something like this should allow you to mount cages to your fork
https://www.amazon.com/dp/B00ZFHW1MI/ref=sxbs_sxwds-stvpv2_1?pf_rd_m=ATVPDKIKX0DER&pf_rd_p=2708083022714283574&pd_rd_wg=0g1oA&pf_rd_r=KMM3YKT0XBZ1G73EHA1R&pf_rd_s=desktop-sx-bottom-slot&pf_rd_t=301&pd_rd_i=B00ZFHW1MI&pd_rd_w=1egZK&pf_rd_i=king+cage&pd_rd_r=393285c5-9253-4e60-8def-890243a4406f&ie=UTF8&qid=1527092441&sr=1