I currently own a 2014 Cannondale Jekyll 4 which I bought used about a year ago. The front fork is decent but even after a recent service, its feeling like it needs to be upgraded. My friend who also rides cannondale happened to be upgrading his fork as well from a 27.5 lefty and offered me a killer deal on it. I'm not very familiar with lefty compatibility and I'm wondering if anyone else has any tips for checking this before I purchase the fork. Its a Tange Seiki 1.5" integrated headset without a taper and the fork is a 2016 lefty supermax 140mm 27.5. The headset is short enough to fit but the taper is my only concern.