Tuesday, April 22, 2025

Something not to lose...amount of sealant for tubeless tires

Got a flat today.  The flat sort of sealed, but I really should have had a spring top off, because it wasn't a full seal and the tire stayed mushy.  So my wife picked me up at St. Peter's church and I hauled the bike home to try my first ever tubeless tire goo addition.

Item one: per this chart, I need 3 oz per tire.  My kit had a total of 4 oz.  So I'll need to get more.

Item two: don't try to just spritz new goo in there through the valve stem.  That's a mess.  The caps for the valves double as tools to remove the valve cores.

Item three: you still have to haul along a pump or CO2 [this I knew].

Item four: if you flip your bike over and the leak is at 12 o'clock, then all your goo will be down on the bottom at 6 o'clock and it won't seal.  You need to rotate that side of the tire downward [which it would do many many times if you're actually riding] so it sprays sealant out and gets a good seal that will allow appropriate air pressure.

Item five: not new, just a reminder, Minneapolis/St. Paul streets are littered with pointy bits this early in the season.  An absolute freaking mess.  I think I get a flat in April every year.

Item six: at least I found the hub-mounted hex wrench for the bike I gave my brother while I was looking for other bike bits.

Item seven: at least now that the bike is inside and resting, I can give it a good cleaning.

Item eight: at least I got 20 miles in before it went mushy and I've got a back up and the Zwift should I prove challenged at getting more goo in the tire soon [someone on line said "I like to hear it slosh" which is probably valid advice...it needs enough in there to spray and still have a lot left].

Item nine: I did feel VERY good riding into Minneapolis and back.  I keep thinking outside is way different than the Zwift.  And it is.  But when I remind myself to increase my cadence and that the hills are only a fraction of what I do on the Zwift, I barely feel 20 miles and 417 feet even stomping it a bit.




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