I can't believe all the things you do Beardy despite the problems you go through. I can't imagine even attempting some of the stuff you do, like rebuilding engines.
I often struggle with MUCH smaller things, like getting both beads of a mountain bike tire to seat. I mean with a hand vs floor pump. This is becoming a more useful thing to be able to do since most MTB tires are tubeless ready anymore and fit very tight. Also because most riders go tubeless or with lightweight TPU tubes, which can take a LOT of pumping due to sheer volume (tubeless), or get damaged by heat put out by the mini electric pumps that are gaining popularity (TPU). For me it's more a thing of cost effectiveness and reliability to go with a small pump you can take with you on rides.
I was easily able to seat the tires on my new bike with my Silca Pista floor pump, but since it takes about 35 PSI to do it, a mini pump is a LOT harder to do it with. The first time I tried it with a mini pump is after I watched a YT video on how it's possible if you manually partially seat the beads with a sturdy tire lever that has a slick surface. That first attempt failed, but I forgot my pump's hose is meant to thread onto the valve, so I was pumping in an awkward position holding the hose tight against the valve, while struggling to brace the end of the pump in my palm. I was convinced I'd need to buy an electric mini pump and risk heat damage. Yesterday though, after receiving my new TPU tube due to the Pirelli one I had still having an undetectable slow leak even when submerged in water, I finally succeeded after threading on the pump hose.
I had to go halfway around on each tire bead seating them manually, then stroking away at my 7.5" mini pump 350 times to get to 35 PSI. This mini pump I use is a good bit smaller than the one the guy used in the video below, and his even had a telescopic shaft. The great thing about this pump though is it's good quality and is just small enough to fit with a spare TPU tube in the larger of the two bags that came with my bike for use in it's downtube storage compartment. The smaller one I put my toolkit and tire levers in.
Compatible Models 5010 5 C Bronson 4.1 Hightower 3 Megatower 2 Nomad 6 Nomad 7 Stigmata 4 C Tallboy 5 C Roubion 4.1 Quincy 1 Kit Contents: Part Number Description Quantity 44-23229 Glovebox Tube Bag, Type 1 1 44-23230 Glovebox Tool Roll 1
www.santacruzbicycles.com
This guy uses a Tyre Glider like I do to mount and unmount tires, but I prefer the Pedros tire lever for the manual seating of the beads. He's got a new tire there like I do, but I would wager my Maxxis Minion DHR II EXOs are less supple than his due to the EXO protection layer and may even have a tighter bead fit due to being rated for DownHill Race. My rims also have a narrower center channel than his, meaning more distance the tire bead has to go to seat on the unseated portion. Just the fact that he was nowhere near 25, let alone 35 PSI, tells me his are far easier to seat. Kenda tires are good, I've had them, but they aren't as robust and stretch faster than some.
This video, despite the author using somewhat questionable methods and descriptions, shows how much more efficient the modern pump designs are vs the older ones. The Lezyne is the one I own, and despite being much smaller and lighter, easily outperforms the Blackburn, which had a lot of popularity in it's time.
View: https://www.youtube.com/watch?v=cb_6ed9rtmw