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Red silicone stem phone mount with flexible straps for 4.7 to 7.2 inch screens

Bone

Bone Bike Tie Pro 4 Stem Mount Phone Holder 4.7-7.2" Red

SKU CH-VMN9-GWSF7

Silicone stem mount secures phones from 4.7 to 7.2 inches with shock-absorbing straps that keep Face ID and Touch ID unobstructed

  • Product typeBike Phone Mount
  • Product colorRed
  • Main materialSilicone
  • Key featuresUniversal
  • Secure hold for 4.7–7.2" phones with flexible silicone bands
  • Enlarged non-slip base and innovative strap design for maximum stability
  • Soft-touch silicone absorbs shocks without plastic or metal screws
  • Unobstructed front camera keeps Face ID and Touch ID working
  • Universal fit covers iPhone 13 Pro Max, Galaxy S21 Ultra and more

Stem-mount holder for 4.7–7.2" phones

The Bone Bike Tie Pro 4 clamps to a bike stem and holds smartphones from 4.7 to 7.2 inches. Its all-silicone construction removes metal or plastic screws that can scratch a device. The mount is aimed at road, race and touring cyclists who want a minimal profile.

Enlarged non-slip base and strap design

An enlarged base with a non-slip surface works with the flexible strap to keep the phone steady on rough tarmac. Soft-touch silicone absorbs vibration instead of transmitting it to the handset. The bands leave the front camera, Face ID sensors and Touch ID or Android home buttons uncovered.

Fits 4.7–7.2 inch screens only

The silicone bands stretch to grip phones and cases between 4.7 and 7.2 inches diagonally. Devices outside that range will not sit securely in the mount. Riders needing a larger or smaller clamp must choose a different holder.

How it compares

Measured against everything we stock in Bike Lights, Racks & Accessories, at today’s prices. Recalculated every night.

Price $23.99
Cheaper than about 57% of the 211 comparable items (median $25.99).

Specifications

Product
Brand nameBone
Model nameBike Tie
Product typeBike Phone Mount
Product colorRed
Size & build
Main materialSilicone

Questions about this item

Will the silicone straps stretch out and need replacing after months of daily rides?

The holder uses flexible silicone bands rather than plastic or metal screws; silicone can lose elasticity over time, so plan to swap the straps if they no longer grip phones from 4.7 to 7.2 inches securely.

What part of the mount reaches its limit first on long, rough descents?

The enlarged non-slip base and strap tension are the primary stability points; under sustained vibration the strap-to-base junction takes the most stress before the phone shifts.

Does the silicone body trap heat against the phone during all-day summer touring?

Soft-touch silicone wraps the device without metal or plastic brackets, allowing airflow around the edges while absorbing road buzz, so heat build-up stays minimal even on extended rides.

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