I have a set of these but the levers are dropping to bits and I cannot find spares (there seems to be lots of fiddly bits associated with these levers). Are there other disc brake levers on the market that will operate the B4 calipers?

Weren’t those OEM? I’d just get another set.

Had a set of these years ago. The little plastic “dogbone” was the weak link.
Uk bike store used to have parts. Probably obsolete now 🙁

Cheers guys. I tried UK Bike Store but guess what, they didn’t have the bits I needed 🙁

Hey gofasterstripes, What’s the abbreviation “OEM” please?

Hi, I might have slightly misused it actually. I mean they usually came on complete bikes. As such they should be cheap to buy complete as people tend to swap them out if they have brakes they favour.