Z powodzeniem wiele ludzi stosuje ten mod w 9x0. Do jazdy na kostkach na prawdę nie wykorzysta się siły hamowania dwiema tarczami. Afra ma 310mm z 4tłoczkowym zaciskiem.
Np camel adv lata z jedną tarczą właśnie z pompą od cb500 i bardzo sobie chwali.
https://www.advpulse.com/adv-bikes/c...in-bike-build/
https://advrider.com/f/threads/afric...#post-35235689
If you simply remove one caliper/rotor but keep the stock master, you'll get a very stiff brake lever and crappy braking power. However, if you replace the master cylinder with something more appropriately sized, it's a non-issue. There are 900lb Harleys that have a single caliper and rotor up front and stop just fine even with 2 people and luggage on them.
A master with a smaller bore is a must. I swapped the stock AT unit out for one from a CB500X (about $100). Now my braking is back inline with a stock AT. FYI, I'm 290lbs in gear and just got back from a 10 day California bike trip where I was fully loaded with camping gear, tools etc and had no issues with braking power or fade. YMMV
Z pojedynczą tarczą nat będzie hamować zdecydowanie lepiej niż XRV z dwiema, a na kostkach i tak nie przekraczam 120-130.