Author Topic: Velobuild VB-R-168 Frame  (Read 269914 times)

Irideslowly

Re: Velobuild VB-R-168 Frame
« Reply #1005 on: April 24, 2022, 05:40:37 PM »
just finished mine, not 100% happy about it to be honest.
The integrated bar in scaring me, it flexes a lot. plus the holes for the spacer's pin are misalligned.
the bb30 holes look a little loose.

idk if that happen to the other as well, but when i get up and push on the pedal you can feel some flex cause at every push you can hear the front disc touching the brake caliper

Regarding the front rotor touching while sprinting, i think this is an issue with a lot of carbon bikes. Chinese or not

Yunglord

Re: Velobuild VB-R-168 Frame
« Reply #1006 on: April 24, 2022, 06:03:06 PM »
not only carbon bikes.

The problem comes from wheels lacking lateral stiffness.


Zdrenka89

Re: Velobuild VB-R-168 Frame
« Reply #1007 on: April 25, 2022, 12:53:08 AM »
Regarding the handlebars:
I was skeptical too at first but I have grown to like them quite a bit. I'm not concerned strength wise anymore - I have done countless 1200W sprints and written the bike on hundreds of kilometers of bumpy gravel. Actually the vertical compliance does give some subtle dampening to the ride which is nice.  (I'm 88 kg for reference)

One thing that bugged me was some creaking from the headset even though it was tight. A bit of grease on the surface between the spacers solved it. Make sure to not get grease on the steerer tube ;)
« Last Edit: April 25, 2022, 12:55:58 AM by Zdrenka89 »

Tyson

Re: Velobuild VB-R-168 Frame
« Reply #1008 on: April 27, 2022, 10:57:53 AM »
Quick question, is anyone running mechanical Ultegra on this frame?  I've been looking for a DI2 groupset but they are $$$.  I'd love to get away with a mechanical set if I could.

patliean1

Re: Velobuild VB-R-168 Frame
« Reply #1009 on: April 27, 2022, 12:13:50 PM »
Quick question, is anyone running mechanical Ultegra on this frame?  I've been looking for a DI2 groupset but they are $$$.  I'd love to get away with a mechanical set if I could.

I am running mechanical Ultegra on my VB-177. It's a tight fit when routing the cables but it's totally doable.

renrew

Re: Velobuild VB-R-168 Frame
« Reply #1010 on: April 27, 2022, 03:55:23 PM »
Hello men,
Has anyone bought wheels from Chris?
How are the experiences. The price is OK.

St0mpB0x

Re: Velobuild VB-R-168 Frame
« Reply #1011 on: April 27, 2022, 05:32:54 PM »
not only carbon bikes.

The problem comes from wheels lacking lateral stiffness.

Could you elaborate on what you mean here? Because at first (and second) glance this doesn't seem to make sense to me.

patliean1

Re: Velobuild VB-R-168 Frame
« Reply #1012 on: April 27, 2022, 05:43:37 PM »
Could you elaborate on what you mean here? Because at first (and second) glance this doesn't seem to make sense to me.

Lateral stiffness is important because during a sprint, the wheels are no longer constantly vertical. So the force pushing the wheels can cause flex if the wheels aren't stiff laterally enough.

Imagine a wheel angled at 45 degrees, and the force from the cyclist pushing that wheel straight downward at 90 degrees.

memebike

Re: Velobuild VB-R-168 Frame
« Reply #1013 on: April 27, 2022, 11:22:58 PM »
Hello men,
Has anyone bought wheels from Chris?
How are the experiences. The price is OK.

I picked up the 50mm Disc wheels, no issues, had them for a month of so, done 400kms. Running tubeless Pzero 28's

cm8181

Re: Velobuild VB-R-168 Frame
« Reply #1014 on: April 28, 2022, 02:05:06 AM »
Quick question, is anyone running mechanical Ultegra on this frame?  I've been looking for a DI2 groupset but they are $$$.  I'd love to get away with a mechanical set if I could.
I am alsi running a mech Ultegra. It works fine. The routing of the Cables was not that complicatet as i thought.
Take your time with it and it will work.

renrew

Re: Velobuild VB-R-168 Frame
« Reply #1015 on: April 28, 2022, 03:18:18 AM »
I picked up the 50mm Disc wheels, no issues, had them for a month of so, done 400kms. Running tubeless Pzero 28's

what was your inner width

Zdrenka89

Re: Velobuild VB-R-168 Frame
« Reply #1016 on: April 28, 2022, 03:30:35 AM »
Lateral stiffness is important because during a sprint, the wheels are no longer constantly vertical. So the force pushing the wheels can cause flex if the wheels aren't stiff laterally enough.

Imagine a wheel angled at 45 degrees, and the force from the cyclist pushing that wheel straight downward at 90 degrees.

This is true for rim brakes... but not for discs. A centerlock rotor only has a connection with the hub and so any deflection that causes brake rub would have to occour in the bearings or the hub shell which is unlikely to contribute much if anything. However, more likely it is the forks deflection during a sprint that is causing the brake rub.

However it is a general carbon road bike problem and not a chinese carbon frame problem as stated previously.

memebike

Re: Velobuild VB-R-168 Frame
« Reply #1017 on: April 28, 2022, 04:37:06 AM »

hazzer19

Re: Velobuild VB-R-168 Frame
« Reply #1018 on: April 28, 2022, 10:32:44 AM »
I picked up the 50mm Disc wheels, no issues, had them for a month of so, done 400kms. Running tubeless Pzero 28's

Same here, I've been running the 50mm wheels for a few months and they have been great. Going to set up tubeless next.

renrew

Re: Velobuild VB-R-168 Frame
« Reply #1019 on: April 28, 2022, 01:34:29 PM »
Do you ride it on Gravel or RR.
25 mm inner width is huge, 22 mm would be normal
send me details of what you bought

« Last Edit: April 28, 2022, 01:36:01 PM by renrew »