The mini Peregrine X proved undersized yo-yos didn't have to sacrifice power, using a D-bearing to pack real performance into a smaller frame. That success raised an obvious question for yoyofriends: what if the next undersized build leaned into fun instead of pure competition performance? Mini Ti Koi is the answer, an undersized titanium yo-yo built for portability without giving up the punch. Getting the size right took real back-and-forth. Early proposals came in too small, so the team settled on 42mm diameter by 39mm width, compact enough to stay undeniably mini while leaving just enough room to perform. Weight followed a similar path, starting under 60g before landing at roughly 64.5g after prototype testing showed the lighter build felt underpowered. The gap width got a small but meaningful tweak too, widened from 4.55mm to 4.58mm with slightly lower walls, fixing a snagging issue that showed up when stacking layers of string during play. The result is a titanium mini that's maneuverable in the hand but still carries some real heft and power behind it, built around that same D-bearing foundation that made the mini Peregrine X work. It's the pocket throw for players who want serious titanium feel without the full-size footprint. Toss it in your pocket and take real performance wherever you go.