I’ll figure out to do with the brake lever. Thanks for all the input. For now, I set up operation and it worked well after some adjusting on the caliper.
So next I wanted to see about getting the drag brake working. When I restored my last Huffy Twin stick, I don’t remember the BMX brake knurl being too wide to clear the bottom of the shift arm, but I’m having that problem now. So to get around it I installed it vertically, which is causing a couple issues.
This is the brake at “rest”. The drag lever’s “fingers” at the bottom straddle the cable, then will catch the knurl.
Here’s the start of the engagement. The fingers catch the top of the knurl and push the cable down. It’s actually kinked the cable because of this.
Halfway through the pull the cable straightens out as the lever catches the full length of the knurl.
At the end of the “stroke” the forward housing is forced out of its seat. But the disc brake is fully engage and the rear wheel is locked up.
So… the questions:
- Is the knurl a problem? The only other thing I can think to use would be a fishing lure weight crimped to the cable. But would that be permanent? I’m open to suggestions.
- A spring was part of the original assembly, but I don’t know how it was used. As I showed you previously, there was a very long housing seat on the first Twin Stick I had. Maybe that was to keep the housing contained when it pushes back? So I can do that again. But I’ve seen a spring inside that, and I’ve seen a spring in front of the knurl. Neither makes sense to the operation. So I’m open to guesses. I’ve seen one without a spring too, so who knows.
Anyway… it’s close. Major progress! I just want to get the drag brake settled before I call the bike operationally set.
