Author Topic: LTK266-D-SL, race frame, 680g, <800g w/paint & metal parts (M), fits 35mm+ tires  (Read 382593 times)

Sakizashi

Please enlighten me about the the common standards, but why do the LT bearings seem to work with the Kocevlo, Lightcarbon etc. spacers/compression rings but not the FSA ones? Is there a difference in standard concerning the inner camber of the top bearing? I tried to understand what I was doing when I was ordering Headset and Bars, but eventually gave up, since there is basically zero information about the slight differences there are.

Honestly, without having the Kocevelo parts in hand or their design specs, I can't tell you other than that they used the same size by coincidence.  Lightcarbon doesn't publish their headset specs, but they do make adapters, including one specifically for the FSA ACR system, and they are responsive enough to help make sure you get the right parts to fit.

FSA also has multiple bearing sets you can buy. Its like BB standards but worse.

The reason why FSA (and Deda) headsets are recommended is that the LTK-266-D SL has an HT made to specs that match their dimensioned reference drawings- and again, based on them being the most common.

There is some logic here, though it's admittedly not perfect.

tastycrousti

Hello everyone, first post on Chinertown!

I’ve built the LTK266 D SL and I’m currently doing my first few kilometers on it. I’ll post more detailed information once I’ve had the chance to ride it a bit more, so I can give more accurate feedback and impressions.

One important thing I noticed: the seatpost clamp bolt absolutely needs to be replaced with a 28–30 mm one. The original bolt sticks out too far and, when tightened to 8 Nm, it presses hard against the internal carbon. In my case, this left a pretty noticeable mark and even caused a small chip in the carbon.

By the way, does anyone happen to know the exact Carbon-Ti thru-axle model that fits this frame? The original thru-axles are really heavy, and I’d like to replace them with something lighter.

andyitslit

Just some better pictures

ownthesky

That looks really great Andy, you did a lovely job! How are you finding the grip on those bottle cages?

FrostedDyslexia

Just some better pictures

really nice bike! what bartape is that? looks comfy

andyitslit

really nice bike! what bartape is that? looks comfy
Fizik Comfortfeel 3.5mm, feels nice!

That looks really great Andy, you did a lovely job! How are you finding the grip on those bottle cages?
They're solid and very lightweight. I did order panda's aero bottles but at this point I'm not sure if they'll show up.  :-\

waltthizzney

Can anyone comment on sizing?

I am 175cm and ride a 52cm Tarmac with a 120mm stem

Should I go for small or medium, looking for racy geo, but with the medium I could slam it, correct?

I had a LTK118 before and it was a great bike, trashed it for 30,000KM with no issues


just got my frame, with custom painting. I am trying to figure out what kind of design they used for the rear derailleur hanger. It seems a sort of unfitting, to me..


Sakizashi

Can anyone comment on sizing?

I am 175cm and ride a 52cm Tarmac with a 120mm stem

Should I go for small or medium, looking for racy geo, but with the medium I could slam it, correct?

I had a LTK118 before and it was a great bike, trashed it for 30,000KM with no issues

This bike comes with a zero-offset post, so there is likely more room to experiment going forward if you want with the Medium. Longer, not lower, is the current meta, and if you can get the stack you need slammed anyway, no reason to buy the small.

Sakizashi

just got my frame, with custom painting. I am trying to figure out what kind of design they used for the rear derailleur hanger. It seems a sort of unfitting, to me..

They use a UDH, so any UDH can be used as a replacement.

They use a UDH, so any UDH can be used as a replacement.

sure, but it seems to me that the hanger is not fitting the frame. It's kind of cumbersome

alexgaignard

Hey everyone, just wanted to drop some thoughts now that I’ve put 1,000km on the frame.

First of all I want to say I'm really enjoying the bike. Coming from an alu gravel bike it feels super fast ! Climbing is much more easier, I feel like I can hold 35kph easy on a flat road whereas before it felt like I always had to push, now with this bike it feels like it's holding the speed much more.

Bike is also very comfortable, did a little weekend trip with it and even after 140k I felt good.

Only downside I found is that the paint is quite thin, the top tube bag rubbed a little on the top tube and there is some scratch marks.

As far as mechanicals, the frame has been super reliable, no seatpost slippage, no disc rub, no weird creaking or anything. Just had an issue with the crankset but not related to the frame.

Would 100% recommand the frame to anyone, as a first time builder, assembling process was easy, and there is no troubleshooting to do even after set up as it just works.

Little update after 6000km, not much to say as the bike is holding up really well.

GravelMaxxer

I also had the issue with the FSA Acr top cover rubbing on the frame and had to add 0.5mm spacer. I strongly advise anyone who will build this bike with fsa acr to do the same. But it’s perfectly fine otherwise.

hobbyst

Hello,

I’ve been riding with the OEM-provided bearings for a while now with no apparent issues. The bike has been a joy to ride.

I recently decided to switch up my handlebar setup and figured it’d be a good time to upgrade the bearings as well. Based on the comments in this thread, I believe this is the correct FSA model to use as a replacement:

https://www.jensonusa.com/full-speed-ahead-acr-no-55r-headset

Could anyone who has bought the FSA bearing confirm that this is the correct one?

TIA!
« Last Edit: September 02, 2026, 07:53:44 AM by hobbyst »

andyitslit

Hello,

I’ve been riding with the OEM-provided bearings for a while now with no apparent issues. The bike has been a joy to ride.

I recently decided to switch up my handlebar setup and figured it’d be a good time to upgrade the bearings as well. Based on the comments in this thread, I believe this is the correct FSA model to use as a replacement:

https://www.jensonusa.com/full-speed-ahead-acr-no-55r-headset

Could anyone who has bought the FSA bearing confirm that this is the correct one?

TIA!
Yes this is the one I used.