Are rollerbrakes *that* bad? New one adjusts to the same halfway position as old one, still almost no braking power. : r/bikewrench
Roller brake unit with fin SHIMANO Bicycle Brakes - Color: Silver / black, Specification: With cooling fins, Type of Brake: Roller brake | MonotaRO Vietnam
Drum brake (& roller brake) pros and cons | BikeGremlin
Roller Cam Brakes: Adjustment and Compatibility - Where The Road Forks