"This high quality adapter plate allows you to mount FastTT aero bars to the existing Argon18 spacer stack. Our Argon18 twin post adapter plate is ready to bolt on, with standard dimension Argon18 mounting holes pre-drilled for simple and fast installation. Features a pre-threaded integrated BTA mount. Pre-threaded BTA mount for a bottle cage or top-mount hydration system CNC precision machined in aluminium for maximum strength A high quality product with a superb anodised finish"
 
- Fast TT