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Re: Velobuild VB-R-368 Aeroframe yeah, attributed some fuzziness of the photo to black parts on black frame on a white background and using a phone, but looking at it closely on a bigger screen, the details are all fucked, very clearly generated slop, just a cancer on modern society
October 08, 2025, 02:02:45 PM 		1
Re: Velobuild VB-R-368 Aeroframe Frame arrived on Wed.

Very well packaged, and all wrapped in that stretchy foam roll.  Haven't fully unpacked it yet - want to keep it protected to take to get built.  But I did open up the bars enough to look them over and confirm they are the 380/110 I ordered so very happy about that.  The finish that I can see so far is excellent so no reason to believe the rest of it won't be just as good.

Getting it built next week, will update with any observations on the build and some photos once complete.
October 10, 2025, 03:52:46 AM 		1
Re: Velobuild VB-R-368 Aeroframe If you could take some photos just to see the finishing/frame design I’d appreciate that!
October 10, 2025, 03:59:19 AM 		1
Re: Velobuild VB-R-368 Aeroframe Weights:
Seatpost: 256g
Seatpost hardware: 81g
Handlebar 400x100: 385g
Fork uncut: 481g
Axles: 67g
Headset cover: 23g
October 11, 2025, 05:52:43 AM 		1
Re: Velobuild VB-R-368 Aeroframe DANG! That looks so aero, I could not care less if it's heavy. Or how awful it will be in the crosswinds.

Imagine pulling up to the coffee shop on that thing. Along with your nuts dragging on the floor.
October 11, 2025, 02:21:33 PM 		1
Bike Frame Index - My database on Chinese carbon frames Bike Frame Index - My database on Chinese carbon frames

I discovered this forum in July and have spent an intense few months reading threads and bookmarking information while researching my own (road) frame purchase. To make sense of it all, I compiled my notes and bookmarks into a database that might be useful to others, especially people new to buying bike frames from China, perhaps doing their first road frame build: bikeframeindex (dot) com

What it is:
A summary of my research comparing popular Chinese carbon road frames on here, Weight Weenies, YouTube and Reddit. Each entry synthesizes what I found across hundreds of forum posts about geometry, quality, reliability, and value. It's of course quite biased toward my own priorities, and i'll underline that I am quite risk averse, but I've tried to capture trending issues and recurring themes from community discussions.

What's included:
  • Technical specifications and build comparisons (index page)
  • Tire clearance, BB standards, compatibility details (index page)
  • Community feedback synthesis/trends, mainly from Chinertown threads (ratings page) with quality and reliability patterns I noticed
  • EDIT: A two-tier ranking, between frames which seem to have overwhelmingly strong feedback and other frames, some with mixed feedback or too few entries
Limitations:
Some emerging frames like the Lightcarbon LCR018-D aren't included - first deliveries are just hitting the market now, so there isn't enough feedback yet. I've mentioned the new Tideace frame, not more. The selection reflects frames with more history or community discussion at the time I was researching. Some models like the LTK 268-D is “bundled” within the VB thread and has fewer entries but some of the mentions suggest it could be a notch better in terms of build. To call this dataset statistically significant would be wrong, but the level of knowledge and dedication on here and other forums makes the feedback highly credible in my opinion.

What's next:
I plan to add more frames in quarterly batch updates as feedback accumulates. If there's interest, I'd welcome community suggestions for which frames to research and add next. I’ve not considered Gravel frames or TT frames, just because I don’t look for any. I own my dream build gravel bike so road frames was top of mind, but if the site seems to deliver on its purpose- helping others in my shoes, I won’t exclude adding other categories over time.

No commercial interests:
No affiliate links or monetization - this is just my research notes made public. I've added placeholders in the code for Google ads in case I bother with that later, but no plans currently.

Check it out and let me know your thoughts. Constructive feedback welcome. This is an iterative process, meaning that I've published a MVP with the ambition to improve on it continuously.

bikeframeindex (dot) com

Edit/updates:
Actions taken regarding feedback below, which is very helpful in improving the site. Focus was on the "ratings" page where I've scrapped the points leading to the ranking and instead created two tiers which are neutral amongst the frames. Some minor tweaks and typos corrected.
October 12, 2025, 11:32:52 AM 		1
Re: Velobuild VB-R-368 Aeroframe I have aero testing equipment (Gibli sensor). Would be very interesting to benchmark this frame vs my Aeroad.

If anyone is in the Netherlands and has this frame, feel free to drop me a message.
October 15, 2025, 12:14:21 PM 		1
Re: Lightcarbon: LCR018-D (endurance all-road)
Quote from: Serge_K on October 30, 2025, 01:09:52 AM
A bike with a rider on it will always go faster than one that's in the shed with no wheels.
Frame aerodynamics do matter, and it does matter if you go fast, like group rides at 40kmh on the flat. I can tell you that the wrong rig will cost you, and it's noticeable. Will a slow frame + tight clothing be faster than a fast one with loose clothing? Yes ofc, but that's not really the point.
From experience, the sum of marginal gains is everything but marginal. If you go fast.

Congratulations if you’ve found a bike that feels faster to you, we all love that feeling.  And, I don’t mean to troll but I believe that your comments should be tempered with some empiricism.

How does one know what is an aerodynamic bike (by which we mean an aerodynamically efficient bike)?

It is proven that we can’t necessarily see aerodynamics.  Many shapes which are proven aerodynamically efficient don’t look it and vice versa. 

Aerodynamic testing of bikes has improved, but still provides only approximations of real world aerodynamics.  Aerodynamic claims and advertising are generally general w/o reference to the key operating conditions of the claim.  I have yet to see bicycling related aero claims based on, or promising, results on the full frame and/or rider size range.

Marketing often touts the benefits of deep profiles w/o considering that the leading edge is most critical and should be parabolic. Rim/tire profiles are hysterical: they represent only one small portion of the 360 degrees of the wheel presented to the wind. 

Cross winds and controlling stall characteristics are critical to: 1) ensuring stability regardless of effective wind direction; 2) tend to guarantee shorter profiles which are less efficient than longer profiles.

Riding 40kph in a pack doesn’t depend so much on bike aero as it does pack aero.  That’s why people ride in packs. 

So it’s problematic for a rider w/o wind tunnel access to evaluate what is the most aero bike for themself.  And accordingly, it’s usually a fools errand for an individual to try to select a new bike based on supposed aero efficiency.

Aero is great, but hard to find,
October 30, 2025, 09:27:11 AM 		1
Re: Thinkrider PP5 power meter Guys, i think its working

not proper test and indoors and i was blown from yesterday ride, but xcadey gen 2 demonstrated some problems even indoors. pp5 solid on sprints like my pes505 or fsa powerbox
Tomorrow will ride proper test and post here. My test on xcadey in its thread with setup and method if you want more now
January 31, 2026, 01:53:23 PM 		1
Re: Thinkrider PP5 power meter I have 1 suspicious sprint undershoot (900 vs 950 and flat cadence reading from pp5), but everything else seems fine. Please check my files, maybe i missed something

Whole ride was with +3% offset for pp5 (after my first ride), but i think it should be +2% - 1 watt under direto on low watts and spot on on 300+ is better than exact low watts but +2-5 on high

Comparing with Elite Direto (very first one) and Magene PES505.
For past 7 years Direto was tested with FSA PowerBox (Power2Max NGEco) and Xcadey gen1 spider. In those tests Direto had identical readings with some constant offset - fsa no offset, magene offset +4%, xcadey gen1 -2% - so Direto my control device.
I have only spider PMs, so no triple recording and no outdoor comparison

Test protocol - copied from GPLama, with free ride first, sprints, some ERG work, more sprints and 2 stops in the middle for calibration. FIT files and screenshots attached

I really think they did it. Now we wait for Shane and others guys, especially outdoor rides, to be certain
February 01, 2026, 02:01:41 PM 		1