here we have a dual cable brake levers that will operate both brakes at once. was bought for a project and never got used and has been stored ever since so is a bit grubby although it's never actually been used
Promax BL-47 Dual Cable Brake Lever - Right, Long Pull, Aluminum, Black
Shimano Claris BL-R2000 Flat Bar Dual-Pivot Brake Lever Left Right Set
Shimano LX M565 8 Speed Dual Action Brake Lever Shifter Set Not Working
Dual cable bike brake Brake Lever , Left or Right, one hand operates 2 brakes !
Dual cable cycle brake Brake Lever , Left or Right, one hand operates 2 brakes
Single Hand Dual Cable RIGHT Brake Lever double pull MTB Bike Caliper Cantilever
