Now your AM1 is almost complete we will set up the brakes before connecting the battery. You may find that when the brake lever is pulled the brakes are not engaging. The following steps detail how to fix this.
The most common issue is that the rim brake calliper has not been pushed close enough to the wheel before the cable was tightened.
To adjust this move the rim brake release lever up to the the unlocked position as shown in the image above.
Loosen off the rim brake cable using the 5mm hex key until it can move freely within the locking nut.
Once the cable is loose, use your spare hand to push the rim brake callipers closer to the rim. A good baseline is to push the rim brake until the pads are touching the rim on both sides. Then slightly loosen your grip on the rim brake calliper so there is a 3 to 5mm gap on each side.
Then whilst holding the rim brake calliper in position retighten the brake cable locking nut using the 5mm hex key. Make sure the cable cannot move.
When you push the brake release lever back down into position ensure the rim brake pads do not touch the rim.
Pull the brake lever and ensure that the rim brake pads are making a good contact with the wheel.
Make sure the brake lever does not touch the grips.
You can also use the barrel adjuster on the lever to change how near or far the lever is from your handlebars. If you unscrew the barrel adjuster from your brake lever this will change the amount of travel you have on your levers.
After set up there is more cable on the lower side of the rim brake locking nut. This means less travel of the brake lever is required to apply the brakes when you are moving.