Converting a 26-inch MTB frame to a 27.5-inch frame

Sometimes it is possible to modify an MTB frame designed for 26-inch wheels and adapt it for the new 27.5-inch format.

This is the case with this frame. After verifying the feasibility of this modification using a template, the practical work began: the wheel clearance between the chainstays was already sufficient, so it was only necessary to modify the bridge connecting the top tubes, reducing its size.

As can be seen from the photos, its thickness was reduced by about 1 cm and reinforced so as not to compromise its structural integrity.