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Symptom Probable Cause Corrective Action Recommended Tools
KNOCKING IN
RHYTHM OF
PEDALING
Crank and Shaft
Swing Arm Bearings
• Remove main body cover.
• Check crank arm nuts for tightness.
• Is noise coming from the crank area
• If yes – remove crank, check shaft and
crank for damage.
• Replace parts as needed.
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• Check the moving arm bearing for
noise.
• Tighten nut and check for noise.
• If noise continues – replace moving arm
assembly.
Multi-meter
14mm socket
21mm socket
27mm socket
Support Services 800-883-8783 Mon-Fri 8:30am-5:00pm Central Time Zone Fax: 636-272-7148
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