Tandem-Bicycles special rear seat stem. is fixed to the front seat tube when used on Tandem-Bicycles.
So it is very easy to install. This is a very good replacement part for bicycle repair.
Because the length can be adjusted, you can also have a comfortable riding experience for the rear seat.
Of course this stem is also suitable for ordinary bicycle forks.
The length of 210-260 can effectively extend the length of the whole bike specific to your use of the way to adjust.

Length: 160mm-200mm
Bottom fixing diameter: 28.6mm
Applicable handlebar diameter: 25.4mm
Weight: 380g
Surface: black sandblasting
Material: aluminum alloy
Package 1×Extendable stems