Are rollerbrakes *that* bad? New one adjusts to the same halfway position as old one, still almost no braking power. : r/bikewrench
How to adjust rollerbrakes on Shimano Nexus system - YouTube
Tuto : graisser des freins Shimano Roller Brakes - Oklö - biclou pratique
Roller brake unit with fin SHIMANO Bicycle Brakes - Color: Silver / black, Specification: With cooling fins, Type of Brake: Roller brake | MonotaRO Thailand
Shimano Nexus DH-2R30-J Dynamo Front Hub Silver 36