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Thread: Ultegra vs 105

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    Senior Member EastTNrider's Avatar
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    Ultegra vs 105

    I have an opportunity to purchase a friend's unused complete Ultegra drivetrain, crank arms and brakes for only $350. Anyone have experience going from 105s to Ultegras and if it's a marked improvement? How about the weight difference?

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    Which Ultegra? Which 105?

    5700 to 6700? Not worth it IMO.

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    Quote Originally Posted by EastTNrider View Post
    I have an opportunity to purchase a friend's unused complete Ultegra drivetrain, crank arms and brakes for only $350. Anyone have experience going from 105s to Ultegras and if it's a marked improvement? How about the weight difference?
    How many speeds? 9x2, 9x3, 10x2, 11x2, ....?

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    Depends a lot on what year they are from. In some years, the difference between 105 and Ultegra is mostly cosmetic. In other years, there is a noticeable difference in weight and/or performance. $350 is a really cheap price, especially if you're talking about the latest 11-speed drivetrain.

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    Senior Member datlas's Avatar
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    Unless yours is really worn out, I advise not worth it. That's assuming same generation components.
    Quote Originally Posted by RUOkie View Post
    never underestimate the idiocy of BF.

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    Senior Member EastTNrider's Avatar
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    Quote Originally Posted by dicktill View Post
    How many speeds? 9x2, 9x3, 10x2, 11x2, ....?
    I'd be going from a 10x2 to 11x2. My 105s are 2013 with Tiagra front derailur

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    Senior Member Jaeger99's Avatar
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    Quote Originally Posted by EastTNrider View Post
    I'd be going from a 10x2 to 11x2. My 105s are 2013 with Tiagra front derailur
    At that price, I'd do it.

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    Quote Originally Posted by achoo View Post
    Which Ultegra? Which 105?

    5700 to 6700? Not worth it IMO.
    I disagree. For $350, it is totally worth it. My wife's Ruby has the 5700 and my new Domane has the 6700 (it was a left over 2013). The 6700 is superior IMHO in every way including the way the shifters feel in the hand.
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    Quote Originally Posted by EastTNrider View Post
    I'd be going from a 10x2 to 11x2. My 105s are 2013 with Tiagra front derailur
    Wow, that's a great deal. If you're not interested, I am!

    Regards, Dick

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    Senior Member EastTNrider's Avatar
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    I think I could get 100-150 for my 105s also so it'd be a full Tiagra drivetrain/brake system for like $200. Anyone know the weight difference assuming similar production years?

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    Quote Originally Posted by fstshrk View Post
    I disagree. For $350, it is totally worth it. My wife's Ruby has the 5700 and my new Domane has the 6700 (it was a left over 2013). The 6700 is superior IMHO in every way including the way the shifters feel in the hand.
    One of my race bikes has 5700, the other 6700. I can't tell the difference in shifting between the two, although both bikes do have 7800 RDs.

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    Quote Originally Posted by EastTNrider View Post
    I'd be going from a 10x2 to 11x2. My 105s are 2013 with Tiagra front derailur
    Give him the money before he sobers up.

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    Senior Member EastTNrider's Avatar
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    Quote Originally Posted by achoo View Post
    Give him the money before he sobers up.
    Haha it's a good friend of mine's girlfriend's setup. She's a racer who took the Shimanos off her bike so she could run SRAM for some reason. It's waiting for me!

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    The Ultegra 6800 (11s) has been redesigned and has a lot of improvements on the old 10s versions (105 5700 or Ultegra 6700). Aside from the obvious additional cog, the most notable are the braking and the front shifting which uses a longer arm on the FD for a lighter shift action.

    For $350 I'd take it. It's a pretty sweet deal. For comparison, ChainReaction has it for $872.

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    I'd buy it and then put it on ebay and make a profit and keep the 105 on your bike
    http://www.pedalroom.com/members/rms13

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    Senior Member EastTNrider's Avatar
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    Quote Originally Posted by e_guevara View Post
    The Ultegra 6800 (11s) has been redesigned and has a lot of improvements on the old 10s versions (105 5700 or Ultegra 6700). Aside from the obvious additional cog, the most notable are the braking and the front shifting which uses a longer arm on the FD for a lighter shift action.

    For $350 I'd take it. It's a pretty sweet deal. For comparison, ChainReaction has it for $872.
    Does that price include the brakes too?

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    Senior Member EastTNrider's Avatar
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    Quote Originally Posted by rms13 View Post
    I'd buy it and then put it on ebay and make a profit and keep the 105 on your bike
    Not going to take advantage of a good friend like that

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    Quote Originally Posted by EastTNrider View Post
    Does that price include the brakes too?
    According to the page, the groupset includes:
    - Ultegra FC-6800 Crankset Standard 53/39 (new 4-arm design, 110 mm BCD)
    - Ultegra ST-6800 Dual Control Shifters Set STI
    - Ultegra Rear Derailleur RD-6800 SS
    - Ultegra Front Derailleur FD-6800 Braze On
    - Ultegra Brake Set BR-6800
    - Ultegra 11-speed Cassette CS-6800 (11-25 / 11-28 / 12-25)
    - Ultegra 11-speed Chain CN-6800 116 Links

    Here's the link: Shimano Ultegra 6800 11 Speed Groupset, Chain Reaction Cycles

    Normally, it's retailed at $1700.

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    Senior Member fstshrk's Avatar
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    Quote Originally Posted by EastTNrider View Post
    Haha it's a good friend of mine's girlfriend's setup. She's a racer who took the Shimanos off her bike so she could run SRAM for some reason. It's waiting for me!
    Is the crankarm the right length for you?
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    Senior Member EastTNrider's Avatar
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    Quote Originally Posted by e_guevara View Post
    According to the page, the groupset includes:
    - Ultegra FC-6800 Crankset Standard 53/39 (new 4-arm design, 110 mm BCD)
    - Ultegra ST-6800 Dual Control Shifters Set STI
    - Ultegra Rear Derailleur RD-6800 SS
    - Ultegra Front Derailleur FD-6800 Braze On
    - Ultegra Brake Set BR-6800
    - Ultegra 11-speed Cassette CS-6800 (11-25 / 11-28 / 12-25)
    - Ultegra 11-speed Chain CN-6800 116 Links

    Here's the link: Shimano Ultegra 6800 11 Speed Groupset, Chain Reaction Cycles

    Normally, it's retailed at $1700.
    awesome thanks for the link! I forgot to mention also that my current brake are the stock Bianchi Reparto Corsos which are not very good so BIG upgrade there especially

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    Senior Member EastTNrider's Avatar
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    Quote Originally Posted by fstshrk View Post
    Is the crankarm the right length for you?
    Not sure what length I need honestly

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    Quote Originally Posted by EastTNrider View Post
    Quote Originally Posted by fstshrk View Post
    Is the crankarm the right length for you?
    Not sure what length I need honestly
    I think fstshrk is asking "what is the length of the crank that came from your mate's girlfriend?"

    If it's a regular size (not an odd size), 170 mm, and your current FSA Omega crank also has 170 mm, and you're not having any problem with your current crank, then you're fine.

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    I would do it in a heartbeat. Then I would keep the take offs and end up building a new bike... just because.

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    SpIn SpIn SuGaR! FIVE ONE SIX's Avatar
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    i would definitely do it, because the newer Ultegra is definitely a step up from the older Ultegra from years ago. just make sure it comes with the Ultegra breaks too, cause the new Ultegra ones are REALLY nice. and considering it's coming from a womans bike, and she's not that tall, the cranks will most likely be 170's. if you need longer ones, just sell them to get the longer ones, otherwise i would just bolt everything on and be good to go...

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    Senior Member goenrdoug's Avatar
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    Oh, and send the old 105 stuff to me, for free, just because. You know, pay it forward and all.

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