Author Topic: Seraph Bikes Superlight 836g X68 - Alternative to SL8 Fakes?  (Read 1476001 times)

dovh

Re: Seraph Bikes Superlight 836g X68 - Alternative to SL8 Fakes?
« Reply #480 on: March 30, 2025, 03:59:43 AM »
Hey all, we have almost finished the build yesterday.
It's not entirely finished, but I have to wait with the handlebar tape until I get to the bike fit guy to set it up properly for me.
Here is the photo of the almost finished bike. It weighs a little over 8kg in size 58 and has quite heavy wheels and tires. With better wheels and tires that I hope to get soonish(tm), I should be able to save around 500-550g with that alone.

Some notes from building the bike. Brakes, we're not that hard to center. It took some finicking, but my friend managed to do it in about 20 minutes or so. Routing cables and hoses were also not that hard, but be careful so you don't drop the metal plate holding the front derailleur in the seat post tube. It was a pain to finagle it back in place.. Otherwise, everything was relatively straightforward. The headtube was finished nicely, and the bearing sat firmly there with no play. Also, the gap under the spacers is not bad after compressing it (see picture). 

Can't attach pictures here. It crashes the page, so it's here on google drive - https://drive.google.com/drive/folders/1AEk9xj3Kvf6tfcz9mtWzV21S3gj--7qY?usp=sharing

fhill

Re: Seraph Bikes Superlight 836g X68 - Alternative to SL8 Fakes?
« Reply #481 on: March 30, 2025, 07:09:15 AM »
Hey all, we have almost finished the build yesterday.
It's not entirely finished, but I have to wait with the handlebar tape until I get to the bike fit guy to set it up properly for me.
Here is the photo of the almost finished bike. It weighs a little over 8kg in size 58 and has quite heavy wheels and tires. With better wheels and tires that I hope to get soonish(tm), I should be able to save around 500-550g with that alone.

Some notes from building the bike. Brakes, we're not that hard to center. It took some finicking, but my friend managed to do it in about 20 minutes or so. Routing cables and hoses were also not that hard, but be careful so you don't drop the metal plate holding the front derailleur in the seat post tube. It was a pain to finagle it back in place.. Otherwise, everything was relatively straightforward. The headtube was finished nicely, and the bearing sat firmly there with no play. Also, the gap under the spacers is not bad after compressing it (see picture). 

Can't attach pictures here. It crashes the page, so it's here on google drive - https://drive.google.com/drive/folders/1AEk9xj3Kvf6tfcz9mtWzV21S3gj--7qY?usp=sharing

I also dropped that metal plate holding the front derailleur plate into the seat tube absolute pain to get that back

glepore

Re: Seraph Bikes Superlight 836g X68 - Alternative to SL8 Fakes?
« Reply #482 on: March 30, 2025, 07:26:29 AM »
Have the frame built with Ultegra di2 11s and Onirii pedals, some 45mm deep heavy wheels and S-Works Power, weighs in at 7.2kg.

I'm having an issue with brake caliper mounts on the front, they aren't faced and my LBS says they can't face them because of the unusual length between the both screws.. I think with the Park Tool facing tool this should be fixable, just have to find a bike shop that will do this for me.


I wonder if its actually "unusual" or just a copy of Specialized unique spacing to the Aetheos and SL8. I'm curious-are you running 160 up front and did the frame ship with the appropriate adapter to make that work?

fhill

Re: Seraph Bikes Superlight 836g X68 - Alternative to SL8 Fakes?
« Reply #483 on: March 30, 2025, 08:33:53 AM »
I wonder if its actually "unusual" or just a copy of Specialized unique spacing to the Aetheos and SL8. I'm curious-are you running 160 up front and did the frame ship with the appropriate adapter to make that work?

I don't know whether it's the same spacing as Specialized or different from their spacing.

They did ship with the adapter for 160mm, I will ride with 160mm disc in the front

BeR

Re: Seraph Bikes Superlight 836g X68 - Alternative to SL8 Fakes?
« Reply #484 on: March 30, 2025, 09:52:22 AM »
I also dropped that metal plate holding the front derailleur plate into the seat tube absolute pain to get that back

For future user, you can have a look at pages 20, 21 and 22 of the Tarmac SL8 manual. It explains how to install it.

dovh

Re: Seraph Bikes Superlight 836g X68 - Alternative to SL8 Fakes?
« Reply #485 on: March 30, 2025, 09:54:43 AM »
I wonder if its actually "unusual" or just a copy of Specialized unique spacing to the Aetheos and SL8. I'm curious-are you running 160 up front and did the frame ship with the appropriate adapter to make that work?

Yes, you get the proper adapter for the 160mm rotor. You can see it in the picture below. I also set it up with 160mm in the back, and I used the Shimano flat mount adapter that was provided with the 105 di2 kit I got.

https://drive.google.com/file/d/1ZahWCEys7QcntiSH_ZXIWIQdF5lDjy_k/view?usp=drive_link

CARLOS5

Re: Seraph Bikes Superlight 836g X68 - Alternative to SL8 Fakes?
« Reply #486 on: March 30, 2025, 11:41:23 AM »
We also had issues with the brake calipers settling in. This can be fixed with the specific tool, but we could let Tantan know about this problem so they can fix it, since quite a few of us have had it. It also happens on 12k bikes.

tiz92

Re: Seraph Bikes Superlight 836g X68 - Alternative to SL8 Fakes?
« Reply #487 on: March 30, 2025, 12:36:52 PM »
Yes, you get the proper adapter for the 160mm rotor. You can see it in the picture below. I also set it up with 160mm in the back, and I used the Shimano flat mount adapter that was provided with the 105 di2 kit I got.

https://drive.google.com/file/d/1ZahWCEys7QcntiSH_ZXIWIQdF5lDjy_k/view?usp=drive_link

Ok so and to use 140mm rotors you turn it around or you need another adapter? Or do you use the normal one of shimano?

dovh

Re: Seraph Bikes Superlight 836g X68 - Alternative to SL8 Fakes?
« Reply #488 on: March 30, 2025, 01:31:07 PM »
Ok so and to use 140mm rotors you turn it around or you need another adapter? Or do you use the normal one of shimano?

I believe you can't use the 140mm front brake rotor. I don't know how that would work with this adapter. I don't think turning it around or something would work.
I remember when I was putting on the front brake caliper, I tested the Shimano adapter that came with the calipers, and that seemed to fit, so maybe 140mm could work.

tiz92

Re: Seraph Bikes Superlight 836g X68 - Alternative to SL8 Fakes?
« Reply #489 on: March 30, 2025, 01:39:12 PM »
I believe you can't use the 140mm front brake rotor. I don't know how that would work with this adapter. I don't think turning it around or something would work.
I remember when I was putting on the front brake caliper, I tested the Shimano adapter that came with the calipers, and that seemed to fit, so maybe 140mm could work.

OKay I see. I think there remains nothing left as to try for myself once I have the frame.

glepore

Re: Seraph Bikes Superlight 836g X68 - Alternative to SL8 Fakes?
« Reply #490 on: March 30, 2025, 01:49:32 PM »
Yeah, it remains a mystery. The actual sl8 is 160 only which causes problems in Campy land as they're standard front road caliper is native 160, so you end up having to use a rear caliper and Specialized plate, as Specialized chose unique spacing for the brake mounts. So it may be that Tantan ships this with a 140 mount or not. Guess we'll both find out.
My bike finally cleared outbound customs after being held for 6 days for "verification". Day 71 from payment.

Sander2177

Re: Seraph Bikes Superlight 836g X68 - Alternative to SL8 Fakes?
« Reply #491 on: March 30, 2025, 04:14:19 PM »
Yeah, it remains a mystery. The actual sl8 is 160 only which causes problems in Campy land as they're standard front road caliper is native 160, so you end up having to use a rear caliper and Specialized plate, as Specialized chose unique spacing for the brake mounts. So it may be that Tantan ships this with a 140 mount or not. Guess we'll both find out.
My bike finally cleared outbound customs after being held for 6 days for "verification". Day 71 from payment.

Jasus, 71 days! There must be a huge demand.

What’s size and colour have you ordered?

Woukd love to see more photos of your frames fellas and ladies!


I’ve been considering a few options, including the Taiwan Eisen and a few others, but Tan Tan seems to have more positive reviews. I’m now leaning back toward this frame for my build, which will go up against my genuine SL8. Planning to use XM wheels, Ultegra, a Ryet saddle, and an OSPW

glepore

Re: Seraph Bikes Superlight 836g X68 - Alternative to SL8 Fakes?
« Reply #492 on: March 30, 2025, 06:08:36 PM »
Nuthin special, just the pearl white shown in their promos. In fairness, paid 1/19, then the New Year came, then I hear paint was backed up due to the backlog, then they put the wrong cassette on and a couple days to email back and forth to make sure I was ok with it (32 vs 34 ordered, have a light 34 here anyway), then 5 days while customs inspected it. So likely not typical, but I ain't getting any younger.

I have a pile of stuff waiting, XM 50/65, quarq, light cassette, cages. Campy calipers and rotors to swap for the Wheeltop, yada.

Sander2177

Re: Seraph Bikes Superlight 836g X68 - Alternative to SL8 Fakes?
« Reply #493 on: March 31, 2025, 01:21:00 AM »
Nuthin special, just the pearl white shown in their promos. In fairness, paid 1/19, then the New Year came, then I hear paint was backed up due to the backlog, then they put the wrong cassette on and a couple days to email back and forth to make sure I was ok with it (32 vs 34 ordered, have a light 34 here anyway), then 5 days while customs inspected it. So likely not typical, but I ain't getting any younger.

I have a pile of stuff waiting, XM 50/65, quarq, light cassette, cages. Campy calipers and rotors to swap for the Wheeltop, yada.


lol ok well I will be very interested to here how you build goes.
I hope it goes well!
Still waiting for Patrick review

Sander2177

Re: Seraph Bikes Superlight 836g X68 - Alternative to SL8 Fakes?
« Reply #494 on: March 31, 2025, 07:00:42 AM »
Yeah so a local racer here just contacted me telling he ordered an X68 in the same size I ride, size 56.

He said once the frame is in his hands and built, he's happy to let me demo it. The lord giveth...

This is his order:
https://www.instagram.com/p/DHlFrh1PBn_/

That is a sweet colour looks to nice to race!
Well I'm sure they will also do this style in other colours  :D
I am getting close to pulling the trigger  ot sure what my weight weenie breatharian would think thought !  ;D