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Cable disc brakes work well in all conditions. Even so, check the brake cables regularly for signs of fraying and keep them well lubricated. If the brakes do not release quickly when you let go of the brake lever, they need lubricating. Check brake travel, too, since excessive travel can mean that the brake pads are worn.
When you examine old brake pads, look at the way they are wearing. If they have developed a ridge, or the wear is in any way uneven, the caliper may need to be realigned.
When lubricating your bike, make sure that the lubricant does not fall on or touch the brake discs or pads. Do not even touch the disc or pad faces, because the grease from your fingers can easily affect their performance. Always clean the discs with denatured alcohol.
Parts of a Cable disc brake (front)
Cable housing; Brake cable; Brake caliper; Brake disc; Hub
Adjusting cable travel
1. Loosen the cable-clamp bolt on the caliper and pull through enough cable, with pliers or a cable-pulling tool, to take up any slack in the cable.
Tighten the clamp bolt. This will reduce the travel on the brakes and is a necessary adjustment if the brake levers need to be pulled a long way before the brakes work.
2. Screw out the barrel adjuster to reduce brake travel. The adjuster is just above where the cable housing sits on the caliper body.
3. Align the calipers with the discs using the adjustment bolts. Undo these bolts, align the caliper so that its sides are parallel with the disc, and then tighten.
1. Replace the pads if the brakes are still not working effectively or if they are worn.
2. Insert the new brake pads and secure them with the Allen bolt and the spring clip.
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