The most common way to keep a bike vertical has been to hang the front wheel.
With this way, the weight of bike itself concentrates on a rim.
However our "crank stopper mechanism" solved this problem. Because we keep your bike vertical with the crank, not with the front wheel.
You can set in and take out the bike smoothly by utilizing the characteristic of the crank which does not turn in the order direction unless a rear wheel turns.
Even the bike with deep rims or carbon wheels can be suported by our system.