Would I buy the Riese and Müller Load 60/75 again?" - German critical blogpost detailing long-term user experience of the R&M Load series, pros & cons, Google Translate does a reasonable job. :
THE 2018 ROADSTER FROM RIESE & MULLER | Electric Bike Forums - Q&A, Help, Reviews and Maintenance
OldMan54s Riese & Müller Supercharger mit Bosch CX (Quick&Dirty) – Auf jeden Fall bergauf
Looking forward to using my new 2020 Riese & Muller Tinker | Electric Bike Forums - Q&A, Help, Reviews and Maintenance