Dunno if it's just me getting old/slack, but I increasingly find that e-bike-rated tires/beads not only deliver more PITA, but make me actually /break/ tire levers (which I managed to avoid for ~40 years). The KSTBJ I bought ~2020 solved that problem for tires on my {26", ETRTO=559} and {28", ETRTO=622} bikes (which all have tire widths ~{1.75", 47 mm} ... but unfortunately /totally/ failed on the {20x2.4 in, ETRTO=406-62} tires that were OTM on my cargo e-bike. As in. the KSTBJ just does not fit over tires that wide.
So if you're considering using a KSTBJ on tire widths greater than or equal to {2 in, 50 mm}, I suggest contacting Kool-Stop first. (FWIW, in 2024 I emailed asking if they'd consider making/offering a larger-sized TBJ precisely to solve this problem, and they said ~"try back later," so I need to do that.)
Purchased for home use to replace a decades-old Ultimate Slidelock repair stand (predecessor to Feedback Sport repair stands). Used for road, gravel, and MTB (up to 30 pounds). Compared to my old Slidelock the Pro Mechanic is surprisingly more flexible. There's noticeable flex in the vertical post and at the clamp head, as well as slop in the tripod base. The clamp works well; the soft jaws are good; arrived fully assembled which is nice. The red quick-release button requires a pretty good whack to get it to release. Note that the Pro Mechanic has 2 pounds more material than my old Slidelock which makes the flex even more surprising. Got it on sale which helps a lot.
I've used this Silca kit a few time and carry it when ever I go for a ride on any of my CF bikes. It's handy to know that you're not under or over cranking anything a bolt or anything else on these newer bikes. It has what you need and it light enough to carry while it's in a very good long term feeling case. My last long adventure (154 mi. race at Gravel Worlds, NE) I had it but didn't need it...peace of mind. As usual, I got it for a better price than the Silca website too.
