Zoom Bike Handlebar Stem Raiser Adapts a Quil Fork to Threadless Stem 1-1/8"

Zoom Stem Raiser / Raiser Aluminum Alloy Stem Raiser This adapts a 1-1/8" quill type threaded  fork  to allow the use of a  1-1/8" Threadless Stem (aheadset type) Make your bike more comfortable! Zoom Q-5 Quill dia on this is 25.4mm (typically fits inside a  standard 1-1/8" fork steerer tube) and allows a standard 1-1/8" threadless stem to clamp on to it.  The Zoom Q-5 is cold forged and allow a 23mm height adjustment. For installing threadless stems on a threaded fork   Quill Insertion Diameter: 25.4mm for 1 1/8" stems Stem Clamp size : OD 28.6mm for 1-1/8"   Quill Stem Size: 25.4 to fit in a  1-1/8" threaded fork Stem Clamp Size: 1-1/8" SM2872 Q-5