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Re: LTK266-D-SL, lightweight frame confirmed under 800g w/paint and accessories (M)
OK, so tried out a few bearings. The 45° ones sit higher on the crown race. I think this indicates to me that the 36° is the correct bearing, as it's the bottom edge, not the top edge of the chamfer, that's limiting the wrong size bearing. My grease trick didn't work as well as I had hoped. That said, the bike visually looks the same from the outside with the 40x52x7mm 45°/45° vs. 40x51.8x8mm 36°/45° The one that is obviously wrong is 40x52x8mm 45°/45°. I am going to assume that Alisa's information is correct and that the headset parts some of you received were incorrect. The correct bearing set should then be the FSA No. 55R September 24, 2025, 10:55:39 PM |
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Re: LTK266-D-SL, lightweight frame confirmed under 800g w/paint and accessories (M)
Would be interested in that as well. Also greetings from Germany 
September 25, 2025, 05:04:30 AM |
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Re: LTK266-D-SL, lightweight frame confirmed under 800g w/paint and accessories (M)
Hello, 1. I will start with the headset -- You seem to know this, but to be clear for everyone lurking: you can get the DEDA DCR package with a 36/45 bottom bearing -- https://dedaelementi.com/headset-dcr (look at the spec sheet) -- and this should work perfectly well based on my (brief) testing. 2. LTK vs Prince -- https://geometrygeeks.bike/compare/pinarello-prince-fx-disk-2021-545,longteng-ltk-266-d-sl-2025-l/ measurements look pretty damn close! So you shouldn't have much of a problem transferring your fit. I have similar measures with slightly longer inseam. I run a much longer stem but that's all preference and individual fit. 3. The LTK266-D-SL only comes with a zero offset seatpost. I run a similar setback to you, and I was coming from a 15mm offset post on my BMC. On the LTK I had to move my seat back on the rails to compensate, but I was still able to keep a 90mm-100mm setback. I am currently experimenting with that, though, because on the BMC hardware, I didn't have room to experiment with a position any further forward than ~90. 4. Cannot speak to replacing the saddle clamp parts. I made sure Alisa included clamps for 7x9 carbon rails, but I'm still using the same hardware. The single bolt design is a drag and the stuff is somewhat heavy, but I couldn't find a better replacement. It's the design itself that sucks, not necessarily the parts? 5. Will let those more knowledgeable in china carbon speak to frame quality comparisons. The thing rides great. September 25, 2025, 05:49:44 AM |
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Re: LTK266-D-SL, lightweight frame confirmed under 800g w/paint and accessories (M)
Yes, thanks you very much and I apologise for the concern caused. No worries, it's a legitimate concern, and honestly, it's tough to tell the difference. I also had the same question during assembly, as a 36° molded CR isn't common, IME. However, I'm not familiar with too many factory-direct frames, so my references are mostly branded. Based on my review and confirmation from Alisa three times (she sent another note this morning), I am confident that the 40x51.8x8mm 36°/45° is the correct bearing. Which Ritchey part did you replace the LTK seat post with? Does anyone have a link? I am the guy who briefly fitted a Ritchey part. I ended up not using it because it was heavier. I also swapped out the stock bolt for a ti M6x55 one. I am a pretty light-weight rider, so that doesn't worry me. The Ritchey part is this one, and yes, it does work a lot better because the rubber thing stays in place and keeps the assembly together when loosening and adjusting it. https://ritcheylogic.com/bike/seatposts/wcs-carbon-1-bolt-seatpost-complete-clampset?srsltid=AfmBOopf1lEDFlrBYhQ3s_K5hoSOPoE2WTMgrDv44HcwRXlHfPWDh3SU I would use an FSA No55 at the bottom. I'm not sure if you have any spares that came with the Alanera, but what you need is a Deda ACR C ring. This should have been in the box. Otherwise, they are like 5 euros from Deda or a Deda distributor. These are Grey in color and says 36°x45° on them. You put that on top of the FSA or other 40x51.8x8mm 36°/45° bearing and you should be good to go. I think Deda uses a universal design for their headset covers between the different fitments, but that's worth checking, as the 36° and 45° setups vary by about 0.5mm or so. You can also use the Deda bearing for the upper part of the headset. That bearing is 40x51.8x8mm 45°/45° and should be paired with their black C ring. Either solution should work. Hello, Ive had a couple of open molds from Flybike/Carbonda as well as a branded frame from Flybike. This bike is much nicer than those were, particularly in terms of not being too stiff in the rear while still being laterally stiff around the BB. That said, my last frame from them was a gravel bike purchased in 2018 and retired in 2024, so I don't know much about their current models. September 25, 2025, 01:26:38 PM |
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Re: LTK266-D-SL, race frame, 680g, <800g w/paint & metal parts (M), fits 35mm+ tires
Hi, a newbie on the topic here  from what I can understand about LTK266-D-SL, the frame is very nice and also quite responsive and for me it really ticks a lot of boxes. But the thing I am slightly concerned about is the size of the frame for 183 cm because my legs are probably on the longer side, running 79cm seat height. I noticed a few of you riding the bike at approx. 180cm, do you feel the frame is on the smaller side for you? Also where would you place the quality of the frame or its ride feel compared to other OEM frames? For instance, the Spcycle r088 seems quite nice but from what I understand, LTK266-D-SL should be better in terms of quality and ride feel. About LCR017d, I have mixed opinion. It is heavier, looks more aero, but some people say it is quite squishy in some parts, so I am not so sure about its stiffness. Maybe with slammed stem it would look nice, maybe a little bit similiar to the Cannondale supersix evo. I am asking this because next season I am a retired U23 pro cyclist and to be honest I want the frame to be nice to ride, responsive. Not the type of frame that is fast on paper, but then it is sluggish to ride like if you got some bad replica of an SL8...yeah it looks nice, is good in the wind tunnel because it is same geometry, but isn't joy to ride. Thanks for your thoughts! October 10, 2025, 03:10:54 PM |
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Re: LTK266-D-SL, race frame, 680g, <800g w/paint & metal parts (M), fits 35mm+ tires
Hi, a newbie on the topic here I'm just a hair under 183 and I am fine on the L. However, I run my seat height at 76cm. Presumably my legs are slightly shorter than yours, and also I do like to run a bit lower of a seat because of mid-foot cleat position, etc. I do not think the frame is too small for someone at 6ft/183cm but it's personal preference. I prefer a 56 with a long stem. And given that I'm running the 130mm/-10degree stem nearly slammed, I don't think I'd get along with the higher stack height of a 58/XL if one existed anyways. But that's all preference. Have you ridden a 58 previously as a racer? If you were a pro u23 i'd think you would want a smaller frame, tbh, given the trend toward running frames even two sizes 'too small' in the pro peloton. I can't compare to other OEM frames, sorry. Looks-wise (and aero-wise) you need to be OK with the lack of aero shaping. The bike feels stiff and responsive but not harsh. So yeah the BB area is stiff enough but so much depends on touch points and wheels/tires as I'm sure you know as a pro. Definitely not feeling squishy or noodley. But I don't have the experience with modern (say post 2020) Western bikes to make good comparisons here--need someone else to chime in. Hope this helps. October 10, 2025, 03:40:24 PM |
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Re: LTK266-D-SL, race frame, 680g, <800g w/paint & metal parts (M), fits 35mm+ tires
Finally slammed the stem today. This bike is a weapon! October 15, 2025, 02:40:06 PM |
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Re: LTK266-D-SL, race frame, 680g, <800g w/paint & metal parts (M), fits 35mm+ tires
First-time poster. This is my second bike from Long Teng, the first being the LTK 268 (Thank you @Serge_K for the recommendation). The LTK 266 handles noticeably differently from the 268. The bike went together fairly easily, I only had to drill the hole for the front derailleur cable, as it was too small.Yeah! Congrats on the awesome build, man! Could you take a photo of the drive side, using your phone's 2x...5x lens, landscape orientation, from waist level not head height, just a basic bikeporn-photo-rules. It'll be great for the first post gallery if @Sakizashi doesn't mind adding! ——— I also found a few builds photos while researching the Chinese internet:      
November 03, 2025, 03:27:56 AM |
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Re: LTK266-D-SL, race frame, 680g, <800g w/paint & metal parts (M), fits 35mm+ tires
but if someone can help with other spacers i would give the handlebar a try! some quick pics: Black part was promissed to be just ud raw with matt clear cote! November 09, 2025, 06:12:01 AM |
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Re: LTK266-D-SL, race frame, 680g, <800g w/paint & metal parts (M), fits 35mm+ tires
So regarding the TPU printed covers for the seatpost clamp. I did not understand how hard the TPU would be. It sort of works. The upper profile is about right, but the part needed to try and keep the insert down were too big so I had to cut them to fit and without it, it does curl up per the second photo. I am trying again, so we can revisit my second try in about 10 days.  
November 11, 2025, 09:28:51 PM |
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