Specialized S-Works Tarmac SL8

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req110
Posts: 883
Joined: Thu Nov 22, 2018 10:23 am

by req110

how much do you tighten the front through axle? i noticed a slight disc rub, which is annoying. on most my bikes i am doing a slight hand tight which is around 9-10NM. Manual of SL8 says 15Nm, so i tighten it to 15Nm and will give it a test ride today.
SW SL8 RTP 56cm @ 9270 / CLX II / CS OSPW / CEMA BB
S Epic 8 L @ XX T-Type / Berg Ratheberg 30 / Quarq / Fox Transfer SL 100mm / 3p

by Weenie


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K4m1k4z3
Posts: 362
Joined: Sun Nov 05, 2017 1:33 pm

by K4m1k4z3

req110 wrote:
Fri Apr 12, 2024 8:13 am
how much do you tighten the front through axle? i noticed a slight disc rub, which is annoying. on most my bikes i am doing a slight hand tight which is around 9-10NM. Manual of SL8 says 15Nm, so i tighten it to 15Nm and will give it a test ride today.
I just grease it well (green Motorex) and tighten to 13 - 14 Nm.
'24 S-Works Tarmac SL8 RTP - soon™
'22 Tarmac SL7 Expert | Ultegra R8100 | Alpinist CL / Custom Rapide CLX 2x60
'19 Diverge E5 Comp
'18 Epic HT Comp Carbon WMN
'18 TCR Adv Pro 1 Disc

Nickldn
Posts: 1932
Joined: Mon Mar 25, 2019 12:35 am

by Nickldn

boyce89976 wrote:
Fri Apr 12, 2024 5:08 am
Nickldn wrote:
Thu Apr 11, 2024 9:40 pm
So I have hit a snag with my SL8 build today.

I have noticed the front wheel is offset by about 2mm to the right once the wheel is clamped in. It does look good on a £4,750 bike.

Here are 2 photos with a 6mm hex key. Quite easy to see the difference in the gap.

1000024224.jpg1000024223.jpg

I have tried 2 wheels, a Bora WTO and CRW 50mm, both are perfectly central on my other bike.

Is this likely to be a functional issue, affecting handling and braking, or just cosmetic?

What would you do with this?
I thought the same thing about mine, but after looking a little more closely I think it's fine... I doubt that it is a warranty issue. IME, the fork profile is asymmetrical on the left due to the brake rotor clearance. What you need to do is see if the center line of the wheel/tire lines up with the center line of the headset tube/speed sniffer/bike, not the fork.
No it doesn't line up, that's how I noticed there was an issue.

Other db bikes in the house are symmetrical despite the rotor, it's kind of bonkers for a manufacturer to design a bike where one side of a tyre would potentially rub, so it's gotta be a defect.

Really not good considering this is one of the most expensive bikes on the market.....
Giant Propel Advanced SL Red Etap 11s Easton EC90 wheels CeramicSpeed BB Zipp SL70 bars 6.5kg

S-Works SL8 Dune White SRAM Red AXS Craft CS5060 Wheels Zipp SL70 bars ??kg

Nickldn
Posts: 1932
Joined: Mon Mar 25, 2019 12:35 am

by Nickldn

Kardinal wrote:
Fri Apr 12, 2024 7:51 am
Nickldn wrote:
Thu Apr 11, 2024 9:40 pm
So I have hit a snag with my SL8 build today.

I have noticed the front wheel is offset by about 2mm to the right once the wheel is clamped in. It does look good on a £4,750 bike.

Here are 2 photos with a 6mm hex key. Quite easy to see the difference in the gap.

1000024224.jpg1000024223.jpg

I have tried 2 wheels, a Bora WTO and CRW 50mm, both are perfectly central on my other bike.

Is this likely to be a functional issue, affecting handling and braking, or just cosmetic?

What would you do with this?
Same problem with my RTP Frameset...my dealer opened a warranty claim at specialized Europe and after long decisions I got a new replacement fork! Now everything is centered! I think it's an quality control issue at Specialized because some frames have it and some not....you can find it at Framesets and complete bikes! Contact your dealer!
Thanks, I have contacted them. Let's see what happens. I don't really want to accept the frameset with a defect.

Were you able to ride the bike in the meantime, or did you return it?
Giant Propel Advanced SL Red Etap 11s Easton EC90 wheels CeramicSpeed BB Zipp SL70 bars 6.5kg

S-Works SL8 Dune White SRAM Red AXS Craft CS5060 Wheels Zipp SL70 bars ??kg

eins4eins
Posts: 760
Joined: Wed Sep 28, 2016 11:49 am

by eins4eins

I would use a spirit level to check the vertical alignment of the front wheel. Looks like it will be a few degrees off to the right.

Kardinal
Posts: 23
Joined: Sat Aug 14, 2010 4:28 pm

by Kardinal

Nickldn wrote:
Fri Apr 12, 2024 8:25 am
Kardinal wrote:
Fri Apr 12, 2024 7:51 am
Nickldn wrote:
Thu Apr 11, 2024 9:40 pm
So I have hit a snag with my SL8 build today.

I have noticed the front wheel is offset by about 2mm to the right once the wheel is clamped in. It does look good on a £4,750 bike.

Here are 2 photos with a 6mm hex key. Quite easy to see the difference in the gap.

1000024224.jpg1000024223.jpg

I have tried 2 wheels, a Bora WTO and CRW 50mm, both are perfectly central on my other bike.

Is this likely to be a functional issue, affecting handling and braking, or just cosmetic?

What would you do with this?
Same problem with my RTP Frameset...my dealer opened a warranty claim at specialized Europe and after long decisions I got a new replacement fork! Now everything is centered! I think it's an quality control issue at Specialized because some frames have it and some not....you can find it at Framesets and complete bikes! Contact your dealer!
Thanks, I have contacted them. Let's see what happens. I don't really want to accept the frameset with a defect.

Were you able to ride the bike in the meantime, or did you return it?
My dealer took pictures from the misalignment of the fork and sent them to Specialized and I was able to ride the bike in the meantime. At least it took more than a month until they sent me a new fork! First they told me, that my wheel is not centered well or that my hub is the problem! But all wheels I have tried were centered in my Aethos and not centered in my sl8...so logically it must have been the fork! Finally my dealer managed it that I got the a fork replacement! For me all this was very annoying because the Frameset is not cheap and I expect high quality for this price...not very professional for such a big brand like Specialized! And our frames are not the only ones with this issue...check insta or google for tarmac sl8 pics...you will find some forks with this misalignment!

Nickldn
Posts: 1932
Joined: Mon Mar 25, 2019 12:35 am

by Nickldn

eins4eins wrote:
Fri Apr 12, 2024 8:44 am
I would use a spirit level to check the vertical alignment of the front wheel. Looks like it will be a few degrees off to the right.
Looks like the axle is level, but I haven't tried to set up the disk brakes yet, so my view could still change if I can't get the pads to align with the brake disk.
Giant Propel Advanced SL Red Etap 11s Easton EC90 wheels CeramicSpeed BB Zipp SL70 bars 6.5kg

S-Works SL8 Dune White SRAM Red AXS Craft CS5060 Wheels Zipp SL70 bars ??kg

jfranci3
Posts: 1588
Joined: Tue Jul 26, 2016 5:21 pm

by jfranci3

Paint question: In specialized's lingo... "TINT" does this signify that paint is translucent (aka "candy") - clear paint with color added? Can you see the carbon through the paint in all cases? Or do just the higher end models (with the lower end models needing a primer layer to clean the frames up after mold release).

Example:
https://www.specialized.com/us/en/tarma ... 840-218668

boyce89976
Posts: 96
Joined: Mon Nov 27, 2023 3:08 am

by boyce89976

req110 wrote:
Fri Apr 12, 2024 8:13 am
how much do you tighten the front through axle? i noticed a slight disc rub, which is annoying. on most my bikes i am doing a slight hand tight which is around 9-10NM. Manual of SL8 says 15Nm, so i tighten it to 15Nm and will give it a test ride today.
I think the front is 11.8nm and the rear is 14.9nm. I'd have to check the manual to be 100% certain.

boyce89976
Posts: 96
Joined: Mon Nov 27, 2023 3:08 am

by boyce89976

Nickldn wrote:
Fri Apr 12, 2024 8:22 am
boyce89976 wrote:
Fri Apr 12, 2024 5:08 am
Nickldn wrote:
Thu Apr 11, 2024 9:40 pm
So I have hit a snag with my SL8 build today.

I have noticed the front wheel is offset by about 2mm to the right once the wheel is clamped in. It does look good on a £4,750 bike.

Here are 2 photos with a 6mm hex key. Quite easy to see the difference in the gap.

1000024224.jpg1000024223.jpg

I have tried 2 wheels, a Bora WTO and CRW 50mm, both are perfectly central on my other bike.

Is this likely to be a functional issue, affecting handling and braking, or just cosmetic?

What would you do with this?
I thought the same thing about mine, but after looking a little more closely I think it's fine... I doubt that it is a warranty issue. IME, the fork profile is asymmetrical on the left due to the brake rotor clearance. What you need to do is see if the center line of the wheel/tire lines up with the center line of the headset tube/speed sniffer/bike, not the fork.
No it doesn't line up, that's how I noticed there was an issue.

Other db bikes in the house are symmetrical despite the rotor, it's kind of bonkers for a manufacturer to design a bike where one side of a tyre would potentially rub, so it's gotta be a defect.

Really not good considering this is one of the most expensive bikes on the market.....
Ah, bummer. Mine is off by about 1-2mm but is on the centerline of the bike.

boyce89976
Posts: 96
Joined: Mon Nov 27, 2023 3:08 am

by boyce89976

boyce89976 wrote:
Sat Apr 13, 2024 2:00 am
req110 wrote:
Fri Apr 12, 2024 8:13 am
how much do you tighten the front through axle? i noticed a slight disc rub, which is annoying. on most my bikes i am doing a slight hand tight which is around 9-10NM. Manual of SL8 says 15Nm, so i tighten it to 15Nm and will give it a test ride today.
I think the front is 11.8nm and the rear is 14.9nm. I'd have to check the manual to be 100% certain.
The manual that came with my bike says the front is 11.8nm and the rear is 14.9nm, but the online manual says 15nm for both front and rear.

req110
Posts: 883
Joined: Thu Nov 22, 2018 10:23 am

by req110

Right. I did 14nm and it seems like it plays a significant difference in the fork stiffness over the handTight 9Nm I did before as 80% of previous disc rub is gone.
SW SL8 RTP 56cm @ 9270 / CLX II / CS OSPW / CEMA BB
S Epic 8 L @ XX T-Type / Berg Ratheberg 30 / Quarq / Fox Transfer SL 100mm / 3p

Nickldn
Posts: 1932
Joined: Mon Mar 25, 2019 12:35 am

by Nickldn

Yes the online sl8 manual says 15nm for both front and rear thru axles....one area where it pays to rtfm :D
Giant Propel Advanced SL Red Etap 11s Easton EC90 wheels CeramicSpeed BB Zipp SL70 bars 6.5kg

S-Works SL8 Dune White SRAM Red AXS Craft CS5060 Wheels Zipp SL70 bars ??kg

User avatar
PinaRene
Posts: 879
Joined: Mon Feb 12, 2007 12:08 pm

by PinaRene

Nickldn wrote:
Sat Apr 13, 2024 9:30 am
Yes the online sl8 manual says 15nm for both front and rear thru axles....one area where it pays to rtfm :D
I think it's crazy that is really tight .. On my Æthos it's the same but I did 10Nm and it's tight enough. Then I gave a little scratch in the true axle to see where that point is. When I have a flat or have to take the wheel out on the side of the road I know where aprox 10Nm is. On my BMC is 10Nm the norm.

by Weenie


Visit starbike.com Online Retailer for HighEnd cycling components
Great Prices ✓    Broad Selection ✓    Worldwide Delivery ✓

www.starbike.com



Nickldn
Posts: 1932
Joined: Mon Mar 25, 2019 12:35 am

by Nickldn

PinaRene wrote:
Sat Apr 13, 2024 10:58 am
Nickldn wrote:
Sat Apr 13, 2024 9:30 am
Yes the online sl8 manual says 15nm for both front and rear thru axles....one area where it pays to rtfm :D
I think it's crazy that is really tight .. On my Æthos it's the same but I did 10Nm and it's tight enough. Then I gave a little scratch in the true axle to see where that point is. When I have a flat or have to take the wheel out on the side of the road I know where aprox 10Nm is. On my BMC is 10Nm the norm.
I don't disagree and it did raise my eyebrows (both). Other db bikes in the household are 10nm, so this is 50% more torque.

I think though it's a feature of the SL8 frameset and that's what you need to use to get the best from it. I could see the frame feeling less stiff than intended otherwise.

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