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Re: My TanTan TT912 build I still need to revisit the Versa BTA plate. its rocking against the arm cup, making annoying noises.
i will probably swapped the armcup to the ones on my Controltech aerobar kit on my TCR(currently the bolt is siezed).
swapped to my old  tcr giant approach saddle, since its lower stack. i may be in market for a short-nose saddle as my aliEx Pro Stealth saddle base getting soft n saggy

btw, this frameset used Sram UDH style hanger.

I finally got the bike completed, minus the temp crankset  8)
im a lil afraid to do bike photoshoot since its like a flag/sail, can topple at anytime when theres wind ::)

Frame: TanTan TT912 size52 + IceCrack blue paintjob
Stem: TanTan alu stem 100mm
Basebar: TanTan HB096 400mm
Aero extension: TanTan HB086 44° + 80mm w/ 15° angled riser
Brake lever: Tektro TL720
Saddle: Giant Approach  (from tcr)
Crankset: 105R7000 170mm (from tcr)
Chainring: 50/34T (from tcr)
PM: xcadey xpower2 left crank 170mm (from tcr)
BB: ztto bb386-24 normal bearing
Shifter: Microshift BS-A11
RD: 105R7000 SS
Cassette: 105R7000 11-28
Wheelset: Parcours Chrono 77/86
Rotors: 140mm MT-RT900
Caliper: Onirii BR005 mechanical

Quote from: Serge_K on March 22, 2024, 01:16:49 PM
Looks awesome, well done!
The whole thing looks stiff indeed. That seatpost is scary, i dont see how anything can deflect, so good thing you have fat tyres and steel spokes and not carbon ones. Make sure you follow recommended PSI and dont go italian by putting 100psi in 32C tyres. I have italian friends, i stopped trying to explain to them that it makes no sense to over inflate big tyres. Good, big tyres at the right PSI completely change a bike.
Such a chonly boi will never be light, if you check out triathlon forums, you will see people's bikes are super heavy, comes with the territory.
The bike looks like a sail, for sure it's going to be awful in cross winds :) Be careful when you see trucks, you can get pushed or sucked in hard on something like that, try not to die.

Thanks for taking the time to post, it's great to see Chinese TT frames.
Currently im still on 28mm gp5k front n back. once the rear worn out, definately gonna fit in 32mm. the cockpit felt a lil better now with the bartapes.
Since i already have the frame, folks can just AMA  ;)

Quote from: fluffycustard on March 23, 2024, 10:18:03 AM
Really great to see updates on this, the price of TT bikes at the moment is painful. I would love to know the actual weight of this and if you manage to sort the rattling / things getting loose
in SG even 2nd hand tri bike market going at silly price for the age of the bike. my build(minus parcours wheelset) literally can get almost 2 new speedmax cf7 105 mech.
the headset rattling issue was sorted with the micro spacers that i forgot.
tomorrow i'll weight the bike

edit: it weights 10.3kg equipped as in pic. bta not yet attached.
heavy AF.
i did considered a lightweight build ala Sebastian Kienle Norseman Tri scott foil tt-cockpit, but decided to go proper tri frame geo
March 23, 2024, 11:21:42 AM 		1
Seraph TanTan TT913 Tri frame just announced So yesterday i just saw the TT913 posting. I never seen this one before.
It looks like prev gen Plasma5 front end and Plasma6/new foil rear end. it looks different than tt001 and tt912

https://youtu.be/3Bu07-ycYyc?si=v2EOHQn9C60tyvDD

edit: add web link to specs
https://www.tantanbikes.com/full-carbon-fiber-internal-cable-disc-time-trial-triathlon-bike-frame-tt913-t47-thread-tt-bicycle-max-tire-700x28c-p5589271.html
April 11, 2024, 11:32:03 PM 		1
Re: Winowsports TT-119 - New Disc Time Trial Frameset Received yesterday. Overall pretty impressed with the weight and paint job. Definitely better than I could've done myself.

Came with a Profile Design bento box, 43asc clone extensions. Seatpost includes a 10mm thru rail. Basebar was 400mm and appears reversible. Included riser bolts mandate using every riser spacer. Will work out thread pitch and length and update tomorrow when I order extras.

Routing exits bars into the stem then down through the top tube, 3T/Cervelo style.

Maximum seatpost insertion is ~110mm due to the wheel cutout; if your saddle height is <810mm from centre of the BB cutting it down will be mandatory.
April 28, 2024, 06:00:20 PM 		1
Re: Winowsports TT-119 - New Disc Time Trial Frameset Info for anyone else who may be purchasing. Spacer bolts are M5, I bought sets in 20mm increments from 40-100mm from Bolt Depot for <$10 to play with pad height. I believe the spacers are compatible with the PD A3A riser kit, but have yet to order and check -- still getting other aspects of the fit dialed.


Some niggles:

- the hardware holding the arm rests / clamping the extensions is incredibly soft. I recommend replacing it right away.
- had to sand down the seatpost to allow for movement within the seattube
- bottle cage mounts are too far down the downtube to mount a standard bottle cage. Even with a sideloader the rear wheel cut out is too large to allow the bottle to sit flush. Might be fixed on larger sizes, but if even a 54 is too small I doubt it. Using a Wolftooth B-Rad to move it farther up the downtube for now, and planning to try the Cervelo aero bottle, which looks like it may clear.
- Stem clamps from only one side and has a weak hold on the steerer. Needs to be torqued to 6-7Nm or it still wants to turn. Going to try adding some carbon paste and see if that helps.
May 17, 2024, 12:36:29 PM 		1
Final build of the Winspace C5 Finally completed the build. Most of the parts from Ali
July 19, 2024, 03:27:33 AM 		1
Re: VeloBuild VB-TT-023 Here are some pictures of the cockpit, it has a decent amount of adjustability in my opinion. Unfortunately there are mounting holes on the top tube for extra hydration or bento box, maybe this can be added in the future.
August 25, 2024, 04:46:25 PM 		1
Re: VeloBuild VB-TT-023
Quote from: fluffycustard on August 27, 2024, 02:43:48 PM
I also ordered this frame a few weeks ago, still waiting for it to arrive. I also asked them to add some bento box rivets to the top tube which they said yes to, so that's an option.

Is there any way of routing di2 cables down the extensions? I was assuming that there was an exit hole somewhere at the bottom of the extensions but I cant see one

Yes, there are holes underneath the extensions for di2 cables and you have to route through the stem.
August 27, 2024, 03:47:39 PM 		1
Re: VeloBuild VB-TT-023 1st proper ride with the VB-TT-023 today

Bike is truly stiff, broke alot of PR’s today on a route that i havent been on for several months. Considering that this is my first time on a TT bike, i am truly happy with the frame and my build, no issues on a 63 mile ride with 1k feet of elevation, i completed the ride in 3:06.22 averaging 20.1mph on 204watts.
September 02, 2024, 07:37:04 PM 		1
Re: VeloBuild VB-TT-023 Picture from ironman event
September 09, 2024, 11:13:47 AM 		1
VeloBuild VB-R-066 build I've recently finished my VB-R-066 build, and I'm very pleased with the result. The total price for my build was right around $2500. Weight without pedals is right around 17.5 lbs. Here's the parts list:

Frame: VB-R-066 Disc, medium, custom painted by VB
Derailleurs and shifters: SRAM Rival AXS
Crankset: SRAM Force (gen1 with the separate spider and rings)
Chainrings: SRAM 48/35
Power Meter: SRAM Force
Cassette: Rival XG-1250 10-36
Chain: SRAM Rival flattop
Chaincatcher: Muqzi from AE
Bottom Bracket: AliExpress T47-DUB (86.5MM)
Seatpost: VB carbon 0 offset, came with frame
Disc rotors: Enlee 160mm from AE
Handlebars: RXL 42cm/44cm carbon (4 degree flare)
Bartape: Cinelli cork
Stem: Richey Switch 80mm
Upper headset: Ritchey Switch IS52 with 5-pack of extra spacers
Lower headset: VB bearing and crown race that came with frame
Expansion plug: Necco large
Saddle: Ryet 3D printed carbon
Pedals: NOS SpeedPlay Zero with spindles swapped out with AE aftermarket Ti 50mm
Wheelset: Yuan An YHG54-04D Ultralight with RD17 hub, XDR freehub, and Pillar 1423 spokes
Tires: Conti GP 5000 S TR 700x32, set up tubeless
Cages: random AE carbon cages
Decals: homemade on Cricut vinyl cutter

Some thoughts:

Dealing with VB was good with all communication over WhatsApp. Dealing with the time difference was a bit of a challenge, but I'm a night owl, so that helped. Took a couple of rounds to settle on the paint scheme. Even though we agreed on Pantone codes, they couldn't match the light green we agreed on. The first try was so off (much darker and more golden) that they agreed to start over, which I appreciated. The second version was brighter than the Pantone shade, but I didn't mind, so that's what they shipped. The repaint caused about a month delay. If you skip the painting process, you can probably get an in-stock frame in about a week. For me, the wait for the paint was well worth it.

I'm not an expert, but the frame and paint seem to be of very good quality. The fit and finish might not be up to Trek standards, but I'd have to be looking very closely to find any flaws. The ride quality is great IMO. Full disclosure, I have many bikes (Ti, Carbon, alu), and I can't really tell one frame from another performance-wise other than geometry. If you're looking for someone to comment on the nuances of frame flexibility and power transfer, I'm not your guy. I do think that the tubeless 32c tires that I run at 60 PSI on my road bikes provide so much suspension that vibration absorption from the frame is not super relevant. I'm about 5'10.5" and got a medium, which fits me great. I've configured it at the short reach/tall stack end of the envelope. There's plenty of room for more reach and less stack. The frame fits the 32c tires with 3mm to spare on either side of the tire.

I've built lots of bikes over many years and this assembly was very easy. This is my first foray into running the hydraulic lines through the headset, and it was no big deal. I decided to go with the Ritchey Switch system instead of the VB upper, and it worked with no drama. The fit was perfect with no gaps or play in the fork. I like that the semi-integrated routing between the stem and the plastic guide (similar to Deda Superbox and FSA SMR) allows for a little more flexibility in running the lines and experimenting with different stem lengths. The most difficult part of the assembly was finding the right tool for the T47 86mm BB cups. It's large and I didn't have that tool on hand. I ended up finding a used Park Tool BBT-47-16 for cheap on Amazon. The flange is very thin, so it's hard to maintain tool engagement, but I've engineered a DIY retention tool that worked great (the PT version is too expensive for me).

Love the Rival AXS drivetrain and find that it can be found for much cheaper than retail, making the price pretty competitive with the WheelTop and LTWoo options without the possible QA issues (though I am rooting for those guys).

I'm a little surprised that the VB-R-066 with its endurance geometry doesn't get more play. Folks seem to gravitate toward the more aggressive aero frames such as the VB-R-268. I like those frames in theory but just don't have the flexibility for that stack/reach ratio. As it is, I still have a bunch of spacers on the 066, though I'll probably lose a few over the next few weeks (didn't want to overcut the steerer before dialing in the fit). I have a tri bike for when I want more speed. The further forward BB in the TT/tri geometry allows me to get much lower/further forward despite my limited flexibility, but sometimes I just want to ride a regular road bike .

The wheelset from Yuan An is great. I started dealing with Leon but switched to Kelly when Leon left. The wheelsets take a while to produce, but no complaints. I asked Leon for the quietest freehub they offer, and he specified the RD17. Out of the box it was actually quite loud, but I lubricated the ratchet liberally with Dumonde Pro-X Freehub Grease, and that has tamed the sound without any engagement issues. It's now pretty quiet, roughly equivalent to the DT Swiss 16T 350 hubs on my other bikes (though I'm guessing if I packed those with the Pro-X they would be virtually silent).

Happy to answer any questions!
November 22, 2024, 01:37:38 PM 		1