I briefly consulted the manufacturer and received the following answer:
It mainly depends on the leg length, namely the inner leg length, measured according to the picture in the appendix from point 4 to point 2. If this length is more than 96.5 cm, then we recommend the use of an extended roll bar - this can be ordered separately. However, we have only once had the case of a gentleman under 2.05m tall, this gentleman was 2.03m tall but had disproportionately long legs, therefore he needed the extended roller rail. Normally, it only becomes a problem from 2.07m.

Picture : https://ibb.co/sKKVZjR