Which size Colnago?

[Davist]

Originally Posted by oldpotatoe

A Giant rather than a Colnago for $1200?..righto..in yer dreams, pal..

Uh, doesn't Giant make the carbon Colnagos? I thought so..

[phcollard]

Originally Posted by Dave

... If the reach is the same on two frames, the stem length needed should be the same.

Hmmm. You're right!

So choosing between the 50s and the 52s is just a matter of how comfortable I am with head tube length right?

Right?

[Black Dog]

Originally Posted by phcollard

Hmmm. You're right!

So choosing between the 50s and the 52s is just a matter of how comfortable I am with head tube length right?

Right?

Yes. The choice is going to be about the head tube length.

[dddd]

After looking at the geometry chart, and reading of your fit parameters, I believe the 52s with the shorter stem will have better steering response.

I have a 52s CX-Zero with slightly steeper headtube angle than the CR-S, and although I (at 5'9") got a marginally better fit with a 110mm stem, the bike definitely had a better (lighter, quicker) cornering feel with the original 100mm stem.

Here's a picture with the original stem:

[wallymann]

the non-C lines, yes.

Originally Posted by Davist

Uh, doesn't Giant make the carbon Colnagos? I thought so..

[oldpotatoe]

Originally Posted by Davist

Uh, doesn't Giant make the carbon Colnagos? I thought so..

Don't think the C-RS is made anywhere but Italia..

[Dave]

I need to post a correction to my comments about the reach comparison between two frames of different sizes. Reach can only be compared properly between frames with the same stack height. If the stacks are different, then a correction of 3mm for each 10mm of additional stack height is needed. With the C-RS, the reach of the 52 is 1mm longer, but the stack is 18mm taller, so the real difference in reach is in the 6-7mm range. That means that one size shorter stem might be required.

Another way to think of this is the smaller frame would mostly likely be built with 20mm of additional steering tube spacer and that moves the stem back about 6mm. That 6mm should be subtrated from the reach of the smaller frame.

You can tell that I've been away from biking for 8 years. Fortunately, I have word documents where I've kept a lot of my old writings.

[phcollard]

Originally Posted by Dave

I need to post a correction to my comments about the reach comparison between two frames of different sizes. Reach can only be compared properly between frames with the same stack height. If the stacks are different, then a correction of 3mm for each 10mm of additional stack height is needed. With the C-RS, the reach of the 52 is 1mm longer, but the stack is 18mm taller, so the real difference in reach is in the 6-7mm range. That means that one size shorter stem might be required.

Another way to think of this is the smaller frame would mostly likely be built with 20mm of additional steering tube spacer and that moves the stem back about 6mm. That 6mm should be subtrated from the reach of the smaller frame.

You can tell that I've been away from biking for 8 years. Fortunately, I have word documents where I've kept a lot of my old writings.

Thanks for the detailed explanation Dave, much appreciated! I understand (a bit) better now.

I did some Photoshop since I don't have access to a C-RS in real life. Saddle is at the correct height for me in the pictures below, and all the other contact points that I measured with PS fall right in place.

I found another contender to the Colnago, about the the same price. Decisions

[phcollard]

Hey folks. An update.

I was able to briefly try a 50s CR-S! The fit was great with 3cm of spacers under the stem The bike was quite nervous with a 10cm stem as far as I could tell but the shop owner said a 11cm stem would be better, which is good because the reach was a bit short, I felt.

The 50s at $1200 went out of stock right this morning

They still have a 52s at $1200. What do you guys think? Safe buy?

[oldpotatoe]

Originally Posted by phcollard

Hey folks. An update.

I was able to briefly try a 50s CR-S! The fit was great with 3cm of spacers under the stem The bike was quite nervous with a 10cm stem as far as I could tell but the shop owner said a 11cm stem would be better, which is good because the reach was a bit short, I felt.

The 50s at $1200 went out of stock right this morning

They still have a 52s at $1200. What do you guys think? Safe buy?

I still think, when compared to your Merckx(STA, top tube length) and longer head tube(yer back issues)..the 52 would be the one..100mm stem..go ride.

[Dave]

Anyone know of a better price than than $1700 for the C-RS frame? My searches haven't brought up much. Wrench Science has them, but Colorado Cyclist must have run out and now only has them to order.

[ultraman6970]

THis

Originally Posted by oldpotatoe

I still think, when compared to your Merckx(STA, top tube length) and longer head tube(yer back issues)..the 52 would be the one..100mm stem..go ride.

[paredown]

Originally Posted by Dave

Anyone know of a better price than than $1700 for the C-RS frame? My searches haven't brought up much. Wrench Science has them, but Colorado Cyclist must have run out and now only has them to order.

Velomine has some complete bikes listed on eBay @ $1399--and only $1199 directly from their web site:
http://www.velomine.com/index.php?ma...ndex&cPath=597

[Keith A]

Originally Posted by paredown

Velomine has some complete bikes listed on eBay @ $1399--and only $1199 directly from their web site:
http://www.velomine.com/index.php?ma...ndex&cPath=597

That seems like good price for a new Colnago with 105.

[paredown]

Originally Posted by Keith A

That seems like good price for a new Colnago with 105.

Word. I've been talking myself down for a week or so....