Mountain Bike Disc Brake Conversion
Strong and reliable brakes are a must for serious mountain bikers. Disc brakes are the brake of choice for many riders, and they come stock on most high-end mountain bikes. Disc brakes provide greater stopping power in dry and wet conditions and require less maintenance than other brake types. For many bike models not already equipped with disc brakes, a disc brake conversion is possible.
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Determining Compatability
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Converting to disc brakes isn't always an option, so make sure your bike is compatible. There must be a brake mount on the left side of the frame's rear triangle. Your fork must also have a brake mount toward the bottom of the left leg. Finally, both wheels must have disc-brake ready hubs, so that the rotors can be mounted to them. While you can upgrade the fork and wheels, it may be wise to compare the price of upgrades with the price of a new bike already equipped with disc brakes.
Purchasing Disc Brakes
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While there are many disc brakes available, they are broken down into two main categories: linear and hydraulic. Linear disc brakes are cheaper than hydraulic brakes and easier to service. They are also heavier and weaker. As of 2010, hydraulic brakes are the top of the line. Before choosing a set of disc brakes, weigh the pros and cons. A casual cross-country rider may not need the same stopping power as a downhill racer.
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Removing Old Brakes
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Instead of throwing out the old brakes, put them in a spare parts bin, sell them or donate them. After removing the old brakes, the mounting bosses will still be on the frame and fork. Some riders choose to grind away the old bosses. If you decide to take this step with your bike, just remember that once the mounts are gone, you cannot return to the old brake system.
Installing Disc Brakes
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If you are installing hydraulic brakes, be careful not to actuate the brake lever until installation is complete and the rotor is centered in the caliper. Squeezing the lever before the brakes are properly mounted will cause the caliper to clamp shut. You will need a wide flat-head screwdriver and a lot of elbow grease to get it back open. The brake pads used with all disc brakes must also be treated with care during installation. If any oil or lubricant comes into contact with the pads, it may ruin them.
Breaking in Disc Breaks
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During your first few rides with a new set of disc brakes, you may be disappointed with the performance. Don't worry. The brake pads and the rotors have a thin protective layer on them from the manufacturing process that will soon burn off. Avoid heavy braking during at first, as it could cause the pads to glaze over. Once you feel the braking power increase, you can begin to normal use.
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References
- Photo Credit mountain bike detail one image by Doug Stacey from Fotolia.com
