The single-wheel China believes that the Nimbus unicycle is not complicated, but it needs a little maintenance.Here are some key points:When the Nimbus wheelbarrow has a crank: stop cycling and tighten it immediately.Let it go on and your crank and flower drum don't want it.The sound comes from the pedal of Nimbus wheelbarrow, which is often mistaken for spokes.Square hole crank: twist the nut of the crank and tighten it with a 14 mm sleeve (or 8 mm hexagonal).Spline crankshaft: both sides are tightened with 8 mm inner hexagon wrench.Spokes rang: although this is not common in the Nimbus unicycle, but spoke after a period of telescopic movement can really make the wheels strength weak, adjust the wheel seems to be a very professional job, but if be careful for it is not difficult for a layman.If only the Nimbus spokes are spokes loose but the wheel is not deflated, and the spokes are used to pull each of the spokes up to 90 degrees, careful not to miss each one until the spokes are pulled tight.Step down: stop!Keep your seat in front of you, and check that the Nimbus unicycle has its feet in the wrong direction, and if it's loose, it's going to go down.This is a 15 millimeter plate.If the foot and crank have been damaged, you can buy unicycle.com, a single-wheel Chinese online mall, and we have a relatively Nimbus spare parts for sale in China.In short, you can submit your special order at any time, and we promise to send it to you in the shortest time.