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Combining chainring manufacturers?

Old 02-07-08, 09:52 PM
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Combining chainring manufacturers?

I need to switch my 53 chainring with a 52 in order to meet the new Junior Gear requirements.

I currently have a 53/39 setup with FSA chainrings on a carbon Team Issue crankset. However, FSA doesn't make 52 tooth chainrings. My only options are Dura-Ace and Ultegra.

First question- Is it OK to have a 39 tooth FSA combined with a 52 tooth Shimano?
Second- Dura-Ace is almost twice as much as Ultegra. The rest of my bike is Ultegra and I don't want to waste money. Which one should I go for?
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Old 02-07-08, 10:07 PM
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I think your shift will be smoother if you use shimano big ring.
Small ring doesn't have any ramps so it's all about the quality of the big ring.
Go with ultegra or 105, you're Mostly paying for the weight reductions when you go with dura-ace
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Old 02-07-08, 10:08 PM
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Does this chainring not work with your crank?

https://www.fullspeedahead.com/fly.as...id=100&pid=155
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Old 02-07-08, 10:09 PM
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How much does it weigh?
 
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1. Yes, everything should be fine as long as you're using the same BCD. Some people might give you OCP/Poseur trash-talk for mixing components, but it's your bike and do whatever you want that suits you, so long as you enjoy riding your bike.

2. Ultegra will be fine. It's the derailleurs/shifters that make the differences in shifting performance + weight. Ultegras may be heavier (or lighter - you'll need to check), but the shifting differences will not be substantially different between the two based on chainring alone.
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Old 02-07-08, 10:12 PM
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Originally Posted by JeffS
Does this chainring not work with your crank?

https://www.fullspeedahead.com/fly.as...id=100&pid=155
Nope, I buy my stuff through QBP and they don't offer the 130mm version. Thanks for checking though.

Thanks everyone for the replies. Looks like I'm going with Ultegra then.

:-)
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Old 02-07-08, 11:44 PM
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I do think that Ultegra rings wear faster than DA. Get DA if you can afford it.
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Old 02-08-08, 12:09 AM
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Originally Posted by logdrum
I do think that Ultegra rings wear faster than DA. Get DA if you can afford it.
Hogwash. If anything it would be the other way around. The main differences between Ultegra and Dura Ace in most cases is simply the materials used/finish. Usually the difference between chainrings is the materials and whether or not they are stamped or machined.

Your shifting will be smoother with the Shimano stuff - nice shift ramps. The small rings with SHimano also have a particular alternating tooth profile to work with the shift ramps to aid in smooth shifting. That's why they like to say they are desinged to work together in pairs. If after you buy the new large ring you find the shifting isn't totally silky smooth then this may be part of the cause.

Keep this in mind though...we shifted for many many years with no shift ramps and pins and blocked teeth. You'll be OK.

Oh and 5 BF attaboys for racing juniors.

...and USACycling gets 10 lashes for Junior gearing requirements. They can have the f'd up cassette combos, but at least let the guys run the rings that are commonplace.
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Old 02-08-08, 09:05 AM
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Don't know about Ultegra or 105, but my DA chainrings look like crap after a couple of years riding by the ocean. Plenty of rust, the whole finishing thing came off like foil paper, and the metal underneath literally oxidized to the point where I scrubbed off a nice pile of gray dust with a wire brush. Yep, I'll never buy DA chainrings again (these came with the bike which was on sale).

I have 53/39 set up on a DA double. What's available out there for a change? Can I keep the crank?
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