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Messages - Tom77

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1
Road Bike Frames, Wheels & Components / Re: Seraph Bikes Superlight 836g X68 - Alternative to SL8 Fakes?
« on: November 11, 2025, 01:48:47 AM »
Quote from: naiboo on November 07, 2025, 04:44:25 AM
I'm struggling with the sizing of the x68 / SL8 and seeking advice. I´m 178cm and inseam of 82cm. Saddle height from center bb to top of the saddle is atm 76cm and stem 110.
I currently ride a Scott Addict 20 2015 and a Scott Speedster Gravel 2023, both in 54. Both fit nicely and to be fair i've mainly ridden the gravel lately and love it. https://geometrygeeks.bike/compare/tantan-tt-x68-2024-54,tantan-tt-x68-2024-56,scott-addict-10-2015-54,scott-speedster-gravel-20-2023-m54/

According to SL8 sizing i fall exactly between 54 and 56. I tend to go to a 54 atm but i fear that it is too agressive and need a spacer stack of ~2cm to fit me well.

Any suggestions are highly appreciated.

54 for sure

2
Road Bike Frames, Wheels & Components / Re: Seraph Bikes Superlight 836g X68 - Alternative to SL8 Fakes?
« on: October 24, 2025, 09:07:04 AM »
New tires


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Road Bike Frames, Wheels & Components / Re: Seraph Bikes Superlight 836g X68 - Alternative to SL8 Fakes?
« on: October 23, 2025, 02:26:27 AM »



4
Road Bike Frames, Wheels & Components / Re: Seraph Bikes Superlight 836g X68 - Alternative to SL8 Fakes?
« on: October 23, 2025, 01:54:39 AM »
Finally completed my bike.

  • Xiamen Carbon Speed D50CU-33 T1100 wheels
    Michelin Power Cup 30mm (will get replaced by Veloflex Corsa 32mm)
    Ultegra Di2 w. DuraAce clamps & cage
    SRAM Red E1 crank w. Sigeyi Axo powermeter w. Shimano rings (34/50)
    Ztto cassette (11-30)
    Campa discs 160mm f/r
    CEMA bottom bracket(ceramic)
    Chaser direct hanger
    Chaser brake adapters
    Elita carbon saddle clamp
    Titanium bolts all around
    Shimano brake pads with titanum back plates
    7g bottle cages
    Shimano DuraAce pedals
    MagCAD Garmin mount
    Carbon saddle (china stuff), will be replaced by BERK Dila
    ZIPP Service Course CX bar tape

Total weight is 6,65kg complete

Haven't done a proper ride yet, but the front section is significant softer than the one on my SWORKS SL6 w. a ZIPP carbon stem and 3t carbon handlebar.
The bottom bracket section is also not as stiff as the SL6, but not that drastic.

The fork is the heavier one (406g), the color matching is not perfect, but decent.










5
Road Bike Frames, Wheels & Components / Re: Best super light frameset for 2026 build?
« on: October 22, 2025, 04:15:41 AM »
Would not opt for Tantan X68.

I bought one and despite the awful buying experience (ultra long waiting, wrong paint job, faulty fork, non-faced BB and brake mounts), is is significant weaker in the head tube section than my S-Works SL6.

The frame is 860g painted in sz56 and I'm not sure if it is the frame of the handlebar which makes it floppy at the front, but I'm not satisfied overall

6
Road Bike Frames, Wheels & Components / Re: Seraph Bikes Superlight 836g X68 - Alternative to SL8 Fakes?
« on: October 09, 2025, 04:20:52 AM »
Finally I received my replacement fork.
Haven't checked the colormatch yet, cause I'm on a business trip this week.

My seatpost fit is also sloppy, it is too wide so the post is not fixed and can slightly turn to left/right.
Will check an OEM post, maybe that one will fit better.

7
Road Bike Frames, Wheels & Components / Re: Seraph Bikes Superlight 836g X68 - Alternative to SL8 Fakes?
« on: September 17, 2025, 03:55:13 AM »
Got an update on my replacement fork, it got painted and will be sent within the next days.
Hopefully my built will be complete soon.

8
Road Bike Frames, Wheels & Components / Re: Seraph Bikes Superlight 836g X68 - Alternative to SL8 Fakes?
« on: September 15, 2025, 03:22:17 AM »
Quote from: CoreX88 on August 13, 2025, 10:44:32 AM
Finally I'm back on the road. Fork took long to arrive, but the paint color matches perfectly and I survived my first two short rides 8)

Put some titanium parts, new solid oil bearings (way cheaper than CS https://www.kugellager-shop.net/acb495h6-5-bo-max-sl-steuersatz-kugellager-vollkugelig.html) and a lighter wheelset plus cassette on the bike which is now about 6,85 kg with everything on. I'm still loving that color, it really shines and pops in the sun!

Wish me luck, that everything works out in the future. It really rides lovely!

At least you are back on the road  8)

9
Road Bike Frames, Wheels & Components / Re: Seraph Bikes Superlight 836g X68 - Alternative to SL8 Fakes?
« on: September 15, 2025, 03:21:26 AM »
Quote from: dovh on August 11, 2025, 10:20:54 AM
Here's an update on the fork: I received a new fork from TanTan in the mail today. All seems good, and the new fork is definitely heavier than the previous one. It is 401g uncut.
This new fork was not painted that well compared to the original one. There is quite a lot of overspray on the brake mounts, and they painted the inside of the thru axle, which was not painted on the original fork. But it's not a big deal i guess I can just sand it down.
also the old one had like a metal insert on the end where you screw in the thru axle and this one does not have it. (there is one gold washer on the thru axle and one in the fork on the old one)
Edit: there was no metal insert in the old one i must've remembered it wrong. 

I will update the post after I replace it on the bike.


At leats you got the new fork, I got promised a new one and nothing happened since 6 weeks, not even painting.

10
Road Bike Frames, Wheels & Components / Re: Seraph Bikes Superlight 836g X68 - Alternative to SL8 Fakes?
« on: September 06, 2025, 07:06:36 AM »
Quote from: Sander2177 on August 19, 2025, 12:31:48 PM
Took my bike to the mechanic today to get the brake mounts properly faced.
Honestly, I should have done this before I built it. The brakes were never 100% perfect – no rubbing when the wheel spun, but they weren’t sitting dead-centre on the rotor. Under braking the pad engagement wasn’t even on both sides, unlike a properly finished frame.

On the road it felt fine most of the time, but out of the saddle there was a small “dink” noise that became annoying.

Worth noting: these frames don’t come faced. To the eye they might look okay, but the bottom bracket shell and brake mounts aren’t machined flat and level like the genuine SL8.

The BB itself has been fine, but the shell is painted right up to the edge of the threads. On the real SL8 this area is faced clean to bare carbon for a perfectly flat surface. Mine looks neat, but it isn’t truly faced, so I’m having that done as well to make sure everything is aligned.

After swapping bars, I had a headache with the front caliper – every time I tightened it, it would shift slightly. In the end I took it to the pros.
Could not find a facing tool on Aliexpress at all and for the cost and how often it would get used not  worth buying one.

Will be interesting to hear what the LBS mechanic thinks

Second this

BB  was faced by myself, but it's hard to find a bike shop which has a tool for the brakes and which is willing to do the job.

11
Road Bike Frames, Wheels & Components / Re: Seraph Bikes Superlight 836g X68 - Alternative to SL8 Fakes?
« on: September 06, 2025, 06:54:44 AM »
So here's a short update on my bike:

Ordered in march
Wrong painting by tantan
Month long delays until new paint job
Broken fork (light version)
Another 5 weeks since exciting time for the new fork which is not even painted

Despite that, the seat post does not fit into the frame, it's too loose sideways, but i can buy an OEM one


To sum it up: Would never buy again the frame and never again at tantan

12
Component Deals & Selection / Re: chinese carbon saddles
« on: August 07, 2025, 07:17:25 AM »
Quote from: Wet Noodle on May 28, 2025, 05:53:21 PM
If the poking bit in the middle would at least vibrate or something ...

My ex girlfriend is riding this one, she's a winning ultra-long distance racer (Atlas mountain race, silk road race, tour divide, etc)

13
Road Bike Frames, Wheels & Components / Re: Seraph Bikes Superlight 836g X68 - Alternative to SL8 Fakes?
« on: August 07, 2025, 03:28:24 AM »
Axle ist appr. 30g, so fork appr. 400g, should be fine

14
Road Bike Frames, Wheels & Components / Re: Seraph Bikes Superlight 836g X68 - Alternative to SL8 Fakes?
« on: July 20, 2025, 05:47:08 AM »
All forks with QR code on the steerer tube running around 340g are at risk.
3 forks are reported so far, tantan changed the supplier for the fork for a reason!

The new forks are not only heavier at 400g but also have different thread inserts etc.


Right now I'm still discussing to get a fork replaced, disgusting

15
Road Bike Frames, Wheels & Components / Re: SL8 / Seraph X68 Triathlon Aero Bar
« on: July 16, 2025, 04:52:10 AM »
If you are going with integrated setup, no.
Whether ridiculous expensive, or not as a unit.

I would go for the suggested option.
As long as you are not clamping too far away from the stem section  (and keep the leverage low), it should be fine.
The clamp is not sharp and fitting the geometry of the handlebar, so no pressure points to be expected.
 

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