Brakes levers stopping motor? How to fix?

[m@Robertson]

Why don't they need lubrication? That doesn't sound right to me.

I'll pile onto what @fooferdoggie and @TrevorB answered on this. Quality brake cables are treated so they are slick forever. Add your own lube and you are either fixing a quality problem only temporarily, or causing one down the road on a system that would not have gotten gummed up.

Just as important is the use of compressionless housing. That makes cabled brakes work a LOT better, although imho they are still far inferior to hydraulics on several fronts, but thats a whole different forum jihad, so I'll stop right there

A Jagwire Mountain Pro brake cable kit is about US$34 and has compressionless cable housing (kevlar lined), plus the housing is pre-lubed and the cables are polished. So... not expensive and since you are likely replacing lowest-cost brake housings, you are probably going to get better braking every time you squeeze the levers.

 

[Rome]

Yeah I replaced my stock cables with Jagwire 300 + miles no issues gear changes are precise.