cannonjoe

I want to get into road cycling, adding to my hybrid experience. I'm thinking of starting with a decent used road bike, of course the fit of the bike is critical. I have seen a 2008 Cannondale Six13 in the "approx" frame size based on my height...again "approx" until I actually test ride/fit. The asking price is $925. I have no idea what a used bike is worth? Is anyone willing to give an opinion of the asking price...or is there a source on the internet for bikes, like kelly blue book is to cars? As far as I know it could be worth $400?

10 Wheels

https://www.ebay.com/sch/i.html?_nkw=..._id=3086294526

10 Wheels

https://houston.craigslist.org/bik/2958815196.html

Homebrew01

Six-13 really just describes the frame. You need to know the specific components on the bike (they could have been swapped out since purchase).

When looking at Ebay, check "completed listings" to see actual sale prices, not just early bid prices.

I bought a used bare 2008 frame for $275 and am working on building it up.

3kmi

Six13s aren't commanding the premium that System sixes (older) and Supersixes (of any generation) are

LowCel 

Are the 2008's from the period where the Cannondales were cracking left and right? If so I would stay away from it since the warranty is to the original purchaser only.

Homebrew01

^^ I hope not. I think 2008 was the last year for six-13, so maybe they had fixed any issues.

eippo1

Nope, the 2008 Six13's were awesome bikes w/ no issues at all. Absolutely fantastic frames and way underrated too. One of the best riding bikes they ever did. OP, that's a slightly high price for the bike and if it's the 5 model that means it comes with 10 speed 105 which is still very good stuff.
Again, the price is a bit high. You might want to show them this recent ebay sale:
https://cgi.ebay.com/ws/eBayISAPI.dll...vip=true&rt=nc

or this one with the bike w/ dura ace selling for $1176:
https://cgi.ebay.com/ws/eBayISAPI.dll...vip=true&rt=nc

GDA

2008 Six13 is an awesome frameset. I paid $300 late last summer for my frameset used on local CL and in mint condition.Like others said, components and wheels will be the other big driver of the overall price so do some homework with an advanced search on ebay with "completed" listings checked and it will help you identify the prices items are actually selling at currently.

intence

What size are you looking for? It is an awesome frame, and relatively underrated. There were differences across the years I believe, the pre-2008 models were available in the early years (2005 I think) with a carbon insert in the seat tube, but those were said to be noodly, and in subsequent years the seat tube was all aluminum. There was also a cheaper model that didn't have the carbon in either the top-tube or down-tube, can't remember which.

The pre-2008 models were basically a CAAD frame with the carbon inserts interlocked into the frame. My understanding is that the large badge in the front was to cover holes that were needed to get the tubes to interlock or something. These frames also sometimes had corrosion around the carbon/alu joints especially in the unpainted/aluminum color. I've heard that it's not structural, just cosmetic.

The 2008 was a "one-off", as the geometry is different and the head tube is a bit taller. Also the carbon tubes are bonded, not interlocked into the frame, and I *believe* (I don't have confirmation) that the rear end must be from the SystemSix as both frames use a 31.8mm Seat tube, whereas the older Six13s were CAAD derived with a 27.2 seat tube.

As for the ride, I have a 2008, and it is probably one of the smoothest rides, it is truly amazing. I rode it a bit last weekend and it was very surprised at how well it rides (haven't ridden it in a while). It's a very underrated frame, especially in the later years when full Carbon took over. I had a CAAD9 and preferred the Six13, I think it ride extremely smooth (and i've ridden the CAAD9, Orbea Onix, and Cervelo R3 for comparison).

I <3 Robots

Lol...I had both the 08 Six 13 and 08 System Six at the same time...and I can't recall if the rears were the same. The Six 13 (140mm) has a 20mm taller headtube vs the System (120mm)...both 52cm. The front half of the System was fairly stiffer than the 13. The 08 13 lost the BB30 also.

I rode the bike for almost three years before I moved to the System Six. I loved it when I had it.

Here is my 13 before I broke it down to move the parts over to the System.

dizzydtrain

$925 seems to be on the higher end of what I would pay for that bike but that would also be contingent on the condition and if anything else is included additionally. I own a 2008 six13 and it's been an absolute blast to ride. As mentioned before, the carbon is bonded to the aluminum to create a very fun riding experience that is not harsh but stiff enough to have a good time.

I think It would be hard to find anything even close to that level of frame or components for around 800 at your lbs. Maybe you can negotiate a little with the owner on price-- either way it's a sweet ride and cannondale did a fantastic job on the six13 5.

cannonjoe

Thank you for all the reply's! It got sold before I could even see it...very sad...I at least wanted a look and a test ride!!! I am not having any luck finding good used road bike locally. I probably will have to buy new from the a LBS...thinking along the lines of a Trek Madone 3.1 or Cannondale supersix apex/105...need to got test ride and spend a lot of money! Decisions...decisions...decisions... isn't this suppose to be fun, looking/researching/buying a new bike? I know it was with my cheaper previous bikes!! Am I allowed to ask for donations to my bike cause here on the forum?

Some asked size...in the 52-54 range.

eippo1

If you know your size and what you want, possibly join and keep an eye on the Paceline forum classifieds (formerly Serotta). Lots of good deals to be had with people selling off old rigs to try something new.
https://forums.thepaceline.net/showthread.php?t=108448