New cannondale SYSTEMSIX road frame!

Discuss light weight issues concerning road bikes & parts.
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cerro
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Location: Hengelo, The Netherlands
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by cerro

Dan Gerous: Specialized lowered the Tarmac SL6 fork 5mm which was possible when they changed to direct mount brakes :)
/jonas l
http://cerrol.wordpress.com (my cyclingblog)

by Weenie


Karvalo
Posts: 1083
Joined: Fri Aug 10, 2018 6:40 pm

by Karvalo

Dan Gerous wrote:
Fri Jan 24, 2020 4:11 pm
Not much to do with discs, well, indirectly maybe, it's more because just a few years ago, everything was built around 700x23 tires, now it's 25's, 28's and more, extra clearance made the axle-crown lengths grow, BB drop also changed... but discs did help make the trend towards bigger tire possible as most rim brakes usually limit tire sizes to 28's.
Exactly. When you've got to put the same size rim caliper on you can change the clearance as much as possible and still end up with the same size fork. Disc brakes have freed up clearances and therefore fork sizes.

Irishraven
Posts: 7
Joined: Thu Jan 16, 2020 6:54 pm

by Irishraven

Just put the deposit down in a mechanical ultegra disc system six (love the paint scheme on the black)...going to pull of the groupset....SRAM force axs or Shimano ultegra di2....never dipped my toes in electronic gearing...and think I've opened up a minefield....heads gone!!

Irishraven
Posts: 7
Joined: Thu Jan 16, 2020 6:54 pm

by Irishraven

any got any inputs....heads melted over which size to get, between 54cm or 56cm, my height is 177cm.....saddle height is 74.8cm bb to saddle with 172.5cranks, although with the size 54 it comes with 170cranks, so my saddle would be 77.3......

Any peoples thoughts or views would be great...cheers!

hannawald
Posts: 807
Joined: Sat Dec 17, 2016 7:28 pm
Location: Czech Republic

by hannawald

Those cranks are 2.5mm longer not 2.5 cm so i would say you shall be fine on 54.

Irishraven
Posts: 7
Joined: Thu Jan 16, 2020 6:54 pm

by Irishraven

hannawald wrote:
Mon Feb 03, 2020 5:25 pm
Those cranks are 2.5mm longer not 2.5 cm so i would say you shall be fine on 54.
Cheers for the reply....you reckon 54 would be best option? such a hard call, the geometry is very unusual on the system six 54cm....my saddle to stem drop is 10.5cm!

brearley
Posts: 391
Joined: Mon Aug 11, 2008 10:08 pm
Location: Hull

by brearley

I'm exactly the same height and have the 54cm frameset. I've built it up with a 13cm stem slammed but i would say if it looks like your run spacers on the smaller frame then get the larger one as the spacers look awful

Irishraven
Posts: 7
Joined: Thu Jan 16, 2020 6:54 pm

by Irishraven

brearley wrote:
Mon Feb 03, 2020 8:00 pm
I'm exactly the same height and have the 54cm frameset. I've built it up with a 13cm stem slammed but i would say if it looks like your run spacers on the smaller frame then get the larger one as the spacers look awful
Cheers for the reply dude....what size saddle are you running? Any chance you could post a picture.....bike will be used for training and racing....both long and short distance, with a few trips to the Alps!!

TurboKoo
Posts: 575
Joined: Wed Oct 29, 2008 7:55 pm

by TurboKoo

Mine has saddle height 747mm, it’s 54cm and has roughly 10,5cm drop with 120mm stem.
In picture saddle seems tilted but it’s level.



Image
Scott Foil
Shimano 9150
Shimano FCR-9100-P
Shimano C60 tubulars

Irishraven
Posts: 7
Joined: Thu Jan 16, 2020 6:54 pm

by Irishraven

TurboKoo wrote:
Mon Feb 03, 2020 9:21 pm
Mine has saddle height 747mm, it’s 54cm and has roughly 10,5cm drop with 120mm stem.
In picture saddle seems tilted but it’s level.



Image
Sweet ride dude!! Cheers for the reply!!

How do you find it? What height are you?? Stem would be similar to what I run on my 54cm caad12 and cervelo r3....the short seat tube makes it look like a really long seatpost!! Do you have much seatpost left in the frame??

ajcav86
Posts: 198
Joined: Sat Dec 01, 2018 4:14 pm

by ajcav86

TurboKoo wrote:
Mon Feb 03, 2020 9:21 pm
Mine has saddle height 747mm, it’s 54cm and has roughly 10,5cm drop with 120mm stem.
In picture saddle seems tilted but it’s level.



Image
How does it compare to your foil?..
Perdita- Burls Ti Road
Aurelia- Saffron Stainless/Carbon Gravel
Bertha - Trek Speedconcept
Jolene - Over kill winter bike

eins4eins
Posts: 178
Joined: Wed Sep 28, 2016 11:49 am

by eins4eins

54cm frame with 74cm saddle height. 122,5cm stem with 12° angle. My height is 179cm.
Picture is from the initial build. I changed the seatpost to the zero setback post and removed the spacer below the stem last weekend. I had a cane creek slamset laying around and it fits the systemsix. Dropped another 4mm of stack.

Image

TurboKoo
Posts: 575
Joined: Wed Oct 29, 2008 7:55 pm

by TurboKoo

ajcav86 wrote: How does it compare to your foil?..
I haven’t had yet chance to test it properly outside. I did manage to do burn-in process for brakes. Initial thought was “holy shit BB is really stiff” and it felt really good sprinting. Steering maybe tad calmer.

I’ll update once I get a proper ride regarding comfort.
Position feels good on Zwifting so I look forward to get same feeling on the road too.
Scott Foil
Shimano 9150
Shimano FCR-9100-P
Shimano C60 tubulars

Karvalo
Posts: 1083
Joined: Fri Aug 10, 2018 6:40 pm

by Karvalo

Irishraven wrote:
Mon Feb 03, 2020 5:12 pm
any got any inputs....heads melted over which size to get, between 54cm or 56cm, my height is 177cm.....saddle height is 74.8cm bb to saddle with 172.5cranks, although with the size 54 it comes with 170cranks, so my saddle would be 77.3......
With 170 cranks your saddle height would be 75.0cm.

by Weenie


hannawald
Posts: 807
Joined: Sat Dec 17, 2016 7:28 pm
Location: Czech Republic

by hannawald

if you are afraid about too much drop, get Super six..

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