Black Pearl Designer Handlebar Installation Kit - 12"-14" - '12-'17 FXDB/C. Black Pearl™ Designer Handlebar Installation Kit - 12"-14" - '12-'17 FXDB/C. Brake lines are constructed with PTFE inner tubing, DuPontTM Kevlar® aramid fiber, premium Signature Magnum braids, and an outer PVC jacket.