TanTan TT-X38 Build

[FlandersCyclist]

I made some TanTan decals. An EPS-file ready for plotting is attached in case anyone wants to have them too.

What size is your bike and how high is the saddle if I may ask?

[Frank]

What size is your bike and how high is the saddle if I may ask?

Size 56 and saddle height is 78,5cm.

[neobiker]

Finally, I found a brand that sell TanTan bikes in Europe:

https://www.atom6cycling.be/en/bikes/road/

[Frank]

I made some more decals including a Tantan Logo. An EPS-file ready for plotting is attached.

[Serge_K]

I havent looked at geometry charts, but the seatpost looks a bit like a triathlon seatpost with the ability to move the saddle mount fore / aft. But if that's the case, by how much? a triathlon seatpost would typically have much more play.
And so from that, is this supposed to be a bike that lets you sit more vertical vs BB, like a triathlon bike would?
The shape of the seat tube is reminiscent of the Giant Trinity, so is it just looks, or is that bike you can dial in more than typical road bikes to lay flat and go fast on?

[Frank]

I havent looked at geometry charts, but the seatpost looks a bit like a triathlon seatpost with the ability to move the saddle mount fore / aft. But if that's the case, by how much?

I haven't actually measured the exact amount of movement possible, but I guess 15mm in total.

[Eddy_Twerckx]

How are you guys finding the stiffness of this frame? I'm looking for a stiff aero frame for crits. Would this fit the bill?

[Sebastian]

I havent looked at geometry charts, but the seatpost looks a bit like a triathlon seatpost with the ability to move the saddle mount fore / aft. But if that's the case, by how much? a triathlon seatpost would typically have much more play.
And so from that, is this supposed to be a bike that lets you sit more vertical vs BB, like a triathlon bike would?
The shape of the seat tube is reminiscent of the Giant Trinity, so is it just looks, or is that bike you can dial in more than typical road bikes to lay flat and go fast on?

The frame's got a pretty steep seat tube angle. Steeper than 74 degrees in some sizes. "Only" 73 on my size 58. The seatpost with the saddle clamp all the way back has very little setback if any at all. So yes. If you like to get on top of your BB this frame is for you.

[Sebastian]

How are you guys finding the stiffness of this frame? I'm looking for a stiff aero frame for crits. Would this fit the bill?

I got the biggest size and I'm 82kg. I find this frame to be plenty stiff in the BB area. So power transfer feels good to me. The bars (on my version which is not the Tan Tan frame but the Ceccotti/Sequel Sports one) are also very stiff. The only area where I feel it flexes more than I would like is the headtube area under sprinting. If you really pull the bars at high speeds when sprinting the headtube area flexes and that can lead to the front wheel steering feeling slightly wobbly. Not enough to really bother me but I do notice it.

[ejump0]

I havent looked at geometry charts, but the seatpost looks a bit like a triathlon seatpost with the ability to move the saddle mount fore / aft. But if that's the case, by how much? a triathlon seatpost would typically have much more play.
And so from that, is this supposed to be a bike that lets you sit more vertical vs BB, like a triathlon bike would?
The shape of the seat tube is reminiscent of the Giant Trinity, so is it just looks, or is that bike you can dial in more than typical road bikes to lay flat and go fast on?

i dont have this frame, but since it looks like the new Foil, check out Seb.Kienle's 2023 Norseman Tri Foil setup for inspiration

[MHcell]

Hi,

I have been riding my X38 for almost a year now. It has a quite hard life as I also commute on it in every kind of weather.
Currently I am thinking about a rebuild (there are some creaks and I forgot the foam housing for the brake hose). Does anyone know the headset bearing specs? Would a standard ACR bearing fit? This would also allow me to get a new narrow cockpit.
Thanks.

Regards,
Michael

[Serge_K]

that's a pretty gangster build for a commuter bike! i especially like the mullet big ring + huge MTB cassette. What group & gearing are you running?
For the bearings, can't help, i'd ask tantan directly

[MHcell]

that's a pretty gangster build for a commuter bike! i especially like the mullet big ring + huge MTB cassette. What group & gearing are you running?
For the bearings, can't help, i'd ask tantan directly

Thank you  . It was not itended to be a commuter bike. But it is so much fun, that I haven‘t ridden my actual commuter bike in half a year.
It is a SRAM rival AXS groupset (46 chainring) and a GX eagle derailleur (10-52 casette). Works well.

[Cape_Kirk]

hi there,

does anyone know if the original foil seatpost or the hylix seatpost fits in the x38 frame? would be great weight saving (hylix)

thanks

[lantz]

hi there,

does anyone know if the original foil seatpost or the hylix seatpost fits in the x38 frame? would be great weight saving (hylix)

thanks

I don't, as I only have the X38 and haven't really done the cross-referncing/am not a spec-head in the high-end big brand models - but I am curious if there are contemporaries to this seat post as well because I'd like to find a better interface cover - the little rubber flap that TanTan provides is.. meh. I'd love something a bit tighter and more secure.