Rear Modolo brake pinch bolt won’t pinch 🤔

[legrandefromage]

a washer is required

 

[bikeworkshop]

I’ve had it apart again this afternoon noon. The slot and nut appear to be in good order with minimal wear so I conclude the brake cable gauge is too small to be clamped effectively. There’s no problem with the front brake on the same cable. I’ve measured the cable diameter at just 1.4mm.

Shimano brake cable is 1.6mm
That usually works.

1.4 seems a little narrow.
It's lost in the groove

 

[bulgie]

Shimano brake cable is 1.6mm
That usually works.

1.4 seems a little narrow.
It's lost in the groove

I seem to remember Modolo cables were 1.8 mm, but the memory is foggy, don't trust it.

Oh wait I have one, measured it, it's exactly 1.8 mm.
I know it's Modolo because it has their "M" logo stamped in the end.
This is from a Professional set from about '80-'81.
Flash was later and a bit cheaper so maybe they were shipped with smaller cables, dunno, I never had any Flash brakes myself.

 

[Nob]

I’ve got/had Modolo Speedy brakes couple with 1.6mm Clarke’s inner cable & no issues with the pinch bolt.