Switchable Shield是一款新型多功能自行車配件設計，一般的自行車需要許多基本配件，如車燈、擋泥板、方向燈、立車柱與自行車鎖等。在這個設計內，我們將多種不同的功能以簡潔的設計收闔在單一的結構上，裝設在自行車後輪的Switchable Shield 透過使用者的操作在不同角度下呈現多種功能：當Switchable Shield 以六點鐘方向立在地面上時為自行車立車架與電子車鎖，而向上拉十點鐘方向則呈現擋泥板與燈號顯示功能。相較於一般獨立凌亂的配件，Switchable Shield 為日益趨多的自行車族群提供了一款簡潔與直覺操作的選項。 

Switchable Shield 整合了自行車後輪所需要的多種基本配件，使用者可簡易的操作與安裝。Switchable Shield 整合了的配件包含六點鐘方向立在地面上時的自行車立車架、與智慧手機配動使用的智慧電子車鎖；拉提至十點鐘方向的擋泥板與方向燈號顯示條。

Switchable Shield is a innovative bicycle accessory. it's integrate several basic functions of bicycle back wheel in an brilliant design which combines bicycle mudguard, rear light, turn signal, kickstand and lock. Compare to Switchable Shield, normal bicycle accessories are littery and complicated. 

In this design, we provide a easy and elegant way in installing and using it. There are two main status when people use it. Pull up Switchable Shield to 10 o'clock direction, the rear light and turn signal turns on with the mudguard functions. Push down Switchable Shield to 6 o'clock direction, it turns into kickstand with lock function which connect to user's smartphone anti-theft application.