Bottom bracket holder 40x40 without bottom bracket (Alligt)

Bottom bracket holder for older Flevobike trike, bike and racer. It is delivered without bottom bracket. For the Bike, Trike and Racer you will need a standard bottom bracket of 119 mm with BSA treads. It will also fit other bikes with a frame tube of 40 x 40 mm. On the housing there is a little "k". This is the right side where your crank with the chain wheel goes.See the last photo also.