New Cervélo Tomorrow? (1st Oct launch)

Discuss light weight issues concerning road bikes & parts.
TiCass
Posts: 226
Joined: Thu Aug 04, 2016 1:13 pm

by TiCass

Could you tell us more the bottom bracket?

by Weenie


IchDien
Posts: 513
Joined: Mon Nov 05, 2012 12:23 am
Location: Veneto

by IchDien

7.3kg does seem very good.

Really want to see a rim s3 and its weight.

timmerrr
Posts: 67
Joined: Wed Sep 26, 2018 10:09 pm

by timmerrr

robeambro wrote:
Sun Jan 13, 2019 11:39 am
7.3kg? With pedals? How?

It seems very much weird. Online I can’t find any info on how much a full build should weigh.

From what you claim, seems like the S5 could be the lightest of the aero bunch, and yet Cervelo doesn’t give any info as to the weight of a full bike? Seems nonsensical.
That’s what the park scale at the shop said... I’ll get it back in the shop and get a pic of it on the scale. I didn’t see the frame on the scale but I was told the frame was 990g for a 56. The pedals are look carbon ti keo blades so those aren’t adding much to the weight. I’ll pull it apart and weigh stuff later this week.

timmerrr
Posts: 67
Joined: Wed Sep 26, 2018 10:09 pm

by timmerrr

TiCass wrote:
Sun Jan 13, 2019 2:25 pm
Could you tell us more the bottom bracket?
What do you want to know? It’s bbright, no creaking, nice and stiff....

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VTR1000SP2
Posts: 718
Joined: Tue Nov 05, 2013 8:21 pm

by VTR1000SP2

IchDien wrote:
Sun Jan 13, 2019 4:12 pm
7.3kg does seem very good.

Really want to see a rim s3 and its weight.
I weighed a S3 Disc Ultegra with the Novatec wheels in a size 54 - 8.14kg
42.

spartan
Posts: 1272
Joined: Fri Sep 03, 2004 2:52 am

by spartan

the weight is wonky. a 54 with lighter etap/dtwheels weighed was 7.5kg without pedals. please weigh it again make sure the scale is accurate LOL

https://youtu.be/Xv3v5ALx6Gk?t=391
Current Rides:

2018 Madone SLR DISC DI2 9XXX
2017 Giant TCR Advanced SL 0 DI2 9150

timmerrr
Posts: 67
Joined: Wed Sep 26, 2018 10:09 pm

by timmerrr

spartan wrote:
Sun Jan 13, 2019 5:43 pm
the weight is wonky. a 54 with lighter etap/dtwheels weighed was 7.5kg without pedals. please weigh it again make sure the scale is accurate LOL

https://youtu.be/Xv3v5ALx6Gk?t=391
Idk about the wheels but etap hrd actually weighs more than dura ace. As I said I’ll get it back on the scale with cages and a power meter in a week or 2 when they show up.

timmerrr
Posts: 67
Joined: Wed Sep 26, 2018 10:09 pm

by timmerrr

Update, the park scale at the shop must not have been working properly. Much more in line with what was expected. The 21g bottle cages that cost $21 for the pair are pretty awesome though!
Attachments
S5 4.jpg

TiCass
Posts: 226
Joined: Thu Aug 04, 2016 1:13 pm

by TiCass

timmerrr wrote:
Fri Jan 18, 2019 6:19 pm
Update, the park scale at the shop must not have been working properly. Much more in line with what was expected. The 21g bottle cages that cost $21 for the pair are pretty awesome though!
Make sense!

Any plan to save weight?

Latex tube with GP5000?
Lighter bottom bracket?
Cut the handlebar extremities?
Lighter Saddle?
Lighter computer mount?

7.3kg seams within reach. Regardless, awesome bike!

timmerrr
Posts: 67
Joined: Wed Sep 26, 2018 10:09 pm

by timmerrr

TiCass wrote:
Sat Jan 19, 2019 12:15 am

Make sense!

Any plan to save weight?

Latex tube with GP5000?
Lighter bottom bracket?
Cut the handlebar extremities?
Lighter Saddle?
Lighter computer mount?

7.3kg seams within reach. Regardless, awesome bike!
Likely going to get a set of ~45mm deep tubs for racing. The saddle is full carbon with carbon rails. I’ve never ridden a non padded carbon saddle so I’m a bit nervous about that. The computer mount is carbon as well, the stock one is an alloy boat anchor lol. I might eventually get a lighter bottom bracket but it doesn’t creak right now so I’m not going to change that, at least not yet. Funny you mention gp5000s, I’m kinda salty it didn’t come with them in the first place. The wheels and frame did sit for 3 months waiting for a groupset, so I’m not that surprised as they weren’t out yet when they started putting the bike together to ship.

IchDien
Posts: 513
Joined: Mon Nov 05, 2012 12:23 am
Location: Veneto

by IchDien

One thing I'm a little interested in is why Cervelo hasn't modfied the down tube like many other brands (namely Pinarello & BMC) in order to accomodate aerodynamics when a bottle is in place?

In real world terms probably 90% of road cyclists ride with at least a bottle on the downtube; 100% of professionals. I really don't see it as being something so irrelevant that a major motorsport manufacturer wouldn't advise design changes when consulted (ie Jaguar for Pinarello), and BMC have obviously understood this themselves with their new design.

Is it just that in the wind tunnel it probably tests slower and therefore is not as great a marketing tool? Obviously wind tunnel tests aren't usually done with bottles in place as with cages included it would create a simply staggering amount of variables.

I'm talking only about road bikes here, but Pinarello even optimised the Bolide and thus the F10 afterward; and let's be honest Pinarello have never been considered aero freaks themselves like Cervelo.

I've not seen one in person, but the downtube of the new S5 looks almost as similar as the 2012 S5 and even more similar to the 2015. So...what's the deal?

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kgt
Posts: 7725
Joined: Sun Jun 18, 2006 10:29 am
Location: Athens, Greece

by kgt

In real world the aerodynamics of the frame have almost zero impact so considering a bottle on the downtube or not makes little difference.

kookie
Posts: 56
Joined: Sat Jun 06, 2015 8:43 pm

by kookie

IchDien wrote:
Sun Jan 27, 2019 4:33 pm
I've not seen one in person, but the downtube of the new S5 looks almost as similar as the 2012 S5 and even more similar to the 2015. So...what's the deal?
Could be the shape/size of the downtube that allows the water bottle to be 'hidden' without the cage being integrated like the Dogma/BMC.

I had the 2012 S5 and now have the 2018 S5, different shape/size downtube.

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VTR1000SP2
Posts: 718
Joined: Tue Nov 05, 2013 8:21 pm

by VTR1000SP2

Cycling Weekly messed around with this on the track although I don’t know if the rider was on the hoods, drops, or aero hoods when the bottle was on.

https://youtu.be/QUUh_QeNRVE

Image


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42.

spdntrxi
Posts: 2886
Joined: Sat Jul 20, 2013 6:11 pm

by spdntrxi

but that above chart... 3 out of the 5 bikes have already changed... maybe more.

by Weenie


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