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Brakepad

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Posts posted by Brakepad

  1. only some carbon or super lightweight bars might have an issue with cutting too short as the area where you tighten the brake lever/gear shifter clamp might be not strong enough. But a standard aluminum bar shouldn't be a problem specially for a light youngster

  2. Morning All

     

    My journey is complete.

     

    Many thanks to all who gave feedback.

    The bikes in the segment I was looking for was fairly similar each with its own pro's and con's, the final selling point me me was the customer service and willingness to go the extra mile that landed the sale for Velosport in Paarl, besides the fact that the bike is really awesome. 

     

    The Owner and salesman organised a Demo bike that I had for 2 days. It took him 2 weeks to get the bike but that was outside his control. He drove through to Cape Town to collect the demo bike at his own cost.

     

    Today I can report back that I am the happy owner of a Giant Trance Advanced Pro 29 1 2019.

     

    Kudo's must also go to the guys at Bike Addict in Malmesbury.

    Velosport in Paarl … isn't the owner Llewellyn ? great guy , great knowledge , big kudo from me !

  3. Just found this on the web about a SON Dynamo:

     

    When you hold the wheel or hub in your hand and turn the axle, you'll feel a lot of resistance. There are 26 poles and 26 magnets in the SON28 hub (fewer in the SONdelux). That creates 26 points around the hub shell that the axle wants to settle in, and a corresponding 26 points where the axle doesn't want to be. In the transitions between those points, the axle wants to turn in one direction or the other, to find the point where it wants to settle. As you ride, the hub turns relative to the axle, and 26 times in each rotation of the wheel, the hub wants to turn one way, and then the other, theoretically speeding you up and slowing you down, 26 times per rotation. At speed, the effects of these two forces almost completely cancel each other out, leaving you with extremely low drag overall. It's only when you don't have a lot of mass (your weight) and inertia (your speed) that the effect is to actually retard the rotation of the hub axle. So there's no reason to be concerned about the way the axle feels when turned by hand.

  4. I have seen lots of dynamos hubs and serviced them back in Europe. You can not turn the axle due to the magnets and stuff , if you turn the wheel without a tyre while holding it by the axle it feels slightly rough (very rough on the cheapies) if you do the same with a tyre you should not feel any imbalance(maybe at very low speed) and if you ride it you should not feel any different to a normal hub.

    So if there is anything wrong with the bearings you can not feel it , maybe hear it or see it when taking it appart

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