Making a Homemade Tyre Booster скачать в хорошем качестве

Making a Homemade Tyre Booster

This video shows my homemade tyre booster project. Spoiler alert - it didn't work on this video but it did work on a different wheel/tyre/valve combination off camera a week later I bought a mountain bike a few years ago and it was suggested that I could run it tubeless - but I didn't as I was unfamiliar with the process and I didn't have certain tools. When I got another bike last year that was already tubeless I realised that I really needed to be ready to at least refit a tubeless tyre if needed. I looked on line at getting a tyre booster (as I was not going to buy a compressor) and baulked at the cost of £60 especially as I felt I could make one for a lot less. The key part that was difficult to source new was the cylinder but as any UK resident will be familiar, unfortunately there are huge numbers of discarded catering NOx cylinders everywhere - one one of these would be an ideal part to use. I picked up a discarded cylinder locally for this purpose. Some very careful testing to make sure it was empty was carried out in a vented area - however I believe that the design of the valve ensures that they will be empty. The hardest part of this project was actually adapting the fitted brass fitting to more standard fittings. Despite careful measuring I could not determine what the exposed brass thread was. I took it into work (luckily I work in a world class engineering company) and the team in the Fabrication shop could work it out either. Luckily one of them was happy to re-machine it to 18"BSP for me as there was enough material. Other people may not have this opportunity so a alternative may be to redrill and tap the cylinder itself (I would have done this next) probably to 1/4"BSP. Having got this resolved I bought a few fittings and could assemble the device. Luckily I also had a spere track pump on which I had upgrade the pump head assembly a few years prior else I would also have had to buy a hose and pump head. For me the parts total was about £10 On completion of assembly I tried it out on an old Shimano 6800 Ultegra wheel - but I only had the original valves (from which I could not remove the core) and the wheel/tyre (a Giant Gavia AC) combination seemed difficult to get the bead anywhere sensible so when I tried it in this video it did not pop the tyre onto the rim and just leaked massively. I did however at a later date try the same tyre on a Giant tubeless wheel (with a removable valve core) and had good success So all in all - a very cheap way to make a tyre booster (and for an engineer like me) a very satisfactory afternoon's effort