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Finger numbness, aching palms, tingling sensations - the problems with your hands when mountain biking can be broken down into a simple physical formula: Pressure is force divided by surface area. Maximum pressure is exerted on the smallest surface area on the round grips. This primarily affects the median and ulnar nerves. The result: either the thumb, index and middle fingers fall asleep, or the ring and little finger go numb. Depending on whether the pressure is on the inside or outside of the handlebars. The solution to these problems is rather complex: How do you increase the surface area on a round handlebar? Some manufacturers use a relief wing on the outside of their grips. This noticeably reduces the pressure on the ulnar nerve. However, if the wing is too large, off-road capability suffers and there is an increased risk of crushing the median nerve instead.
You can conveniently download the complete comparison test of six ergo grips from BIKE 7/20 as a PDF below the article. The test costs 1.49 euros.
Why not free of charge? Because quality journalism has a price. In return, we guarantee independence and objectivity. This applies in particular to the tests in BIKE. We don't charge for them, but the opposite is the case: we do charge for them - tens of thousands of euros every year.
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You can find this article in BIKE 7/2020. You can read the entire digital edition in the BIKE app (iTunes and Google Play) or the print edition in the DK shop reorder - while stocks last:
Stefan Frey
Editor
