ordered some stuff from JRA and thought id make a start tonight. havent got a small round file to make the valve hole, so thought id get as far as putting the yellow tape on and carry on in a day or so when i get a file from work.
it wasnt as id expected it really. bit of a faff getting the tape on. i took my time, and tried to squeeze air out etc, but it was just so tight in the rim that it didnt go in perfectly straight all the way round. or smoothly come to that.
so my question is…..does it matter? as long as air cant get to the spoke holes then itll be fine wont it?
the one thing that puzzled me was, theyre tubeless rims. so made to locate the tyre bead better, and grip it better etc. and then you go and put a load of tape along it, a bit bumpy in places, higher on the rim in some places then others…….
starting to think 'ghetto' would give a better seal than this will…
couple of photos below. does everyones look as shite as that? 🙁
hmmm im wondering if theres different widths and theyve given me the wrong stuff. it says it fits stans flow rims, and a few others, but doesnt mention my 355s. and its defo too wide to just lay in the centre, it climbs the inside of the rim 🙁
as for stretching it tight, i tried to push it in as tight as poss, but its certainly not stretchy. or that sticky really :-/
That is a pretty shit job Dave… 😉 As Stu said, you need to pull it quite tight as you put it on. Also helps to heat it up a little, let it sit on top of a heater for a bit before you put it on. Need to make sure rims are totally clean as well. Given that you've already got it on there though, I'd mount a tyre with a tube in it and pump it up hard and leave it for a while to make sure it's stuck down as well as possible. If it then doesn't hold air tubeless you may have to start again.
grrrr……..just been out to the garage to measure it and its 25mm. so they sent me the wrong stuff >-(
i told em what rims they were too.
i think rather than carry on with the wrong stuff, on a job thats dodgy enough anyway, ill give em a ring in the morning and ask em to send me the right tape :-/
For when you get the right tape – Sticking in a tube and tyre at 40psi over night helps stick the tape well down. I didn't file the tape out of the hole, I just cut a cross and pushed the valve through. Hasn't caused any problems so far.
one question before i carry on with this next week…… i dont understand the compressor thing.
if ive put sealant in my tyre, and now the tyre is seated, and the wheels on a jig or hung somewhere, why does it matter how fast the tyre is pumped up? in fact id have thought thered be more call for it to be inflated slower, so you can keep tweaking the tyre all the way round as it inflates, to try and make sure it seats better.
The compressor is just to get the tyre to seat in the rim in the first place. If you can get it to make a ping-type noise and stay seated with a track pump then that's fine. Then you can shake etc like in the Stans video to seal any leaks.
It can be tough to get the bead to snap into the rim and that's when you need to get in air quicker than it escapes. Your first ride on these wheels is going to feel good after all this effort!
I couldn't find a forecourt pump that could blow quickly enough so had to ask a mechanic to use his compressor. He was astounded that you could get tubeless bicycle wheels. I also needed to get an adaptor so the compressor nozzle would fit onto the valve.
Put a tube in it overnight at 40psi, it helps to stretch the bead into place (and settle your yellow tape). Leave one bead still on when you take the tube out, plenty of watery soap on the open side and have another go with the track pump.
ok, update time. just tried that anthony, and no good. id left a tube in for a couple of days anyway on one of the wheels, so just did as you suggested and no good. loses the air straight away.
so…….just taken wheels to petrol station, and STILL no good. i tried another garage, and it seems these modern compressors arent very tubeless mtb wheel friendly at all 🙂
they rely on pressure being in in the first place. but theres a 'flat tyre' button to get you started. which i tried. but i swear the air comes out faster with my bike pump than that thing!! and after about a minute, if its not feeling pressure in there it packs in. 2 X 20p's wasted 🙂
Inflate the tyres with tubes for a day or so, then try tubeless again. I always have trouble with new tyres that have been folded up, but have no problem reseating them unless they have been packed away in the shed for a while.
(sorry, I see you've already tried that in the above post)
A small co2 inflator has never failed me when trying to seat stubborn tyres 🙂
never looked at them mate. how much are they? and do you have to buy your air? or refill? or is it a case of once youve bought it, it costs you nothing after that?
The CO2 inflator we've had for over a year, I think we've used two cylinders in that time…its just there as a last resort. Its an Innovations inflator, not sure if they are all the same, but this one you can inflate one tyre, then when you release it self seals, then you can use it again for the other tyre. I think some just pierce the canister and its a case of use it or lose it over the next few seconds!