Finally we have ready the first prototype of our titanium frame, valid for both the BOTT XR1 and the new cafe racer.
The difference in weight between this new titanium frame and the steel one that we use normally is very big.
Titanium has 57% of steels density (this means that it weights almost half) but it has also almost half modulus of elasticity. This means that just copying a steel design in titanium wouldn’t work, unless the steel frame was quite over-designed, which is not the case.
Although at first sight our titanium frame looks like the steel one, there are some differences that we will show you in a next post when we mount the frame on a bike.
We will assembly this first titanium frame on a quite special BOTT XR1 that we are building, which we will name BOTT XR1R. We will make several track tests with this bike to check how this frame performs.
A second titanium frame will be assembled on one of the cafe racers we are currently building. In particular, in the most special one which has carbon fiber rims, traction control, K-tech suspensions, Brembo brakes, etc.
This titanium frame will be another option to add to the special parts list to configure both the XR1 and the cafe racer.