Flat tire sitting inside her van

Pulled her Trike out today. Rear was flat. Have tubes. It is a 2016 with
NuVinci hub. Was wondering if there
Was anything I need to look for when
taking rear wheel off frame. Thanks.
She is done at Meijer today so van won't be sitting in sun for 8 hours with
Rover inside. :)
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Comments

  • good time to pull the rimstrip and see if any metal debris lies underneath, then check each of the spoke nipples to see if any of the spokes protrude. i toss the rimstrips and replace with velox tape to lessen the chance of pinch-flats.

    havent tried them yet but for rear wheel flat-proofing, slime tire liners might be a good thing: https://www.slime.com/us/products/bike/tools-accessories/tube-liners-skabs/tube-protector-one-size.php
  • Rover came with Schwalbe Road
    Cruiser tires. Could heat inside van cause over expansion of tubes? Going to put Goodyear tubes on it next. Thanks.
  • We think almost two weeks since she rode it. I put some air in with an hand
    pump a couple hours ago. Seems to be holding firm.
  • A really good idea when you get a trike, is to practice taking the rear wheel off and replacing it, so you don't have to do it the first time when you are on the road with a flat.
  • Yes. So happy we were home. Want to ride Sunday. Reunion tomorrow
    Won't look at it til Sunday.
  • My trike sits in a hot garage in Florida and barely loses any air. I would not trust that tube to hold air for a ride. Take a look at it first.
  • It held air overnight though I didn't take it all the way to 50. Stopping at a lbs to get a few things today. So how can a tube go from dead flat in 12 days to holding air overnight?? Other two tires are fine. I think it was on this forum where an old tube was used as a barrier. Maybe someone can chime in b4 I fix this tonight or Sunday.
  • Could be the last time the tire was pumped up, the valve pin didn't seat correctly.
  • And air can leak around a cap?
  • Just added more air with a small hand pump. No hissing heard. Read something here about a Schwalbe tube
    sporting a metal valve casing? Is that
    correct?
  • FINN58 wrote: »
    Just added more air with a small hand pump. No hissing heard. Read something here about a Schwalbe tube
    sporting a metal valve casing? Is that
    correct?

    Yes it is, I prefer the all metal stems like they have. They come with a "locknut" that makes it easier to re-inflate them since the stem won't sink into the rim.
  • They are Schrader valves?
  • edited July 2017
    Valve caps don't hold air in your tubes...
    https://itstillruns.com/purpose-air-valve-stem-caps-5593328.html

    Tire of choice + quality innertube + thorn barrier + slime = best assurance
  • Going to have her tires off for the first
    time to see what lies beneath.
  • that extra ounce of protection:

    "Metal Schrader valve caps, available at an auto-parts store or better bike shop, have a rubber seal to prevent leakage even if the valve itself is leaky."

    - https://www.sheldonbrown.com/inner-tubes.html
  • make sure the valve stem it tight in the valve.
  • Going to look for THAT tool today too!
  • edited July 2017
    JamesR wrote: »
    that extra ounce of protection:

    "Metal Schrader valve caps, available at an auto-parts store or better bike shop, have a rubber seal to prevent leakage even if the valve itself is leaky."

    - https://www.sheldonbrown.com/inner-tubes.html

    If you need a valve cap to hold air in, you have a defective valve or it isn't seated properly or the pin is bent. they cost about a whopping 5 cents.

  • edited July 2017
    Slime Valve Tool sells for under $3 at most stores and comes with 4 new valve stems. Look in the automotive section. ~ Found a kit at Walmart in the auto section ... none in the bicycle area oddly.

    a119e2e6-b70f-41c1-a733-10fd821acba2_1.99909cea461d2798d5fa0332d5f3093c.jpeg?odnHeight=450&odnWidth=450&odnBg=FFFFFF
  • Oddly holding air after being gone nine hours. Didn't make it to store. Long day.
    Still have the one question. Do I need to detach shift cable from hub to change out tube?
  • edited July 2017
    Yes, you have to disconnect the cables.
    Also I advice against getting a valve core tool like that.
    Get a slim dedicated tool instead, the one pictured is a real pain to use on a 26" wheel due to hitting spokes much less our 20" ones.
    These types are better:
    ij5l4se26xya.jpg
    poyh79xyeny8.jpg

  • edited July 2017
    us old codgers had these front and rear on the 26-inch schwinns

    https://images-na.ssl-images-amazon.com/images/I/41S3WrRqc4L._SX425_.jpg

    10 for $3.50 [free shipping] if you have a few trikes. me, i got a coupla free plastic ones from the lbs.
    https://www.amazon.com/Suriel-Metal-Slotted-Valve-Remover/dp/B018I3L3W4/ref=pd_sim_263_4?_en
  • JamesR wrote: »
    us old codgers had these front and rear on the 26-inch schwinns

    https://images-na.ssl-images-amazon.com/images/I/41S3WrRqc4L._SX425_.jpg

    10 for $3.50 [free shipping] if you have a few trikes. me, i got a coupla free plastic ones from the lbs.
    https://www.amazon.com/Suriel-Metal-Slotted-Valve-Remover/dp/B018I3L3W4/ref=pd_sim_263_4?_en

    Forgot about those, they were the best.
  • edited July 2017
    Those core-remover caps are bad to have on valve stems. Miscreants steal them, some end up removing the valve cores for spite. Not many people carry spare valve cores around in a small box or 35mm canister.

    Have a core-remover cap on a ripped-out Schrader stem that had been glued in so it won't budge, yet still isn't nearly as easy to find in a pack like the 4-way is.
  • So I see two cables go to this NuVinci
    330 hub. Thought my Nexus had one. I saw one when it was in place on hub. Other must have been UNDER the other, correct? A cable for each direction of the hub? Help
  • yes - both nexus and sturmey are single cable shifting.

    havent played with nuvinci yet but what you need to know in the 'read me first' at:

    http://www.nuvincicycling.com/en/service/downloads.html
  • Figured the cables out and it shifts fine. But she test rode it and I had to move the seat back an inch. Nothing changed
    About chain length. Very weird. One knee was almost in her throat. Now it's better and the other leg is almost straight out so I can't give her more room for her other knee. :'(
  • edited July 2017
    Switch out crank arms, get a shorter one for the longer leg. Or lean the seat back some.
  • Way back in the day (1.5 yrs ago) I rode a Rambler GT. It was stored in my garage, ridden just about every other day. I came out into the garage one morning to find one of the front tires flat (Schwalbe Marathon). The trike had been ridden almost 1,000 miles. I removed the tire to find the tube was somewhat kinked near the valve stem (from the factory). I had always aired the tires to 90 psi about every other ride. I guess that over time the kink (pinch) finally opened causing the flat. I was very glad this happened in the garage and not twenty miles from the house and out in the boonies!

    When I replaced the tube I never had another problem, but I remembered something I read somewhere. Be very careful when replacing the tube. Partially inflate the tire then gently flex the tire back and forth all the way around the wheel (I repeated this step twice just to be sure). Deflate the tire then air it up fully. Apparently, this helps to eliminate kinks in the tube. Since that experience I've never had a similar problem.
  • Yes, learned that inflate method with motorcycles.
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