed at riders who want a stem-mounted phone holder that leaves the front camera and home button area unobstructed. The stated phone-size range is the main detail to check before choosing it.
What to Compare Before Buying
- Phone size: This mount is stated to fit phones and cases between 4.7" and 7.2". Check your device size and case together.
- Mount style: It is a stem mount, so confirm that this is the mounting position you want on the bike.
- Front access: The design leaves the front camera and touch controls unobstructed. Compare that with how you plan to use your phone while riding.
- Material style: The holder uses soft-touch silicone with no plastic or metal screws mentioned in the description.
Compatibility, Size and Fit
The stated fit range covers smartphones and cases from 4.7" to 7.2". The page also says the holder is compatible with Face ID, Touch ID, and home buttons because the front area remains open.
Because fit depends on both the phone and the case, buyers should compare the exact size of the device they plan to use. If the phone is near the upper end of the stated range, check the full device-and-case size before choosing an offer.
Before You Decide
Confirm that your phone and case fall within the stated 4.7" to 7.2" range, and make sure a stem mount is the right setup for your bike. If you need the front camera or touch controls open during use, this design is built around that requirement.





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