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Re: VeloBuild VB-R-268 frame
Correct. First impression video and then long-term video per usual. Even if I were to conduct standardized test, I would get called out for doing "bro science" as other YouTuber's have. Thankfully the support of this very forum over the years is what allows me to continue and make content. I'm very grateful. Using the same wheels, could you do a NorCal kind of video on a loop you know well, swapping 2 or 3 bikes? You have to use the same wheels for any credible kind of comparison. Your times would be interesting, but equally interesting would be your impression. I take issue with the "because it's 500usd it can never compete with a 1500usd frame", given the 268 is t800&1000, EPS moulded, proven geometry & shape: it's latest best practice afaik. Now yoeleo or the likes are, afaik, just taking oem frames and branding them for a premium, just less of a premium than western brands. Having looked at their specs sheet, manufacturing methods, reputation for QC, the reason why I don't buy them is because I don't see that my money would go into the frame. I'd like to be proven wrong, because I can afford to pay 1500 for a frame, or 5000 for that matter, but i care about relative value. Last, i saw you have a colnago video, any chance you would test ride that with your own wheels for comparison? Colnago Vs velobuild video would break the internet 
April 17, 2024, 02:00:09 AM |
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Re: VeloBuild VB-R-268 frame
I can see that I am not the only one having issues with rear caliper mount. How do you guys manage it? Do you have any clever tips to align it? Usual methods i.e. tightening mounting bolts with a brake engaged with or without metal shim doesn't work. Here are my steps, assuming after a fresh and proper brake bleed: Step 1: Re-seat/Recess the pistons fully back into the caliper. Very important step. Step 2: Loosen the caliper bolts. Step 3: Firmly engage the brake to the rotor. I usually squeeze about 4-5 times to fully engage the pistons. Step 4: Torque calipers bolts while brakes are engaged. Release brakes. Step 5: Spin the wheel and inspect any rotor imbalances or brake rub. A white strip of paper behind the caliper really helps. Step 6: Slightly loosen the caliper bolts and use metal shim. Step 7: If that doesn't work you can also use a very thin plastic/paper one sided shim on either side of the rotor. Rotor shims can also be helpful if the wheel hub in general is too far offset/off-center at either side. April 19, 2024, 02:58:27 PM |
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Re: VeloBuild VB-R-268 frame
Update on my 268 Highs -I love the Mavic thru-axle system. It's quite convenient actually. Being able to keep the axles in place when both transporting the bike and working on it on a mechanic stand is great. -The bike is both stiff and nimble enough. I can't say there really is any discernible difference in stiffness compared to other bikes. Unless you are truly sprinting or climbing, there will be plenty of other variables in regards to maintaining any set speed. -Visually I appreciate the frame design. Obviously because it looks like an SL7/Venge. Well rounded proportions. The sloping top tube gives the visual impression of an extreme saddle-to-handlebar drop versus a more horizontal top tube. More exposed seatpost (should?) also means more comfort as the seatpost has the ability to flex. 32c GP5000 tubeless fits no problem. Lows -Zero setback seatpost. It's not fully problematic for me, but I had to move my saddle back far more than I'm accustomed to. If this was my only road bike it would most likely be a deal breaker. A non-issue for most folks however. -7x9 saddle clamp for carbon rails. On my particular clamp when using my AliExpress carbon saddle (7x9 rails), visually it does not appear as if the clamps are fully engaging with the rails. Other 268 owners with carbon saddles have not experienced this, and so far the saddle has stayed put. However, the saddle clamp bolt is now slightly bent from trying secure to the rails. Also a non-issue if you're using 7x7 rails as VB also supplies clamps for that too. Just something to be aware of. -While the bike as a whole rides better than my previous VeloBuild frames, it does still suffer some from road chatter at the rear triangle. Rough pavement can upset the back end. Thankfully though still far better than my Dengfu R12 and TanTan x38 in this regard. This is completely subjective and anecdotal of course. Over the past few weeks I've made an effort to rotate riding each of my bikes everyday day to get a good feel on the differences and overall riding dynamics. Closing It's a great DIY bike at the price point so far. As always, wheel selection and bike fit/position will do most of the heavy lifting. If I could change anything it would be adding more reach to cockpit to offset the zero setback seatpost. Dear VeloBuild: Please make one for me thanks! May 02, 2024, 03:06:12 PM |
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Re: VeloBuild VB-R-268 frame
My 5 cents: careful with colours. You can get super durable decals cut for cheap locally, and you can change your mind every week. You can't change your mind with a colour. A colour also directly affect resale value. I chatted with a guy on Insta with a 168, white, who said his only regret was getting the frame painted white. Counter point. I got my 168 painted in white with pink logos and a blue fork. I have zero regrets after over a year with this paint job. I bought an open mold because it was cheap and gave me the option of custom paint. I don’t have nor did I ever think of resale value because it’s an open mold and who is buying second hand open mold frames? I wanted something fun and unique. My point is: get the paint you want. Forget about resale value. Get the paint job that excites you and makes you want to ride your bike. We’re not talking about $5000 frames and $2000 custom paint jobs. Mine cost an extra $50 to go wild and do custom logos. The whole package was like $650 before shipping. Have fun with it. I can say with 100% certainty that I would have regretted getting a black frame. Part of the fun with an open mold is the custom paint options. That’s my opinion at least. I didn’t see the point of getting a plain matte black frame when custom paint is so cheap. May 03, 2024, 08:34:24 AM |
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Re: VeloBuild VB-R-268 frame
That's amazing, love the fact you put a sram red group on a VB frame Serge, yes the Campagnolo WTO are legits, imho are the best wheels in the market with the exception of the BoraWTO Ultra. Of course they are hooked rims. Despite of 45mm + 28 tire you barely feel the side winds. I did many changes with this frame: 1. I choose a small frame (and a seat post with zero offset) so it will allow me to be more aero, you will see some extra spacers but I can have my forearms flat (horizontal) when my hands are on hoods and my upper arms are 90 degrees with the forearms. 2. Also the present trends is for shorter cranks, so I have 160 mm which has many benefits. How the VB rides? I love the ride, it climbs very well in part because is light, sprinting with hands on the drops it follow you, but the most important is descending where you can take hairpin corners at good speed, push down the handlebars and bikes respond as the best one, so you can shorten the radius or curvature in the middle of the corner. In summa love the frame, VB had done a superb job. July 31, 2024, 09:37:36 PM |
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Re: VeloBuild VB-R-268 frame
The new frame VR-R-268 is a product of the present trend in pro bike racing. So here few points. #1. Aerodynamics is the major element that pro racer looks for. The pro riders know their CdA and how to decrease it. The more aero you are the faster you go for the same power. #2 CdA is the quantitative measurement of aerodynamic drag. The "A" is the frontal area of both the rider and the bike presented to the wind in the direction you travel. You can decrease the "riders part" of the A by being on the drops instead of seating up. VB has paid a lot of attention to this part. #3 Cd is the coefficient of drag. For example if you place a flat disk in a wind tunnel and make the A=1 the surface area will be 1 but the force the wind actually exert on the disk is a little higher let's say 1.15. So the CdA will be 1 x 1.15= 1.15. Now instead of flat disk, place cone with the tip forward and a front area the same A=1, but now the coefficient of drag will be far lower so the total CdA will be far lower (that is the reason why bullets for example are not flat at the front). Here VB has done a superb job in decreasing the Cd. #4 VB aerobike like the VR-R-268 is aimed at decreasing the Cd even if in some cases you may have a little weight penalty. Lower seat stays with a flat top, aero seat-post, kamm tail the downtube and a very nice combination of the seat-tube and rear wheel-tires to make the air flow smooth. The seat-post in the present bikes is more exposed comparing with years past so an aero seat-post is a must. VB has done a great job here. 5. The rider also has a "A" and "Cd". The "A" is obvious the more down the rider is the smaller the "A" but the "Cd" is not as clear, racer used to adopt the "puppy paws" position (which now is ban)etc. The point here is that the position on the bike has changed and VB has done everything possible to allow this change. The seat is more forward as much as you can without braking the UCI rules "The tip of the saddle shall be a minimum of 50 mm to the rear of a vertical plane passing through the bottom bracket spindle." This forward position allow to open the leg body angle so you do not hit your body when you pedal. VB zero-offset seat-post goes along with this trend. Also rider use short saddles to go around this rule. 6. Along with #5 the back is flat and when racers place hand on the hood but keep the forearms flat (the most aero position) it is important than the angle between arms and forearms is 90 degrees or less so the distance between between brake hood and saddle is smaller than in the past, so you want a short top tube. To accomplish this aspect, pro racers are choosing smaller bikes than before. VB has a small frame and a 9 cm stem as the smallest. VB is ok here, even it could have offered an 8cm stem. 7. Components are also part of this trend. Cranks are shorter that were in the past, for example Tadej (176 cm) is using a 165 mm crank, Filippo Ganna (193 cm) iirc use a 170 crank for the hour record, MVP (184 cm) is in 172.5. The smaller cranks offer aero advantage, and also you are working in the area where mechanically you are stronger. Of course you need gears that you can spin. VB is compatible with all the component manufactures. 6. In pro racing mixing areas with good asphalt with unpaved or gravel road are becoming very common. Having a frame that accepts different width tires is important so you do not need to have a different bike for each terrain. VB has done a great job here allowing as to use tires up to 32. Many other frame manufactures have aero bike but basically designed around the 28 mm now standard in road racing. With this VB frame you can have 2 sets of wheels like a road with 28mm tire and wider rim wheel with a 32 mm gravel tire and if you want to do some rough single track gravel you just change the wheel. 7. Aerodynamics are important in flat terrain but also during climbing when you have a head wind, or the grade is not very steep, having you body down help, you can feel it on your legs and also if you have the correct setup, you may see the CdA not increasing. Few of the pro's climb with the forearm flat on the top of the handlebar. 7. The only part the VB has not touch for aerodynamics is the flared handlebars. The UCI set also rules there and a small flare would be OK. This rules changed in Jan 2024 included the brake levers angles and it may change again. In summary VB offers a high quality frame with almost all the features that are trending in pro racing, before I got it I look around and I could not find one that I could place a check mark in each of the features I wanted with the exception of VB-R 264. I have been trying to explain why the the VB-R-268 is my choice. VB has many frames with different features and for many of us may be better. I have more than a month since I start to ride, which I do everyday, in different terrains, with a 28 tire you can do most of the gravel. Sometime next year I will get a "gravel" wheel to do single track. Chris has been great with fast replies to all my questions, so to have a good online service is also important part of the frame. I am very happy with this bike. Note: I got and extra seat-post and seat-post clamp when I placed the order for the frame, I like to have them as spare and the price was very reasonable. The seat-post seem very solid and very nicely made so most likely I will never need them. October 18, 2024, 07:20:33 PM |
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