Shark toothing on cranks.

[Milzy]

I bought a crankset for a future build. It’s in the garage for a few month. A mechanic pointed out that a couple of feet was shark toothed but most were fine.
Why don’t they wear more evenly is the question? Just the odd one.
He said the user was left leg favoured by the wear mark too. CSI bike shop.

 

[Sharky]

Photo please.
Some chain rings are designed like that to help shifting.

 

[Big John]

From my experience one shark tooth, all shark toothed. I've had a few where you could get pickled onions out of a jar with the outer chainring. Shame on me, I know ☹️

 

[fossyant]

There are often a few shaped teeth to aid shifting. They all go shark toothed when worn. Send us pictures.

 

[Milzy]

Photo please.
Some chain rings are designed like that to help shifting.

 

[Milzy]

There are often a few shaped teeth to aid shifting. They all go shark toothed when worn. Send us pictures.

That’s what I thought. He said the chain might skip there but I’m usually the OTT one which is weird. Seems ok to me. Not perfect but it should last a year until upgrade day.

 

[mrushton]

Not expensive to replace depending on brand and BCD. A regular 110 or 130bcd on eBay isn't madly expensive

 

[Milzy]

Not expensive to replace depending on brand and BCD. A regular 110 or 130bcd on eBay isn't madly expensive

I went lower end just to get going, I always planned to upgrade next year with more available spends.

 

[fossyant]

Looks fine, they are profiled. Carry on.