The “mortise” is the recess where the tenon goes. It can be cut by hand with a mallet and mortising chisel, or mechanically with a mortising machine and a hollow chisel bit. If you don’t have those ...

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While aluminum is a very popular choice for bicycle frames, the welds which join the tubes together leave a lot to be desired. Vanpowers Bike's City Vanture ebike takes a different approach, by having ...