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Fuji New Bike Concern

Old 05-23-14, 07:28 PM
  #1  
Squire19
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Fuji New Bike Concern

Just purchased a new Absolute 1.3D bike for the wife. I noticed that the larger chainring has 14 teeth either worn down or chipped. Its a Oval Concepts 520 with 50/34 T the chainring is
Opraxis Works "Leva time" its not even a month old with 50 +/- miles.

Could this be a defect that fuji is marketing ? Seems that a $ 900. bike should have a better drivetrain that stands up to regular use. Its just been used as a commuter / fitness bike so far.
the derailers are standard Tiagra 9-speed, front derailer was upgraded to Tiagra as well.

Its going back to the dealer in the morning for a checkup. What should I expect from my LBS ?
I was also considering the purchase of the 1.1D model but I see its of the same components.

Anyone have experience with this "Opraxis Leva time" chainring integrity ?
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Old 05-23-14, 07:32 PM
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Originally Posted by Squire19 View Post
. . . Its going back to the dealer in the morning for a checkup. . .
While you're there take a close look at the sprockets on all the other bikes.
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Old 05-23-14, 07:35 PM
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Asymmetrical teeth on chainrings is a design feature, not a flaw, nowadays.
Read what Sheldon Brown had to say about ramped and pinned chainrings: Sheldon Brown's Bicycle Glossary Ra-Re
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Old 05-23-14, 07:58 PM
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So, are these "Pins & Ramps" something that a quality chainring is sold with or is it an after market type of feature ? Its the point of the tooth that I am concerned with. After minimal use several seem warn down /chipped already.

Originally Posted by JanMM View Post
Asymmetrical teeth on chainrings is a design feature, not a flaw, nowadays.
Read what Sheldon Brown had to say about ramped and pinned chainrings: Sheldon Brown's Bicycle Glossary Ra-Re
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Old 05-23-14, 08:24 PM
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Sounds like a new incarnation of Shimano's Bio-Pace chain-rings. Here:

Biopace Chainwheels
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Old 05-23-14, 08:30 PM
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It must be a full moon out there.

Broken, chipped or worn teeth has to be the single most frequently asked new bike question. These are intentional and are there as shift gates and are the Hyper in hyper glide (unless they're the glide).

You might have other questions and the dealer is there for you, but this is one you can pass on.
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Old 05-23-14, 08:39 PM
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Originally Posted by Squire19 View Post
So, are these "Pins & Ramps" something that a quality chainring is sold with or is it an after market type of feature ? Its the point of the tooth that I am concerned with. After minimal use several seem warn down /chipped already.
They are standard features on all good quality chainrings and have been for years. Those teeth are not "worn down/ chipped", they are shaped that way intentionally to improve shifting performance. This is truly a feature, not a bug.
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Old 05-23-14, 08:39 PM
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Originally Posted by Squire19 View Post
So, are these "Pins & Ramps" something that a quality chainring is sold with or is it an after market type of feature ? Its the point of the tooth that I am concerned with. After minimal use several seem warn down /chipped already.
Use the zoom-in feature to look at the teeth of the Oval Concepts rings. Is that how yours look? They are designed and manufactured like that.
Oval Concepts 520 Road Bike GXP Crankset 50 34T Compact 175mm Black 765G | eBay

As AnkleWork suggested, take a look at the rings on other bikes.
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Old 05-24-14, 04:57 AM
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Many thanks for the insight here guys. Funny how I never have noticed this on my other bikes. Boy, I feel like the backside of a mule now. LOL New on this forum so I've got some searching & reading to do. Thanks across the board. Have a great holiday weekend to all.

Originally Posted by HillRider View Post
They are standard features on all good quality chainrings and have been for years. Those teeth are not "worn down/ chipped", they are shaped that way intentionally to improve shifting performance. This is truly a feature, not a bug.
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Old 05-24-14, 12:55 PM
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Originally Posted by Squire19 View Post
Many thanks for the insight here guys. Funny how I never have noticed this on my other bikes. Boy, I feel like the backside of a mule now. LOL New on this forum so I've got some searching & reading to do. Thanks across the board. Have a great holiday weekend to all.
Don't beat yourself. This is possibly the most frequently asked new bike question. So while you may not be in good company, you're certainly not alone. I, for one, would love to have a sticky called NEW BIKE FAQ, limited to the few most repeated new bike questions and answers. This would be number 1.

Enjoy the bike, and don't forget to revisit the dealer in a few weeks to have it checked for minor adjustments or things that might have been missed when it was assembled.
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Old 05-24-14, 01:10 PM
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Originally Posted by JanMM View Post
Asymmetrical teeth on chainrings is a design feature, not a flaw, nowadays.
Read what Sheldon Brown had to say about ramped and pinned chainrings: Sheldon Brown's Bicycle Glossary Ra-Re




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Old 05-26-14, 11:42 AM
  #12  
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Yes, Great explanation here. Well laid out. Thank you
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Old 05-26-14, 01:38 PM
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[QUOTE=FlatSix911;16788067]You cannot help the poor by destroying the rich.
You cannot strengthen the weak by weakening the strong.
You cannot bring about prosperity by discouraging thrift.
You cannot lift the wage earner up by pulling the wage payer down.
You cannot further the brotherhood of man by inciting class hatred.
[QUOTE]

I find your "signature" very interesting and actually agree with it completely. I have been seeing it posted on Bike Forums for a long time now, but despite my approval, I find it terribly incomplete. There are additional truths that need to be considered:

Helping the poor will not destroy the rich. Hoarding their riches is all that is required to destroy the rich.
Lending a hand to the weak will not weaken the strong. It is damn good exercise for both the body and the soul.
Although thrift is an important characteristic of our society, it is by consumption that our economy thrives. Like it or not, we all have to learn to deal with that sensibly.
Paying fair and respectable wages pulls no one down.
If saying what is true incites class hatred, there is something rotten in the relationship of the classes. If you want to further the brotherhood of man, it would be better to fix that than worry about what is being said.
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Old 05-26-14, 04:30 PM
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Agreed. Thank you

Originally Posted by FlatSix911 View Post
You cannot help the poor by destroying the rich.
You cannot strengthen the weak by weakening the strong.
You cannot bring about prosperity by discouraging thrift.
You cannot lift the wage earner up by pulling the wage payer down.
You cannot further the brotherhood of man by inciting class hatred.
Originally Posted by rpenmanparker View Post
I find your "signature" very interesting and actually agree with it completely.
I have been seeing it posted on Bike Forums for a long time now, but despite my approval, I find it terribly incomplete. There are additional truths that need to be considered:

Helping the poor will not destroy the rich. Hoarding their riches is all that is required to destroy the rich.
Lending a hand to the weak will not weaken the strong. It is damn good exercise for both the body and the soul.
Although thrift is an important characteristic of our society, it is by consumption that our economy thrives.
Like it or not, we all have to learn to deal with that sensibly. Paying fair and respectable wages pulls no one down.
If saying what is true incites class hatred, there is something rotten in the relationship of the classes.
If you want to further the brotherhood of man, it would be better to fix that than worry about what is being said.
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