Honestly wasn't expecting much from a spare part, but the machined finish is spot on and the pins fit perfectly with zero slop. Running them on the Tracer and they've taken a few hard knocks without a hint of wear.
Zoe★★★★★
Swapped these into my MT-One and the machining is noticeably cleaner than the stock cups, no slop at all. The pins fit snug and the set covers both the Tracer and Slyder, so it's a solid upgrade if you're running either.
Olivia T.★★★☆☆
They fit fine on the MT-One and the machining looks clean, but I can't say I noticed any real performance jump over the stock cups. The pins are a snug fit which is good, though I wish they'd included a couple of spares for the price.