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Is this safe to use with aluminium steerer? It's going on my shopping bike but I still bump up kerbs.
http://www.jejamescycles.com/bbb-aheadstem-steerer-tube-extender-99991176.html?gclid=CjwKEAjwuo--BRDDws3x65LL7h8SJABEDuFRXuYCxKoy54cgLiE2K_RSC96MUi_mmLIYPXWDefJfThoC9Ibw_wcB
Posted : 29/08/2016 12:15 pm