WTB G12-0309, V 15, HU1-0508-1, IU2-0508-1, GI3-0309 user manual a. Maintenance, b. Service and Repair

Although many catalogs, advertisements and articles about bicycling depict riders engaged in extreme riding, this activity is extremely dangerous, increases your risk of injury or death, and increases the severity of any injury. Remember that the action depicted is being performed by professionals with many years of training and experience. Know your limits and always wear a helmet and other appropriate safety gear. Even with state-of-the-art protective safety gear, you could be seriously injured or killed when jumping, stunt riding, riding downhill at speed or in competition.

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a. Maintenance

WTB LaserDisc hubs use sealed bearings and protected mechanisms; but, like anything mechanical, they are subject to wear and corrosion from moisture, dirt and salt. The best maintenance for your WTB hubs is to clean them with water and a soft brush or lint-free cloth.

Do not use water under high pressure to blast off dirt and mud. The water could penetrate the seals and damage the bearings and other metal parts.

Periodically lubricate the threads and cam surfaces on the quick release skewer or the threads on the axle bolts of the Single Duty hub.

Before each use, check brake wear and operation; spoke tension, rim wear, damage and trueness; and tire fit, wear, damage and inflation. Spin each wheel slowly and look for any signs of damage: dents, bulges, cracks, or deformation of the rims. Check spoke tension, by spinning the wheel to make

sure it is true (no side-to-side wobble, no up-and-down hop); by squeezing pairs of spokes to make sure none are loose or broken; and by plucking each spoke to make sure they all sound about the same. If you discern a difference in tension when squeezing two adjoining spokes or in the pitch of the sound of a plucked spoke this may indicate a significant difference in that spoke’s tension. If in doubt about spoke tension or wheel trueness, do not ride the bike. Take it to a qualified bicycle mechanic.

With rim brakes, check that the wear indicator on the sidewall braking surface is still clearly visible.

Before every ride, check the tires for excess wear, cuts in the tread and cuts or

bulges in the sidewall. Check the tire pressure of both tires. The tire’s pressure rating is marked on the sidewall.

CAUTION: Spoke tensioning and wheel truing is a highly refined skill which requires expensive special tools and experience. Do not attempt to tension or true a wheel unless you have the knowledge, experience and tools needed to do the job correctly.

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WARNING: Do not ride a bike with a damaged tire or rim. Riding a damaged tire or rim may lead to sudden tire deflation or improper braking function. Sudden tire deflation or improper braking function can cause loss of control, resulting in serious injury or death. Replace damaged tires and rims before riding the bike.

Never inflate a tire beyond the maximum pressure, or ride a tire with less than the minimum pressure marked on the tire’s sidewall. Exceeding the recommended maximum or minimum pressure may cause sudden tire failure. Tire failure can cause loss of control, resulting in serious injury or death.

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b. Service and Repair

We strongly urge you to have any servicing or repair of your WTB components done by a qualified bicycle mechanic with the appropriate tools, knowledge and experience. If you believe that you are qualified to service, replace parts or repair a WTB component, please download, read and follow the Service Instructions at wtb.com/tech/serviceinstructions for the component which you plan to repair.

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