Author Topic: Velobuild GF-002  (Read 27024 times)

coffeebreak

Re: Velobuild GF-002
« Reply #45 on: November 17, 2022, 02:41:22 PM »
Definitely. And frankly I am okay with it. The build is coming off nicely, just waiting for brakes and other misc bits and pieces. Wish I had planned for parts in a better manner.
Weather in Seattle is incredible for despite being mid November and I’m missing out on outdoor rides. Oh well.

Also an update on C ring and dust cap fitting about 1.7mm above the top of head tube - from a machinist friend I got my dust cap/base sanded off by a 0.6-0.7mm on the inside (outer part is untouched but the part that rests on C ring is now deeper by 0.7mm) this has solved the problem of unnecessarily large gap.

The dust cap now sits just about 1mm above head tube. There is no headset play after tightening the top cap.

Anyone having same issue - this something that I won’t recommend doing at home with Dremel (like I originally thought and quickly abandoned ship).

Edit: update on cable routing too - the whole BB shell area is massive on GF002 frame with relaxed angles. The cable for FD can be routed ABOVE the bottom bracket without crazy angles. In fact I tried both options (above and below BB) and routing above BB is less angular than from below.
« Last Edit: November 17, 2022, 02:45:47 PM by coffeebreak »

coffeebreak

Re: Velobuild GF-002
« Reply #46 on: November 23, 2022, 07:11:15 PM »
Are there any torque specifications for all the screws on this frame? Or should I just refer to my other bikes? My Roubaix has torque specs everywhere.

coffeebreak

Re: Velobuild GF-002
« Reply #47 on: November 28, 2022, 08:03:04 PM »
My GF-002 build is complete.

Some observations:

1. The painting of the frame took 2 weeks like Chris said. After it was painted, though, the shipping was fast. From China to my doorstep in Seattle it took exact 5 days.

2. Paint quality itself is satisfactory. The paint matches 90-95% with what I had in mind and has no obvious flaws that I could notice. All the screw/bolt holes were devoid of any paint and didn't have to clean anything.

3. Bottom bracket was not included in the box. Chris sent it after about a week. I decided not to use it anyway and got Token Ninja thread together model off of Amazon for $50.

4. I went with separate stem and handlebar combo thinking that it would be easier to route cables - big mistake. The internal cable routing was a nightmare. It was my first bike build so experience was lacking too but in the hindsight I should have just bought integrated handlebar. I am sure it couldn't be any more difficult than what I went through. On top, the frame came without any cable guides. Anyway, lesson learnt.
Also the compression-less SRAM brake cables caused more friction once I routed the cables than the cheapo cables that I got from LBS in the end. After multiple attempts at making SRAM cables work I gave up. So much time wasted and no returns, not to mention extremely hard to route. All the cables currently are moving freely without much friction and I am happy.

5. Apart from missing BB, rest of my order was complete with nothing missing. I got extra headset spacers, RD hangar, bottle cages.

6. The headset dust cap needed to be filed a little on the inside (previous few comments in this thread, for more detail) before it fit flush.

7. For my 183cm height, the seat tube is almost too tall. I have set it to lowest marking (10) and it is still a tad bit tall. My frame is size L.

8. The rear triangle of the frame does not accommodate post mount TRP HY/RD brakes with flat mount adapters. I learnt that the hard way. I don't think it is a problem on VB' side though. The TRPs are massive. They came off of my donor bike and I was disappointed that they did not fit. This caused me to order Onirii BR-05 set that took almost 20 days to deliver! Word of caution, if you are planning on using PM brakes with FM adapter, those either might not fit or will be too close to upper arm of the triangle for comfort.

9. The FD cable routing is confusing and the parts supplied by VB aren't a good fit. I used rubber grommets from a local h/w store to route FD cable to my liking.

10. No torque markings on any screws. I referred to my other CF bike for all the screws and used a torque wrench bought from Amazon.

11. Didn't want to risk anything and used carbon paste on seat post, handlebar/stem.

12. Token Ninja BB is a god sent gift. The fit is excellent and installation was a breeze.


Took almost a month but that's a blame on my part for not ordering right parts from get go, with those damn brakes taking frustratingly long time. Unlike most builds here, it is a mechanical build with parts that came off of a donor bike. Parts that did not come from donor were bought from Craigslist, OfferUp etc while brakes, misc. bits and pieces came from AliExpress.

And now the pictures from maiden ride today. It rides amazingly well. For my novice hands, the way it came together in the end, makes me proud.
« Last Edit: November 28, 2022, 08:17:25 PM by coffeebreak »

gandalf

Re: Velobuild GF-002
« Reply #48 on: November 29, 2022, 12:51:49 AM »
Nice one! What frame size is this one?

My GF-002 build is complete.

Some observations:

1. The painting of the frame took 2 weeks like Chris said. After it was painted, though, the shipping was fast. From China to my doorstep in Seattle it took exact 5 days.

2. Paint quality itself is satisfactory. The paint matches 90-95% with what I had in mind and has no obvious flaws that I could notice. All the screw/bolt holes were devoid of any paint and didn't have to clean anything.

3. Bottom bracket was not included in the box. Chris sent it after about a week. I decided not to use it anyway and got Token Ninja thread together model off of Amazon for $50.

4. I went with separate stem and handlebar combo thinking that it would be easier to route cables - big mistake. The internal cable routing was a nightmare. It was my first bike build so experience was lacking too but in the hindsight I should have just bought integrated handlebar. I am sure it couldn't be any more difficult than what I went through. On top, the frame came without any cable guides. Anyway, lesson learnt.
Also the compression-less SRAM brake cables caused more friction once I routed the cables than the cheapo cables that I got from LBS in the end. After multiple attempts at making SRAM cables work I gave up. So much time wasted and no returns, not to mention extremely hard to route. All the cables currently are moving freely without much friction and I am happy.

5. Apart from missing BB, rest of my order was complete with nothing missing. I got extra headset spacers, RD hangar, bottle cages.

6. The headset dust cap needed to be filed a little on the inside (previous few comments in this thread, for more detail) before it fit flush.

7. For my 183cm height, the seat tube is almost too tall. I have set it to lowest marking (10) and it is still a tad bit tall. My frame is size L.

8. The rear triangle of the frame does not accommodate post mount TRP HY/RD brakes with flat mount adapters. I learnt that the hard way. I don't think it is a problem on VB' side though. The TRPs are massive. They came off of my donor bike and I was disappointed that they did not fit. This caused me to order Onirii BR-05 set that took almost 20 days to deliver! Word of caution, if you are planning on using PM brakes with FM adapter, those either might not fit or will be too close to upper arm of the triangle for comfort.

9. The FD cable routing is confusing and the parts supplied by VB aren't a good fit. I used rubber grommets from a local h/w store to route FD cable to my liking.

10. No torque markings on any screws. I referred to my other CF bike for all the screws and used a torque wrench bought from Amazon.

11. Didn't want to risk anything and used carbon paste on seat post, handlebar/stem.

12. Token Ninja BB is a god sent gift. The fit is excellent and installation was a breeze.


Took almost a month but that's a blame on my part for not ordering right parts from get go, with those damn brakes taking frustratingly long time. Unlike most builds here, it is a mechanical build with parts that came off of a donor bike. Parts that did not come from donor were bought from Craigslist, OfferUp etc while brakes, misc. bits and pieces came from AliExpress.

And now the pictures from maiden ride today. It rides amazingly well. For my novice hands, the way it came together in the end, makes me proud.

coffeebreak

Re: Velobuild GF-002
« Reply #49 on: November 29, 2022, 11:15:31 AM »
Nice one! What frame size is this one?

I got size 56. Didn't measure if it's actually 56 though :D in place of sizing sticker I have an evil cat.
« Last Edit: November 29, 2022, 11:17:12 AM by coffeebreak »

lazywalrus

Re: Velobuild GF-002
« Reply #50 on: December 22, 2022, 09:54:11 PM »
My build is finally complete.
Might be of interest to some as it's a full Aliexpress/China build: GF-002, Elite wheels, Sensah SRX groupset, Juin Tech F1 brakes.

I’ve been interested in building up an open mould frame for a while, so with the price of new bikes and the second hand market getting a bit crazy (at least when I started ordering) this seemed like a good time to try.

Positives:

  • Production & shipping was way faster than I expected, I think just over 2 weeks from payment including custom paint job. I could have built the bike much sooner had my separate BB not got lost in customs.
  • The frame feels great, seems to ride like any premium carbon gravel frame, and the custom paint looks rad.
  • The overall finishing seems good, with no paint in threads, bearing races pretty clean etc.
  • I couldn’t see any obvious voids or terrible wrinkles in the carbon - but will report back if it snaps in half jumping off a curb.
  • I’m quite impressed but he SRX groupset, shifting is crisp and levers feel decent.
  • Elite wheels seem fantastic on the short rides I’ve done so far. Tubeless ready tyres popped right on with a track pump.
  • The Juin Tech brakes, now set up and bedded in are solid. Not quite hydro feeling, but much much better than BB7s I've previously used. They could probably be made better if my cabling wasn't such a mess too, or just external routing.


Negatives
  • Threading compressionless housing through the bars+ stem + frame is ridiculously difficult. Compressionless housing is too stiff to get round the corners and it gets wedged in hidden corners of the bars. I’d estimate I’ve spent over 8 hours trying to get it set up right here, although that’s largely because I screwed up the first run. I’m also running 1x here, doing a mechanical 2x setup + compressionless housing would be extremely difficult.
  • Seat clamp: the front bolt can’t be accessed with an Allen key unless you have a cut-out saddle, so fine-tuning the angle is a bit of a pain
  • The bottom bracket pressed in worryingly easy. I could tighten the press-fit tool by hand, without a wrench. It’s not creaking yet, but I’m expecting that I might have to add Loctite retainer in the future. This is a Rotor BB not a VB one.
  • Minor gripes: Wasn’t supplied enough bolts for all the bosses, the seat post doesn't slide that far down so I had to cut a lot off it to get it to the right height, where the cables exit the frame and attach to the brakes/derailleur causes quite sharp angles.

The headset
  • I got the separate bar and stem as I wanted the option to swap out the bars to attach aerobars for really long distance rides. I also wasn’t 100% on the geometry, I just matched it to my road bike. In retrospect with the integrated cables swapping the bars out is something I’m going to try and avoid.
  • I got the updated headset that Chris has mentioned in previous threads, this seems to resolve the issues others were having of not being able to preload the bearing. However, it definitely has not been perfect. I’ve battled it slipping and coming loose, not being able to preload sufficiently for several days now.
  • Possibly the issue lies in the way is presses the C clip/dustcover into the bearing, it looks uneven and I’m assuming this then causes it to slip slightly under hard braking. If I’m careful with aligning the C pointed exactly straight ahead, arrange the cables to sit evenly spaced, and add a little carbon paste on the stem it seems to work.
  • I’ve also got a 1-2mm gap like coffeebreak mentioned above. I think I’ll just cover it with silicon as removing the dust cover is an ordeal.
    I think long-term the solution is probably still to go with the FSA headset.

Overall, very happy with it so far - but haven't put enough miles on it to give it a proper review.
Total cost about $2.7k AUD/$1.8kUSD.

coffeebreak

Re: Velobuild GF-002
« Reply #51 on: December 23, 2022, 02:47:38 AM »



Negatives
  • Threading compressionless housing through the bars+ stem + frame is ridiculously difficult. Compressionless housing is too stiff to get round the corners and it gets wedged in hidden corners of the bars. I’d estimate I’ve spent over 8 hours trying to get it set up right here, although that’s largely because I screwed up the first run. I’m also running 1x here, doing a mechanical 2x setup + compressionless housing would be extremely difficult.
  • Seat clamp: the front bolt can’t be accessed with an Allen key unless you have a cut-out saddle, so fine-tuning the angle is a bit of a pain
  • The bottom bracket pressed in worryingly easy. I could tighten the press-fit tool by hand, without a wrench. It’s not creaking yet, but I’m expecting that I might have to add Loctite retainer in the future. This is a Rotor BB not a VB one.
  • Minor gripes: Wasn’t supplied enough bolts for all the bosses, the seat post doesn't slide that far down so I had to cut a lot off it to get it to the right height, where the cables exit the frame and attach to the brakes/derailleur causes quite sharp angles.



I'm relieved I'm not the only one who had these problems. Just 8 hours for routing though? I spent probably 4 days lol. I probably routed and pulled out cables and routed again about 20 times and in the end couldn't get compressionless housing work. It was frustrating to say the least. I also filed all the edges of the stem and handlebar where ever the cables were rubbing.

Same for the saddle bolt. It was almost impossible to tighten it.

But, all is well that ends well. Your build looks cool, I wish you many happy miles on it!

Edit - that seat post is ridiculously tall. Mine is pushed way below lowest marker. That's the only way I could make it work. Strange, I never had such issue on any bike.
« Last Edit: December 23, 2022, 02:50:13 AM by coffeebreak »

lazywalrus

Re: Velobuild GF-002
« Reply #52 on: December 23, 2022, 03:19:41 PM »
I'm relieved I'm not the only one who had these problems. Just 8 hours for routing though? I spent probably 4 days lol. I probably routed and pulled out cables and routed again about 20 times and in the end couldn't get compressionless housing work. It was frustrating to say the least. I also filed all the edges of the stem and handlebar where ever the cables were rubbing.

Same for the saddle bolt. It was almost impossible to tighten it.

But, all is well that ends well. Your build looks cool, I wish you many happy miles on it!

Edit - that seat post is ridiculously tall. Mine is pushed way below lowest marker. That's the only way I could make it work. Strange, I never had such issue on any bike.

Haha yes you’re definitely not alone. That was 8 hours spread across multiple days after I had to give up several times, traumatic.
I also filed the sharp edges a bit, only after they had removed a lot of housing coating though.

I assume VB uses the same seat post for all frame sizes, so maybe it’s the right length for really large frames? Odd though.
 
Yours looks fantastic too, happy riding

coffeebreak

Re: Velobuild GF-002
« Reply #53 on: January 01, 2023, 11:12:48 PM »
Managed to put just about 400 miles on the build this past month thru snow, ice and just terrible weather all around. The bike held up well. I find the frame comfortable and yet reasonably stiff, as in the power transmission seems pretty efficient though, I am not a racer. My observation comes from comparison with Giant Revolt which feels rather sluggish.

Anyhoo, as last day of the year gift I put on ICAN aero 50mm wheels shod with Panaracer 32mm gk ss on the bike and it has made a big difference in the ride. Faster and lighter yet grippy where it counts. Also replaced funny looking bartape with old school black tape for cleaner looks.

Overall, quite happy so far.

TeamO

Re: Velobuild GF-002
« Reply #54 on: February 03, 2023, 11:28:25 AM »
Hi guys,
I started building my own bike for the first time.

Frame: Velobuild GF002
Group: Sensah Empire 11s
Brakes: ZRace BR-005 (mechanical disc brakes)
Wheels: Elite Wheels Edge
Tires: Conti GrandPrix 5000 S TR (tubeless)
Shift cables/brake cables and housing: Jagwire Pro

Currently I am in the process of routing the housing in the handlebars. But this is much more difficult than I thought. It is so complicated that I think I will not manage to lay the housing cause there ist not enough space. Attached I have a few photos of the current state. I managed to get the housings of the brake cables in the handlebar, but I don't see a chance to get the housings for the shift cables in there as well.
Does anyone of you have a tip?

It is the separate handlebar and stem from the GF002.

coffeebreak

Re: Velobuild GF-002
« Reply #55 on: February 03, 2023, 12:50:13 PM »
The routing on these bar/stems is pain in the arse. I spent so much time on it. In the end two things helped, lot of cursing and inserting shifter cables first and then brake cables. But that is still a LOT of work and frustration may ensue.

It was much later that I came across this simple trick and used on Fuji roadie to convert to semi icr -

Gijs11

Re: Velobuild GF-002
« Reply #56 on: February 04, 2023, 05:29:11 AM »
Hello everyone,

This is my first post on this forum, after many hours of reading.
I'm currently the owner of a grey-white-red GF-002 in size L.
It is setup with the Sram Rival AXS group set including powermeter.
I also used my AR56 lightbicycle wheelset with the grey Vittora tires.

Before I also had a GF-002 in matte black with a mechanical Sram Apex1 group set which I sold a couple of months ago.

I love the bikes, but on both I had/have some problems with the headset.
On the first matte black one I've used the integrated aero bar that was delivered with the old C-ring.
After filing the knobs of the C-ring and the spacers I eventually got rid of the headset play, and it stayed away.

But now on my new grey-white-red one I placed the separate stem with an FSA ACR compact bar.
So that I have the opportunity to place aerobars.

This bike already came with the newer C-ring without knobs but I can't get rid of the headset play.
Every time when I tighten it again then after some rough roads the play is coming back.
When I tighten the topcap I will get the play out and then I tighten the bolts of the stem to 5.5 Nm.
I also used Carbon paste.
But when riding over a rougher sections of road every time the play comes back.

Any ideas?
Greetings from The Netherlands

coffeebreak

Re: Velobuild GF-002
« Reply #57 on: February 04, 2023, 10:26:37 AM »
Welcome, fellow GF002 owner! This is an issue that many have faced and tried to resolve in different ways with varying degrees of success. The C ring, spacers/headset and that aero cap from VB all add to the issue. For me, the top cap is glaring issue because it deform when you tighten the screw meaning the required torque to keep it tight is eaten by cap's flexy material. There is a thread dedicated to this issue and seems using FSA headset (no 55) solves the issue to some extent -

http://chinertown.com/index.php/topic,3683.0.html



s3si1u

Re: Velobuild GF-002
« Reply #58 on: February 04, 2023, 11:23:40 AM »
Hello everyone,

This is my first post on this forum, after many hours of reading.
I'm currently the owner of a grey-white-red GF-002 in size L.
It is setup with the Sram Rival AXS group set including powermeter.
I also used my AR56 lightbicycle wheelset with the grey Vittora tires.

Before I also had a GF-002 in matte black with a mechanical Sram Apex1 group set which I sold a couple of months ago.

I love the bikes, but on both I had/have some problems with the headset.
On the first matte black one I've used the integrated aero bar that was delivered with the old C-ring.
After filing the knobs of the C-ring and the spacers I eventually got rid of the headset play, and it stayed away.

But now on my new grey-white-red one I placed the separate stem with an FSA ACR compact bar.
So that I have the opportunity to place aerobars.

This bike already came with the newer C-ring without knobs but I can't get rid of the headset play.
Every time when I tighten it again then after some rough roads the play is coming back.
When I tighten the topcap I will get the play out and then I tighten the bolts of the stem to 5.5 Nm.
I also used Carbon paste.
But when riding over a rougher sections of road every time the play comes back.

Any ideas?
Greetings from The Netherlands

On my 177 a combination of cutting the steerer tube a little bit more to just the perfect height removed the play when used with the new C ring. I eventually switched to a Cane Creek top cap with a tiny spacer under it and never had an issue again.
I now use a different stem/bar combo (The One) with its own compression ring and top cap that also preloads perfectly and doesn't come loose. That's always an option.
You can also try the FSA compression ring or headset, there's cheaper copies on AliExpress. Maybe a different stem or top cap would also help, the top cap that is provided seems to have a lot to do with it.
Instagram: @aerosloth

Gijs11

Re: Velobuild GF-002
« Reply #59 on: February 05, 2023, 06:36:41 AM »
Thanks for the tips and the link to the topic!

I've already ordered a longer expansion plug, maybe that helps.
And I think i'm going to modify a normal round spacer and try to fasten it with the normal round topcap that was provided by velobuild. Because I also think the play is caused by the original flexible top cap that deforms when I torque it.

Will post an update if the problem is solved!