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ChristoErasmus

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    Gauteng
  1. Recently I decided to try a different brand of tyre - just because... they were marked 29x2.25 (ETRTO 57-622) and hours of reading reviews I gave it a go. I mounted these tyres on a 25mm ID rim which is 2mm wider than the rim used by the manufacturer's reference measurements. The tyres were no where near the expected width of 2.25 inch or 57mm, they measured 53mm which is the width of a 2.1 tyre. Don't get me wrong, 4mm is not a lot but visually on a tyre you will be amazed at the difference in volume and appearance. I started measuring the new tyre after taking it off the rim and found that the width from bead to bead was 138mm compared to the 150mm of all the other 2.25 tyres (ETRTO 57-622) I could get my hands on. Taking the formula for the circumference of a circle (c = 2*pi*r) and adding the width of the rim to the width of the tyre it was clear that the 12mm difference was the reason for the loss of width and volume. This story is to make you aware of the fact that regardless of the numbers printed in the rubber you still may end up with a tyre that is not what you expected. When trying a different tyre, measure the width from bead to bead (across the tread) before buying.
  2. Thanks for sharing your data... but really - keep your sarcastic crap to yourself.
  3. Thanks for sharing everyone. I appreciate your time and effort to respond.
  4. Does anyone have some real world data about heart rate measured by wrist, arm and chest straps? Is the variance significant between the three methods? I have read numerous posts on the topic and all suggest that chest is most accurate followed by arm and then wrist but numbers are lacking the posts. What I am trying to find out is if the measurements from any of these are way better than the other or is it safe to assume that with the "latest" technologies the measurements are fairly accurate and reliable. Thanks in advance.
  5. Oh Boy! Opening up the snake pit here... Let's not go down there. I think the Hub is the right place, same country with enough people to throw random comments into the pot. Thanks Guys!
  6. Hi Everyone, If the tyre in the attached photo was yours, would you think that the cracks starting to show is normal wear and tear considering that the tyre is not even a year old? I'd like to hear your thoughts.
  7. Did you manage to get one? I need one too.
  8. Today I need to rave (without the rant - well, maybe a little). Monday I walked into the local bike shop looking for a freehub, I had "sell me something" written all over my forehead, I walked out with the advice that the freehub was fine, will last at least two more years. What does that matter when I WANT a new one? In any event, I found on bikehub that evobikes.co.za is a supplier of Novatec spares and today out of stormy Cape Town I have in my hand a fresh freehub waiting to do duty. Thank you Evobikes for the excellent service and help to find the right freehub and speedy delivery.
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