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The Topeak Ninja Series includes tools that go inside your handlebars, a multi-tool that stashes at the bottom of your water bottle cage, as well as a pump that can be stored inside your seatpost.
The tools fit inside any standard sized mountain bike or road bar as they replace the end-caps on your grips. The Ninja-P pump can be pulled out of your seatpost when needed.
Credit
Brandon Turman
