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Discussion Starter · #1 · (Edited)
Noob here...

I've had my Motobecane (from bikesdirect) for 1200 miles, and just noticed that the three outer sprockets on the cassette seem to have broken/malformed teeth.

The thing is, I spend no time on the outermost sprocket, so I don't see how I could've broken a tooth on that one.

Is this a design feature to aid in shifting? Or is my cheapo bike breaking after so few miles?

BTW - I haven't noticed any problems shifting. It's just something I noticed visually...
 

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SRAM Cassette? If so, it's by design.

feh said:
Noob here...

I've had my Motobecane (from bikesdirect) for 1200 miles, and just noticed that the three outer sprockets on the cassette seem to have broken/malformed teeth.

The thing is, I spend no time on the outermost sprocket, so I don't see how I could've broken a tooth on that one.

Is this a design feature to aid in shifting? Or is my cheapo bike breaking after so few miles?

BTW - I haven't noticed any problems shifting. It's just something I noticed visually...
 

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Discussion Starter · #3 ·
thinkcooper said:
SRAM Cassette? If so, it's by design.
I don't know the manufacturer of the cassette. It's a Moto Record; do they commonly use SRAM cassettes?

The teeth aren't completely missing, as I saw an image of when searching other threads. It's as though the corner of the tooth is missing.
 

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The teeth on Shimano and Sram cassettes are "profiled" to promote quick and smooth shifting. This is 100% normal and I'm sure that is what you see on your bike
 

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feh said:
I don't know the manufacturer of the cassette. It's a Moto Record; do they commonly use SRAM cassettes?

The teeth aren't completely missing, as I saw an image of when searching other threads. It's as though the corner of the tooth is missing.
Take a look at the lockring of the cassette it should give the make and model. That said, as others said, it's probably a normal design feature of the cassette.
 
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