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My TanTan TT912 build So back in Jan i place an order for TT912 via TanTan website contact thru whatsapp. After confirming the bike parts n confirm colour, paid it n wait for it to arrive.

My frame arrived last week.
Frame: TT912 with swapped cockpit. Instead of integrated kit, i went split stem n basebar. also swapped for carbon extensions
BB: Ztto bb386-24 normal bearing
Brake lever: Tektro TL720
Shifter: Microshift bs-a11
RD: 105 r7000 ss
Saddle: Chiner ism pl1.1
Brake caliper: Onirii BR-05


Wheelset n cranks will come from my current bike. i havent decide on crank lenght yet, but it will be in 1x:
wheelset: parcours chrono 77/86
cog: 105 11-28
crank: 105 r7000 50-34

Unfortunately the extension bar sent was wrong n few screws missing for stem cap. will be sent later (i may need to return current extensions). Paint job was good, but unfortunately theres a scratch on fork, probably during photoshoot (they made a vid on their insta/youtube).

As of right now im stuck with the basebar internal route hole on left side is obstructed  cable cant go thru
February 17, 2024, 08:59:41 AM 		4
Re: My TanTan TT912 build Since today is monday, i communicated about my basebar issue.
The rep will sort out a replacement basebar for me.

More pics on the saddle post mechanism. n said batt holder that goes inside top tube from the opening in front of saddle post

The saddle cage holder is full angle adjustable, n usable in single or dual bottle cage mode

/oh well, my build is further delayed
February 19, 2024, 08:44:18 AM 		1
Re: My TanTan TT912 build Tire fittings. will it clear larger than 28mm?
I think so.
Based on observation with my 28mm Gp5k on Chrono 77/86, it can clear 30mm, n perhaps even 32mm on wide rims

edit: add pic a mock setup, what the bike might looks like once its done (minus fitting, as i wont set up fit like that  :P )
February 19, 2024, 06:39:14 PM 		1
Re: TPU vs Latex innertube a tpu user here, on 700c roadbike.

i have used:
- revoloop ultra
- ridenow gen1 36g (big box)
- ridenow gen2 26g (the slimmer box)
- thinkrider 28g twinpack.

so far all my punctures are from sharp objects debris on road (glass, nail etc).
revoloop is expensive.
however my ridenows have reliability issues (seam glue failed, the rubber seal on innercore failed n loose air, etc). it looked like theres ridenow gen3 with metal valve. haven tried that.
now my rear tire is with thinkrider.

from 118g butyl to 30g tputube, thats insane weightsaving for minimal money
March 15, 2024, 04:16:27 AM 		1
Re: TPU vs Latex innertube
Quote from: ejump0 on March 15, 2024, 04:16:27 AM
a tpu user here, on 700c roadbike.

i have used:
- revoloop ultra
- ridenow gen1 36g (big box)
- ridenow gen2 26g (the slimmer box)
- thinkrider 28g twinpack.

so far all my punctures are from sharp objects debris on road (glass, nail etc).
revoloop is expensive.
however my ridenows have reliability issues (seam glue failed, the rubber seal on innercore failed n loose air, etc). it looked like theres ridenow gen3 with metal valve. haven tried that.
now my rear tire is with thinkrider.

from 118g butyl to 30g tputube, thats insane weightsaving for minimal money

my repair kit for these tpu tubes, I got myself the tubolito repair kit (yes, i patch my non-tubolito tubes with it).
it came with glue and patches.
The glue tube lasts a lot of patching job (so many nail n glass shards incidents). I create patches from my old retired tpu tube cutouts. I saved the tubolito thicker patches for only large cuts.
patch success rate almost 100%.
So as repair kit on the go (ie long distance, bikepacking etc) the reparability n reusability is close to/same as butyl with 1/3 the space.
Never used latex, so i cant say for latex reparability
March 15, 2024, 05:14:52 PM 		3
Re: Alternative for blipbox
Quote from: wousera on March 16, 2024, 12:24:12 PM
Thanks!!.

But i have to update the info above as sram seamingly did the unthinkable and just enabled the sram blips to function as a standalone shifter.

https://bikerumor.com/sram-wireless-blips-can-now-be-paired-w-o-shifters/

It enables some serious potential as the circuit boards are really small.

thats a good news for budget tri bike builder.
since we dont know when wheeltop n ltwoo gonna release tri shifter electronic trigger, apex axs rd + blips would be the cheapest 12sp setup (esp 1x mode)
March 20, 2024, 09:28:32 AM 		1
Re: My TanTan TT912 build So i had a breaking-in spin last Wed evening at a small loop in industrial zone where i live in this 90% form. its comfortable in aero position, though due to the brake lever now a lil further to reach, it took a while to get used to it. by 23km, ratling got loud. the angle-riser got loose, whole right extension was moving around. called it a day.

1st impressions:
- friggin stiff.. this is my 1st ever carbon bike, n 2nd time ridden a carbon bike (1st was a rental bike in Jeju for round-island solo attempt, Gusto RCR on 23mm tires).
- maybe it felt so stiff coz i havent install bar tapes. but i think i need to put some paddings at the wrist area on the curved extension. on uneven road, my wrist n watch was rocking against the hard carbon
- i need to cut the saddle post more. the clamp mechanism really gave few extra cm height.
- i havent weighted my bike, but its heavy. maybe coz low tier components, oh well. at least it had momentum once it got to speed
- sketch in crosswind. to be expected is the tubes are so much fatter against my TCR
- braking with mech disc onirii+compressionless jagwire is good. the bite is gradual. comparable to my Giant Conduct hydraulics on my tcr. not sure whats the faff that mech+disc is crap. (granted my test is in dry on flats)
- sizing wise, stack n reach seemed fine, though the top tube height is a lil high for my liking ince i install the bento box. going one size down i may end with shorter reach as this frame inly have 100mm stem max

Sorted both angle riser with propper torque.
Now to fit my Xlab torpedo base plate, i had to extend my aero extension bar to max, and the clamp still dont sit properly. its the arm cup design as its not flat inside.
Also swapped to my Chiner Pro stealth saddle temporarily as its few cm lower

needs longer ride on the weekend.
its really a head turner lol  ;D


 
March 21, 2024, 05:27:06 PM 		3
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 		3
Looking for Tri/Short nose saddles So i recently just built a tri bike.
However as i can now slam forward my saddle to be above bb, my ism pl1.1 copy that i have been using on my TCR no longer work. the 5.5cm width now just felt too wide.

What i currently have:
- Ism PL1.1 copy: too wide 5.5cm nose, soft plastic base that sags.
- ori Giant Approach from my tcr: 3.5cm narrow 270mm long, and long nose hurts ma crotch on longer ride when holding into aggressive posi. this is what i currently use as it doesnt sag as i sit further back, felt best vs others i have.
- Pro Stealth copy, 4.5cm plastic base. nose is ok-ish, but base is soft n sags
- Racework Bontrager aeolus copy. similar as Pro stealth, even more soft n sag

Im looking for AliEx special that have hard base thas still ok for lil to no flex but no sag on longer use, long rails, short nose width 4-4.6cm tip, and widest wing part lesser than 145mm. lightweight not necessity, but bonus. not too high stack ie the rail is tall.
padding, anything thats not slippery n not too grippy destroying shorts should be fine.

I did took a look at 3d saddle thread, n it seems the 3d mesh has potential destroying shorts.

Still scouring aliEx. found these:
- Spesh Sitero copy, not sure nose width. Original sitero review however kinda 50-50. not sure about copy
https://a.aliexpress.com/_oC6GzPI
- Ztto slight modified of Sitero? 4.8cm nose :
https://a.aliexpress.com/_oDnqJi4
- same shape as ztto, carbon no padding. no nose width info. butt destroyer? :
https://a.aliexpress.com/_omY7DYo
- belugoe. i dont know this is referenced of what saddle. unknown nose width :
https://a.aliexpress.com/_oCUKrZi
- ec90 fizik copy. straight noseless :
https://a.aliexpress.com/_oFXmedQ

is there selle italia watt copy?

TiA
March 29, 2024, 11:36:10 PM 		1
In-frame triangle storage box ala Speedmax Sup guys,
anyone know where i can find this kind of rubberized storage box ala Speedmax cf7 ?
i dont need those hard shell 3d printed ones that goes so expensive

/yes, im aware i can just cut the aero elite chrono bottle knockoff, but i like to see other options

TiA
April 02, 2024, 12:20:49 AM 		2