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The Spoke Curriculum - Session 1: Difference between revisions
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The Spoke Curriculum - Session 1 (view source)
Revision as of 03:53, 28 February 2012
, 28 February 2012→Specific Skills
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| Drive Train | | Drive Train | ||
| | | Creaking and squeaking noises are annoying, and can be a sign of more serious problems. Damage to parts may result if they are left unattended. If during a ride you hear a creak or squeak once per revolution, it is probably located in the crankset and pedal area. If the noise is once every 2 - 3 revolutions, it may be in the chain. | ||
The most common cause of creaking is the crank being loose on the spindle. Remove the crank bolts, lubricate the threads and under the bolt head, and re-install. | |||
On some cranksets, the individual chainrings are replaceable, and are held to the cranks by chainring bolts. Use a hex key wrench and check each bolt. Hold the back chainring nut from spinning with a chainring nut wrench. | |||
Tighten pedals into crankarms. Pedal bearings can also creak. Spin the pedal and listen for noise. | |||
The bottom bracket may not be properly secured into the frame. Most bike frames use a threaded bottom bracket shell. If the bearing cups or retaining lockring are not tight, there may be movement between the internal and external threads. | |||
Listen for dry links by spinning the chain in a repair stand. Lubricate as necessary, with a drop of lubricant on each roller and rivet. Look at each and every rivet to check misalignmet in the chain plates. Inspect for twists in side plate, or burrs, cuts or other damage to the side plates. Place chain in a gear combination that relaxes the rear cage, and spin chain backwards. If the chain hops as it passes of the pulley wheels, it may have a tight or rusty link. | |||
loose spokes | |||
spoke protector | |||
frame cracks | |||
saddle | |||
headset | |||
stem & handlebars | |||
cassette lockring | |||
| http://www.parktool.com/blog/repair-help/trouble-shooting-a-creaky-or-noisy-drive-train | | http://www.parktool.com/blog/repair-help/trouble-shooting-a-creaky-or-noisy-drive-train | ||
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