Track Pump kills my wheel

Track Pump
Track Pump

So this is my track pump. A sound investment that eliminates hours of painful handing pumping each year. Four or five depressions of the top handle will get most tyres up to 60 PSI.

So I had to get a replacement inner tube this weekend. I didn’t quite know the size so the guy in the shop gave me the best fit he could from a rim measurement but not much else. It was a pretty tight fit to get the tube over the rim (Hmmm should have paid attention to that) but  I’ve had this before with new inner tubes before. I had got new tyres the week before so I thought, new tyres, new tubes, lets take it up to 80 PSI. I normally inflate to 75 PSI but the tyres and tubes were rated to 100 PSI.

Well we got to around 70 PSI pretty fast and everything was hunky dory. I squeezed the tyre and it didn’t seem particularily drum tight. So I hit the pump are a few more times and KABOOM!

When my ear drums recovered I was looking at this,

Exploded Rim
Exploded Rim

Well the inner tube was shredded by a rip about a foot long and that long white bendy piece in the picture, well thats the rim of the wheel.

Lets just say, I’m gonna be a bit more respectful of the power of the track pump in future.

2 thoughts on “Track Pump kills my wheel

  1. Joe, Those track pumps are designed for racing (road racing) bikes with a tyre pressure of 120PSI (sometimes a bit more, trust me, I’m a fat cyclist).

    The kaboom-ie nature of your incident is sort of unexpected.

    Remember, when in doubt, bring the wheel (or at least the matching one)

    Like

  2. Yip. Similar experience although the explosion happened as I was cycling down a busy street at full pelt. Only realised it was me when I felt the crunch and grind in the back wheel

    Like

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