Squeaking Noise from the Rear Wheel

While on a routine cleaning session, heard a squeaking noise from the rear wheel. It would occur at one point both when the wheel was rotated clockwise & anti-clockwise. I could bear with it as the noise was low, however, thought of investigating further.

On reaching the Mechanic Shop, we discussed about the recent changes done, whether the Bullet met with an accident, could it be a tight chain or some foreign material stuck in the rear wheel assembly. The only way to find out was to eliminate the reasons one after another:

• Recent Change - was the new rear sprocket & chain
• Met with an accident - NO
• Tight Chain - NO, the slackness was right with the links straight & no bends
• Foreign Material - found none on dismantling the wheel

On careful observation, we noticed that the sprocket had rubbed against a part of the wheel hub leaving behind a trail in the form of an arc ~ 2 inches in length. So it was the new sprocket causing the squeaking noise.

Two ways to fix this, file the extra casting on the sprocket or insert a thin spacer between the brake shoe & the wheel. Since he did not have a flat file, inserted a spacer & the problem resolved.

I have to keep in the mind the spacer when I remove the wheel again.