It's #askgmbn where we answer all your mountain biking questions that you've either left in the comments in this weeks videos or emailed into us. We've got a tonne of questions this week and all 4 presenter's in the shed...so let's get going!

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On this week's Ask GMBN, we answer more manualling questions, what's the best wheel size for shorter riders, and how to learn how fast you need to go to clear a gap.

If you'd like to contribute captions and video info in your language, here's the link

Watch more on GMBN...
4 Skills To Know Before Riding At Night
Five basic tricks to learn
Tuning an Air Shock
Building a beginner jump

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