Walker Stalker

On the back brake comment - I have recently purchased a 1998 Techno - was a bit ratty but have worked on it to get it to a reasonable standard but the back brake was the hard one. I worked out that you don't get enough stroke on the master cylinder piston by using the back brake lever so I removed it and used a T handle Allen wrench with the ball end on it to bleed it through - I basically gives the piston more stroke to push out the air. It took a couple of goes - bled it rode it around then re bled it but managed to get a reasonable pedal - I also found that the actuating arm (between the pedal and the master cylinder) doesn't seem to have enough length - even when you wind up the thread to maximum and lock it off the brake is still lacking. I took a longer threaded 6mm bolt (an old engine case bolt from a previous project) which is about 20mm longer and rounded the end - this allows the master cylinder to be engaged further and I can now lock the rear wheel. A bit of fiddling around to get it to work but very satisfying when you can get a nice solid brake on the rear. Hope this helps. I have attached a Pic of my Beta - not an oil painting and later decals are fitted but it mechanically its just about there now.