Bicycle Invisible Repair Tool Chain Cutter Set Multi Portable Kit Hexagon Screwdriver
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I ’m honored to tell you,
We developed the second generation of hidden crank tools,
It will have chain Tool function,
Better quality and more practical function.

Let's take a look at its true face!
Compatible with: shimano M985 M980 M970 M9020 M9000 M8000 M7000 M6000 M820 M590 M591 M660 M610 M612 M615 M627 M640 M670 M675 M770 M780 M785














This is a tool that can be hidden inside the crankshaft, which can be with you all the time.
When you need it, you can have it right away.
Which uses high-quality steel shaft Neodymium magnet adsorbed above, to prevent loss during cycling.
This is a great invention, buy it right away and you can have it.
It is compatible with most steel shaft sprocket wheels on the market.
Compatible with: shimano M985 M980 M970 M9020 M9000 M8000 M7000 M6000 M820 M590 M591 M660 M610 M612 M615 M627 M640 M670 M675 M770 M780 M785