EpicSki › The Barking Bear Forums › Off-Season Sports & The Lighter Side › Cycling › Opinions on a Tiagra to 105/ 105 to Tiagra swap.
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Opinions on a Tiagra to 105/ 105 to Tiagra swap.

post #1 of 12
Thread Starter 

Somewhat confusing title, right?

My roommate is looking for a road bike. She is fairly certain she will stick too it, and wants something that will last, but also can;t go crazy with the cost right now. Right now she loves the way the 2009 Cannondale Synapse 7 Feminine (Tiagra/Sora groupo) rides, but not the $1026 w/tax price tag. The same shop has an 08 Synapse for $820, but it has a full Sora groupo, she hates the shifters and I'd rather see her in something a little nicer, at the very lest to have a better chance of selling it.

I found an 08 Synapse 5 (105 groupo) at another shop for $1080. So I am thinking of having her pay $820 for this bike, and I will cover the rest ($260). Then I will pull the slightly used Tiagra components off of my 08 Six 13, put them on her bike, then put the 105 on my own.

I look at at as she is getting the bike that she wants, that fits, at a pretty good price with some used componets that we know aren't beat. I am getting a full 105 upgrade for $260. Is this worht it? I am just hoping that this isn't a huge hassle to swap out, and that it doesn't fuck with my warrenty/service agreement at my local dealer (lifetime). I really can't decide if I am nuts here or not...


end blog
post #2 of 12

Tiagra, much to my surprise, had been a solid group.  I have 105 derailleurs with Tiagra shifters on my CX bike.  One shifter broke, but I blame that on the car that hit me...  I agree with the Sora sentiments though - it is junk compared to Tiagra. 

 

It's been a while since I've ridden a full 105 bike though.  I've been on Ultegra/DA bikes for a bit now, and Ultegra is probably the best bang for the buck out there.  I really like it.  With that said, I'm also very interested in checking out SRAM Force as well, since I've been pretty happy with the way their mountain bike gear performs well. 

 

As far as your warranty, I'm going to guess the "lifetime" warranty does not include components - usually you're talking frame & fork for LT warranties.  Shimano wouldn't stand behind that, so I'd be surprised if a seller would.  I wouldn't worry too much about warranty issues from that standpoint.  Maybe have the dealer install your parts? 

post #3 of 12

Are all of these bikes 10 speeds? 

post #4 of 12
Thread Starter 

axe,

 

"2. Park Ave extends the bicycle manufacture's warranty, if needed, to lifetime of defects and workmanship."

 

"3. Park Ave wil extend the manufacture's guarantee on accessories and parts purchased at Park Ave to lifetime on defects and workmanship"

 

I take the combination of these two to mean I am covered forever a far as defects go. Now that I think aboiut it though, i have no real intentions of staying in Rochester for more then another year or so anyways....

 

Wildcat,

 

I think the 08 Synapse with the 105 groupo is a 10 speed, while my 08 Six13 with the Tiagra is only a 9 speed.

post #5 of 12

 

Quote:
Originally Posted by krp8128 View Post

 

Wildcat,

 

I think the 08 Synapse with the 105 groupo is a 10 speed, while my 08 Six13 with the Tiagra is only a 9 speed.


Just keep in mind that you can't mix 9 speed and 10 speed groups, including shifters, chain and cassettes. I thing the derailleurs can be mixed, but nothing else. 

 

Michael

 

post #6 of 12

 IMHO it's a lot of work for small gain. Moving shifters taping bars, etc. not worth it. Swapping wheels might be nice though.

post #7 of 12
Thread Starter 

 

Quote:
Originally Posted by epic View Post

 IMHO it's a lot of work for small gain. Moving shifters taping bars, etc. not worth it. Swapping wheels might be nice though.


So the cables aren't the same I take it?

post #8 of 12

 Different size bikes probably different lengths. You can probably leave the housing, but you'll probably have to untape to get the brake levers off. Look under the hoods there is probably a loop of tape going over the body.

 

Are the crank lengths different? Do you want to ride tiny cranks while she rides big cranks. Is the seattube the same diameter? Or will you be unable to swap the front derailleur?

 

If you've got the time and want to learn more about wrenching bikes, go for it, but it seems like too much work for too little gain (except maybe the wheels).

post #9 of 12
Thread Starter 

 

Quote:
Originally Posted by epic View Post

 Different size bikes probably different lengths. You can probably leave the housing, but you'll probably have to untape to get the brake levers off. Look under the hoods there is probably a loop of tape going over the body.

 

Are the crank lengths different? Do you want to ride tiny cranks while she rides big cranks. Is the seattube the same diameter? Or will you be unable to swap the front derailleur?

 

If you've got the time and want to learn more about wrenching bikes, go for it, but it seems like too much work for too little gain (except maybe the wheels).


Damn. The voice of reason.

post #10 of 12

 

Quote:
Originally Posted by krp8128 View Post

 


Damn. The voice of reason. The voice of a thousand bike upgrades.


fixed it for you.

post #11 of 12

The GF should always have the nicer bike. Upgrading your bike with her parts is telling her you don't think she will ride or that her riding experience is less important than yours.

post #12 of 12
Thread Starter 

 

Quote:
Originally Posted by telerod15 View Post

The GF should always have the nicer bike. Upgrading your bike with her parts is telling her you don't think she will ride or that her riding experience is less important than yours.


She's not the GF (anymore ), and it was more to get her a decent bike that was within her price range.

 

Anyways, shen ended up getting a 2009 Synapse 7:

 

 

She wanted black, but that color wasn't availible until mid June at the earliest. They put it together for her out of the box while we went to get lunch, and except for a little cable stretch on the first rifde it has been good for her. She hasn't even noticed any fit issues, but I keep urging her to go back in for her free fitting before it is too late.

 

Cannondale specs the shifters/levers as Sora, but due to some issue they have been shipping with Tiagra. Sweet bonus, as that is what she wanted. Confusing though when you ride a bike then go home and look at the specs and they differ. Tiagra rear, Sora front and Tektro brakes. Perfect starter bike for her.

 

That same day we found her a helmet and some shorts, and I had just bought a really nice jersey off bonktown that was way to small but fit her perfectly. We rode every day for about a week and a half straight, then I got super sick for 2 weeks and she wouldn't ride without me (a crash as a kid left her scared of cars). She's getting back into it now though, and told me that she is going to star going on her own when  am too busy to ride (I haven't been home from campus before 5 all week, and she works at 6).

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EpicSki › The Barking Bear Forums › Off-Season Sports & The Lighter Side › Cycling › Opinions on a Tiagra to 105/ 105 to Tiagra swap.