Cervelo S5 build

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glam2deaf
Posts: 633
Joined: Mon Apr 27, 2015 4:36 am

by glam2deaf

Time to upgrade from my well abused S3. Decided to stay Aero, and stick with Cervelo. Size 58 after my previous 56 S3.

To start with the frame:
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1160 grams with bottom bracket, hanger, and bottle cage bolts

Fork:
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350 grams

And seatpost:

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204 grams

Trimmed a bit off (19 grams)
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Brings it down to 185 grams.
Last edited by glam2deaf on Tue Jun 28, 2016 11:20 am, edited 1 time in total.

glam2deaf
Posts: 633
Joined: Mon Apr 27, 2015 4:36 am

by glam2deaf

Brakes:

Front
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Rear:
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by Weenie


burglarboycie
Posts: 812
Joined: Thu Jan 22, 2015 6:58 pm
Location: Northamptonshire UK

by burglarboycie

The frame is lighter than I expected for a 58, and the fork weight is pretty damn good too. Looking forward to seeing this come together.

1415chris
Posts: 1044
Joined: Sat Apr 18, 2009 8:59 am
Location: Surrey UK

by 1415chris

BB 80g, hanger 8g, few bolts and bb cover all come to about 100g.
So 1060g for this kind of frame in this size, pretty damn good.
I got myself the same one in the same size, weights are almost identical.
I don't know where they assemble these bikes, definitely not in UK, as they come almost fully assembled from Germany (bought it as complete bike for total stripping) but somebody messed the hanger bolts up to the point I will have to drill them to take the hanger off.
Be careful with the seatpost cradle, especially for the carbon rails one.
The mounting bolts' faces may touch each other resulting not enough clamping force.
Even the seat may seem to be clamped properly, during the ride it will start moving. That happened to me. The grooves on the post's metal part have almost gone. I added extra thick spacer which allowed me to tighten the bolts a bit more, tad above the recommended 12Nm.
Will see if it holds.

What are you going to put on it, apart the Red brakes?

glam2deaf
Posts: 633
Joined: Mon Apr 27, 2015 4:36 am

by glam2deaf

Thanks for those extra weights. The seatpost is the same as I had to deal with on the s3, it's not the best system, found the seat slipping while racing quite a few times. Having to try level a saddle again on the fly was never fun. Found jacking it up to 14Nm did the trick in the end.

As for the rest of the build, going etap for the shifting.

glam2deaf
Posts: 633
Joined: Mon Apr 27, 2015 4:36 am

by glam2deaf

Few more parts:

Front derailleur:
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136 grams

Rear derailleur:
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216 grams

Left shifter:
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132 grams

Rear shifter (1 gram heavier for some reason?):
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133 grams

Battery x2:
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24 grams x2 = 48 grams

So far up to 2640 grams, with a lot more to add.

glam2deaf
Posts: 633
Joined: Mon Apr 27, 2015 4:36 am

by glam2deaf

Training tyres + tubes

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Vittoria Rubino Pro G+ 700x23c 236 grams x2 = 472 grams

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Schwalbe 700 tubes 108 grams x2 = 216 grams

RyanH
Moderator
Posts: 1798
Joined: Tue Jan 17, 2012 4:01 pm
Location: Los Angeles, CA
Contact:

by RyanH

Those tubes are a sin. If you prefer Butyl, Specialized has pre-Talc'd tubes that I think are around 70g or so each.
Strava
Current Stable. The Snob Machine
The Ex's. LS Siena: 6.21kg | Parlee Z5 SLi: 5.9kg | LS Xicon: 5.76kg | C59: 5.7kg | Cervelo R5ca: 5.09kg | Fuji Altamira SE - 6.2kg | Scott Foil - 6.2kg | Evo - 5.18kg | LS Classic - 6.7kg | The Crumpton - 5.9kg

glam2deaf
Posts: 633
Joined: Mon Apr 27, 2015 4:36 am

by glam2deaf

That weight is pretty rude. I'm a big fan of cheap tubes, the roads around here are awful.

Schwalbe Extra light saves the day.
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78 grams x2 = 156 grams

another offender...

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glam2deaf
Posts: 633
Joined: Mon Apr 27, 2015 4:36 am

by glam2deaf

Chainring time:

Praxis Works 53x39 130 bcd

Outer:
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124 grams

Inner:
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32 grams

glam2deaf
Posts: 633
Joined: Mon Apr 27, 2015 4:36 am

by glam2deaf

Waiting on parts to show up, so just weighing bits throughout the day.

Headset - standard FSA that came with the bike:
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54 Grams

Seatpost clamp/binder/bit:
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18 Grams

glam2deaf
Posts: 633
Joined: Mon Apr 27, 2015 4:36 am

by glam2deaf

Rubber stoppers:
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Side note, is there anything I should use to plug up the holes in these stoppers? Like a putty or similar.

1415chris
Posts: 1044
Joined: Sat Apr 18, 2009 8:59 am
Location: Surrey UK

by 1415chris

I used Sugru for all unwanted wholes including di2 battery ones (removed bolts) and one of the three down tube bottle holders.

glam2deaf
Posts: 633
Joined: Mon Apr 27, 2015 4:36 am

by glam2deaf

Time for the training wheels.

I'm using a set of Stans Alpha 400 rims 28/32 laced to Stans hubs. Super durable combo that is onto it's second winter with no problems at all.

Front:
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680 grams

Rear:
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910 grams

Front skewer
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51 grams

Rear skewer
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51 grams

I found a bag of Veloplugs and decided to give them a try

Before
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After
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Total 9 grams

Trusty Ultegra 6800 12-25 Cassette
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243 grams

So according to my weights I should have 2542 grams.

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2556 grams.

Difference is 14 grams, which is from pinching a tube and having to use a heavier alternative.

by Weenie


glam2deaf
Posts: 633
Joined: Mon Apr 27, 2015 4:36 am

by glam2deaf

Saddle is a Specialized Power Expert, I'd like to swap this out for the SWorks version to shave some weight. Nicest saddle I've used.

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237 grams

Speedplay pedals - not sure on the exact model of these, they were included with my TT bike when I bought it.

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207 grams

Expander cap - Cervelo's standard alloy tube that you epoxy in is pretty heavy:

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37 grams

so saved a few grams using this FSA option.

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22 grams

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