Most velomobiles come with tiller steering, where the brake cable adjustment is done at the brake lever. That doesn’t work with the small adjustment range of the Avid Speed Dial brake levers of the tank steering in my Milan.
Since the brake cables for the front brakes are usually not adjustable similar to recumbent trikes, I had to build something myself. Again.
At Ebay I found brake cable adjusters for Moped rear brakes, but since they use M6 adjustment threads, they don’t fit into the levers of Sturmey Archer drum brakes.
That would have bin too easy, I guess.
rear: DIY Sturmey Archer brake cable adjuster, front: Moped brake cable adjuster
Hence, I’ve cut the Moped adjusters apart, cut a M4 thread into the stub and inserted a brass tube with a M4 thread into it. The brass tube is screwed into the steel part and secured by a few drops of Loctite 601 (high strength containing compound) on the thread.
The Loctite should prevent galvanic corrosion at least between the brass and steel part. Regarding corrosion, the material mix of brass, zinc plated steel and stainless steel is less than ideal, though. Should look interesting after the next winter.
The brass threads allow 35mm adjustment and are probably a bit too long. I’ll have to determine the best length later. To prevent unintentional loosening of the adjustment nuts, I’ve filed a radius into them and now they securely lock into the small round part, that locks into the lever (see last image), while being easily adjustable.
If the brass tube should break for any reason, the brake would still be operational, since the brake cable goes through it and is clamped at the end by two short M4 bolts.
The pair weights 39g. If I cut the steel part and the brass tube a bit shorter, change the stainless steel lock nut for a piece of rubber tube (the nut just prevents the whole assembly from falling apart when its not installed) I’ll probably manage to loose 4g… 😉
The installed brake cable adjuster.