1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

Self sealing inner tube saves the day :)

Discussion in 'Electric Bicycles' started by Fordulike, Jan 11, 2017.

  1.  
    Fordulike

    Fordulike Pedelecer

    Joined:
    Feb 26, 2010
    Messages:
    2,850
    Likes Received:
    697
    Location:
    Tyne and Wear
    Out on a ride today, I was aware of an unusual sound which presented itself on every revolution of the rear wheel.
    On closer inspection, I noticed a stick on the tyre that was hitting the mudguard.
    Thinking it was stuck on with the mud on the tyre, I stupidly pulled at it and the next thing I knew, pssssssst.

    Bugger, it had actually gone through the Schwalbe Marathon tyre and punctured the inner tube too.
    Luckily, the escaping air stopped after about 5 seconds and the tyre was sealed for the journey home at least :)

    I've thoroughly checked the tyre and I think the foreign object has been totally removed. The tyre has been pumped back up to my regular pressure and I will check it in the morning to see if it has leaked at all.

    If it hasn't leaked any more air, is it ok to just to leave it as it is, or would it be best to replace the inner tube?

    Anyone's experience of carrying on using a punctured self sealing inner tube, will be much appreciated.
     
    • Like Like x 3
  2.  
    kangooroo

    kangooroo Finding my (electric) wheels

    Joined:
    Aug 24, 2015
    Messages:
    98
    Likes Received:
    44
    Location:
    Wye Valley
    I think the general advice is to replace the inner tube.

    That said... on my first outing on my first e-Bike, I rode straight over a piece of blackthorn and the thorn went straight through the tyre, puncturing the inner tube. I saw what had happened and managed to break off the twig leaving the thorn embedded inside the inner tube and it lasted for my 4 mile ride home (phew!).

    The next day my delivery of Slime arrived so I removed the thorn, deflating the tube in the process, pumped in the slime, spun the tyre several times and it held. This was August 2015 and the same inner tube is still in situ and the repair has held.
     
    • Like Like x 3
    • Informative Informative x 1
  3.  
    Fordulike

    Fordulike Pedelecer

    Joined:
    Feb 26, 2010
    Messages:
    2,850
    Likes Received:
    697
    Location:
    Tyne and Wear
    That's encouraging as it's a slime filled tube that's on there :)
     
  4.  
    jdallan

    jdallan Pedelecer

    Joined:
    Jan 18, 2013
    Messages:
    244
    Likes Received:
    98
    I posted recently about a very similar incident involving punctures from hawthorn trimmings. Fortunately my tube was "slimed" so I made the 5 mile run home without having to tackle a repair with arthritic fingers in the encroaching darkness. It transpired that there were three separate punctures so I replaced and re-slimed the tube.

    Jim
     
  5.  
    Fordulike

    Fordulike Pedelecer

    Joined:
    Feb 26, 2010
    Messages:
    2,850
    Likes Received:
    697
    Location:
    Tyne and Wear
    It goes to show, Schwalbe Marathons plus slime tubes, really do make a great partnership.

    If the tyre pressure hasn't dropped by tomorrow, then I'm just going to leave things be.
     
    • Agree Agree x 2
  6.  
    oldtom

    oldtom Pedelecer

    Joined:
    Oct 7, 2013
    Messages:
    1,900
    Likes Received:
    1,107
    These reports on the efficacy of the slime product are causing me to lean towards using it in my tubes regardless of the fact I have MPs front and back. My reason is simply that I just can't be bothered with all the aggravation of mending a puncture at the road side, especially in winter.

    Cost-wise, it's not exactly a high price to pay for saving the aggravation and unlike a tubeless car tyre, it can still be repaired and re-used - try asking Kwik-Fit to do a repair on a slimed tyre! I bet the guys with tubeless bicycle tyres don't scrap them when they get a puncture in a slimed tyre.

    Tom
     
    • Like Like x 1
    • Agree Agree x 1
  7.  
    soundwave

    soundwave Pedelecer

    Joined:
    May 23, 2015
    Messages:
    5,465
    Likes Received:
    1,200
  8.  
    Fordulike

    Fordulike Pedelecer

    Joined:
    Feb 26, 2010
    Messages:
    2,850
    Likes Received:
    697
    Location:
    Tyne and Wear
    Woooo, the tyre held pressure overnight and on return from a 15 mile ride.

    Marathon Plus tyres and slime tubes must come a very close second to tubeless tyres. This combo is definitely worth considering if you need reliable puncture protection.

    Still worth taking a mini pump along too though, as you do lose a bit of pressure until the sealant works its magic.
     
    • Like Like x 3
  9.  
    Benjahmin

    Benjahmin Pedelecer

    Joined:
    Nov 10, 2014
    Messages:
    490
    Likes Received:
    163
    Location:
    West Wales
    So are these tubes you've put slime into, or tubes bought with slime in them?
     
  10.  
    Fordulike

    Fordulike Pedelecer

    Joined:
    Feb 26, 2010
    Messages:
    2,850
    Likes Received:
    697
    Location:
    Tyne and Wear
  11.  
    Benjahmin

    Benjahmin Pedelecer

    Joined:
    Nov 10, 2014
    Messages:
    490
    Likes Received:
    163
    Location:
    West Wales
    Thanks, think I'll investigate this some more 'cos we're coming up to hedge flaying season and there'll be crap all over the lanes. They are, of course, supposed to clear it all up. Yeh right:p
     
  12.  
    oldtom

    oldtom Pedelecer

    Joined:
    Oct 7, 2013
    Messages:
    1,900
    Likes Received:
    1,107
    What psi are you running on slime-filled tubes? I generally run my MPs at 60-65psi although that's a little firmer than many people like on 28" wheels.

    Tom
     
  13.  
    Fordulike

    Fordulike Pedelecer

    Joined:
    Feb 26, 2010
    Messages:
    2,850
    Likes Received:
    697
    Location:
    Tyne and Wear
    35psi.
     
    • Agree Agree x 1
  14.  
    oldtom

    oldtom Pedelecer

    Joined:
    Oct 7, 2013
    Messages:
    1,900
    Likes Received:
    1,107
    Blimey! I run my wheelbarrow at 30-35psi. It sounds a bit draggy to me on 28" rims but if you have experimented a bit and find 35psi adequate, I may give it a try.

    Thanks for that,
    Tom
     
  15.  
    Fordulike

    Fordulike Pedelecer

    Joined:
    Feb 26, 2010
    Messages:
    2,850
    Likes Received:
    697
    Location:
    Tyne and Wear
    Mine's got a lot of torque, so I don't notice any drag.
     
    #15 Fordulike, Jan 12, 2017
    Last edited: Jan 12, 2017
    • Agree Agree x 1
  16.  
    anotherkiwi

    anotherkiwi Pedelecer

    Joined:
    Jan 26, 2015
    Messages:
    3,732
    Likes Received:
    1,252
    Location:
    The European Union
    I have never run tires over 43 PSI!
     
    • Agree Agree x 1
  17.  
    Benjahmin

    Benjahmin Pedelecer

    Joined:
    Nov 10, 2014
    Messages:
    490
    Likes Received:
    163
    Location:
    West Wales
    Crikey, really? I run my Marathon +'s at 55, feels squidgy otherwise.
    On the slime tube front, seems that 700c tubes with schrader valves are a bit of a rareity.
     
  18.  
    Fordulike

    Fordulike Pedelecer

    Joined:
    Feb 26, 2010
    Messages:
    2,850
    Likes Received:
    697
    Location:
    Tyne and Wear
    Most of my riding is on woodland trails, so I inflate the tyres for grip rather than rolling resistance. There's no squidgy feeling, although I could imagine they would feel like this if ridden totally on hard surfaces.
     
  19.  
    Benjahmin

    Benjahmin Pedelecer

    Joined:
    Nov 10, 2014
    Messages:
    490
    Likes Received:
    163
    Location:
    West Wales
    Gotcha. My riding's on tarmac although that's an approximate description on a lot of the smaller lanes around here .
     
  20.  
    tommie

    tommie Pedelecer

    Joined:
    Mar 13, 2013
    Messages:
    237
    Likes Received:
    57
    Location:
    Co. Down, N. Ireland

Share This Page