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New cranks... Ultegra or 105

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Old 05-26-15, 09:52 PM
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Originally Posted by floridamtb
Not really doing either for weight or even performance really, it's my cycling OCD I guess that is forcing me to spend $200 on new cranks so I have the same grupo (assuming I go Ultegra which is how I'm leaning)
That is just ridiculous. Just ride your bike. Give the $200 to a local charity and help people who need food or clothing. You will feel a lot better.
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Old 05-27-15, 08:51 AM
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Originally Posted by sam_cyclist
That is just ridiculous. Just ride your bike. Give the $200 to a local charity and help people who need food or clothing. You will feel a lot better.
I already give quite a bit to charity and raise a lot of money for the Miami Dolphin Cycling Challenge, but hey thanks for telling me how to spend my money.
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Old 05-27-15, 08:55 AM
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Originally Posted by bleui
This. Even if you need a bigger ring you can just change the chainring to 52-36.

And I'm all for a mismatch grouppo, it kinda tells that you understand about your components selection and people would assume that you build it yourself instead of buying a full OEM bike
Excellent point... much better post than those telling me how to spend MY money (charity or with some overseas company). I never looked at it that way but great point! Thanks! Ride safe my friend!
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Old 05-27-15, 10:08 AM
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Traditionally, Ultegra has much better chainrings (shifting-wise) than 105. Better ramps, better formed teeth, better coatings, and stiffer. If you can make the jump to Ultegra, my advice is to do it.
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Old 05-27-15, 10:23 AM
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Originally Posted by bleui
This. Even if you need a bigger ring you can just change the chainring to 52-36.

And I'm all for a mismatch grouppo, it kinda tells that you understand about your components selection and people would assume that you build it yourself instead of buying a full OEM bike
Most of the OEM builds I see have non-matching cranks.
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Old 05-27-15, 02:10 PM
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Originally Posted by Brian Ratliff
Traditionally, Ultegra has much better chainrings (shifting-wise) than 105. Better ramps, better formed teeth, better coatings, and stiffer. If you can make the jump to Ultegra, my advice is to do it.
That's not true anymore. I have not noticed a significant difference in shifting quality (front der/chainrings) between tiagra, 105 and ultegra (all 2015 groups).
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Old 05-27-15, 02:13 PM
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Originally Posted by floridamtb
Excellent point... much better post than those telling me how to spend MY money (charity or with some overseas company). I never looked at it that way but great point! Thanks! Ride safe my friend!
Well then don't ask for opinions on an internet forum on how to spend your money. Make up your own damn mind. If you insist on being decisive, do it.

Your mind "works" something like this:

Q: 'What should I do?'
A: be intelligent and save your money.

Your response: 'Waaaaaaaah! Stop telling me what to dooooooo!!!

Dude, grow up.
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Old 05-27-15, 02:14 PM
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Originally Posted by sam_cyclist
That's not true anymore. I have not noticed a significant difference in shifting quality (front der/chainrings) between tiagra, 105 and ultegra (all 2015 groups).
Between 4600 and 5800/6800...really? Some pretty big design changes there, most folks claim a significant difference in the newest 11 speed Shimano front shifting.
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Old 05-27-15, 02:25 PM
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Originally Posted by sam_cyclist
Well then don't ask for opinions on an internet forum on how to spend your money. Make up your own damn mind. If you insist on being decisive, do it.
The question posed wasn't should I or shouldn't I, it was which one. The very nature of that question is such that I've already decided to spend MY money on one of them. So I was seeking recommendations on which one NOT between upgrading or not.
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Old 05-27-15, 02:46 PM
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New 5800 cranksets are about $100 at Merlin Cycles. For $100, it's hard to beat.
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Old 05-27-15, 02:48 PM
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Originally Posted by floridamtb
I wouldn't want to upset the velominati by having an unmatched groupset
I thought this was sarcasm until I read the following:

Originally Posted by floridamtb
Not really doing either for weight or even performance really, it's my cycling OCD I guess that is forcing me to spend $200 on new cranks so I have the same grupo (assuming I go Ultegra which is how I'm leaning)
Now I don't really understand what this thread is about...
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Old 05-27-15, 02:52 PM
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Originally Posted by sam_cyclist
That's not true anymore. I have not noticed a significant difference in shifting quality (front der/chainrings) between tiagra, 105 and ultegra (all 2015 groups).
Hmm... I do suppose you are the ultimate judge of things. Okay.

Folks, don't buy Ultegra. Tiagra is just as good. It's all been settled by this guy on the internet. Be sure to run all your purchasing activity through sam_cyclist for approval in the future. He's got opinions and he's been judged the ultimate judge so his unfounded opinions are the only ones that count!
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Old 05-27-15, 03:00 PM
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Originally Posted by Brian Ratliff
Hmm... I do suppose you are the ultimate judge of things. Okay.

Folks, don't buy Ultegra. Tiagra is just as good. It's all been settled by this guy on the internet. Be sure to run all your purchasing activity through sam_cyclist for approval in the future. He's got opinions and he's been judged the ultimate judge so his unfounded opinions are the only ones that count!
Next time I'm considering N+1 I'll be sure to run it by him
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Old 05-27-15, 03:04 PM
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Originally Posted by RPK79
I thought this was sarcasm until I read the following:



Now I don't really understand what this thread is about...

I could care less about matching honestly. The main reason I'm upgrading is for speed on the flats. Right now a 50x12 @ 90 rpm is 29.36 MPH whereas 53x12 @ 90 rpm is 31.12 MPH. Now I rarely go into the small gear because there are no long descents seeing that the only climbs are drawbridges, but on flats ocean side roads the bigger crank allows me more speed or a few less rom. And even if it's all BS there is the psychological factor, if I think it's faster and more efficient then there's a bump.

</thread>
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Old 05-27-15, 03:06 PM
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Originally Posted by floridamtb
</thread>
Good idea.
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Old 05-27-15, 03:07 PM
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Originally Posted by dtrain
Between 4600 and 5800/6800...really? Some pretty big design changes there, most folks claim a significant difference in the newest 11 speed Shimano front shifting.
I can't tell the difference between 4600 and 6700. But new gear never fails to impress me and I suspect the same could be said for others.
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Old 05-27-15, 03:10 PM
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Originally Posted by floridamtb
I could care less about matching honestly. The main reason I'm upgrading is for speed on the flats. Right now a 50x12 @ 90 rpm is 29.36 MPH whereas 53x12 @ 90 rpm is 31.12 MPH. Now I rarely go into the small gear because there are no long descents seeing that the only climbs are drawbridges, but on flats ocean side roads the bigger crank allows me more speed or a few less rom. And even if it's all BS there is the psychological factor, if I think it's faster and more efficient then there's a bump.

</thread>
There's something to be said about buying the gear that will keep you riding, regardless to the motivation. That said, I think you know that there's scant differences between cranksets and are looking to see if you missed anything objective. If that sounds about right, then good luck.
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Old 05-27-15, 03:11 PM
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Originally Posted by cale
I can't tell the difference between 4600 and 6700. But new gear never fails to impress me and I suspect the same could be said for others.
I'm not talking about 6700 - that would be very similar to 4600. 5800/6800 would have more going on than just being 'newer' than 4600.
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Old 05-27-15, 03:13 PM
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Originally Posted by dtrain
I'm not talking about 6700 - that would be very similar to 4600. 5800/6800 would have more going on than just being 'newer' than 4600.
Okay, but unless the new stuff can make a latte or iron my shirts, I just don't see how my front shifting is going to get much better. I'm not dropping chains...
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Old 05-27-15, 03:15 PM
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Originally Posted by floridamtb
I could care less about matching honestly. The main reason I'm upgrading is for speed on the flats. Right now a 50x12 @ 90 rpm is 29.36 MPH whereas 53x12 @ 90 rpm is 31.12 MPH. Now I rarely go into the small gear because there are no long descents seeing that the only climbs are drawbridges, but on flats ocean side roads the bigger crank allows me more speed or a few less rom. And even if it's all BS there is the psychological factor, if I think it's faster and more efficient then there's a bump.

</thread>
Does your current cassette have an 11t? If not, that's a pretty easy route to more top-end speed.
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Old 05-27-15, 03:16 PM
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Originally Posted by cale
Okay, but unless the new stuff can make a latte or iron my shirts, I just don't see how my front shifting is going to get much better. I'm not dropping chains...
I guess you can't feel the difference between improved shifting, and dropping a chain.
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Old 05-27-15, 03:17 PM
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Originally Posted by BoSoxYacht
I guess you can't feel the difference between improved shifting, and dropping a chain.
I think I can. Not sure I'm following your point. You describe improved shifting to me. Go ahead, try it...
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Old 05-27-15, 03:20 PM
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Okay, Botox, you've had your turn. Why you jumping on me? Did your momma forget to wash your sheets again?
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Old 05-27-15, 03:24 PM
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Originally Posted by cale
I think I can. Not sure I'm following your point. You describe improved shifting to me. Go ahead, try it...
a very smooth shift to the big ring, and dropped chains are different issues. Proper tuning should eliminate dropped chains, but better shift ramps on the big ring(and tooth profile) improves shifts to the big ring.
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Old 05-27-15, 03:33 PM
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Originally Posted by floridamtb
The question posed wasn't should I or shouldn't I, it was which one. The very nature of that question is such that I've already decided to spend MY money on one of them. So I was seeking recommendations on which one NOT between upgrading or not.
Since there is no functional difference with either, the correct answer is neither.

If you can't handle the stress of receiving accurate information, you are better off just flipping a coin.
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