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Seraph aka Tantan TT-X2 Was browsing Aliexpress for Chinese carbon frames after watching a couple of tracevelo YouTube videos and ended up buying this frame from Seraph.  Ordered on 14th September, for £201. Arrived 8th of October.  Seller was good, communicated well (occasionally took 2 days to reply) and on first looks v happy with the quality. Built it up with 105 groupset and took it on a short test ride yesterday. Rode really nicely, a huge upgrade from my old raleigh 100. V satisfied.
October 11, 2021, 11:34:57 AM
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Re: BXT Road 115 (BXT-ROAD-115) The big issue with the Press Fit is creaking. I had some minor creaking issues from my PF 86/92 Wheels Manufacturing thread together BB, but when I switched over to a SRAM DUB 29mm spindle Wheels Manufacturing BB, I have had no issues across two different frames. The biggest issue was the cost of all the tools to remove and install a traditional PF. On the other hand, I had a BSA on my aluminum frame Giant road bike that I ended up stripping clean in around 2000 miles of riding. The frame was trashed but Giant replaced it, no questions asked.

Other things that get talked about are the big fat bottom areas that builders can design because the PF BBs sit flush with the frame.

Anyway, with a little research, you can read all about PF versus BSA but it all just comes down to what's cost effective and worth your time.

December 10, 2021, 11:00:53 AM
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Re: Velobuild VB-R-177
Looks really great! Congratulations!
How is it holding up so far?
I am considering to get this frame.
How is the seatpost? Does it slide down out of position when riding?
Also how is the stiffness of the button bracket area?
Thanks for any response you can give.
The bike has been great so far!
Haven't done many rides...maybe 10 x 40 miles, but it's very comfy (28mm tubeless tyres help with that).
The seatpost hasn't slipped at all. The good thing is that it's a standard round seatpost, so can be replaced if you wanted to. You could save a little bit of weight.
As far as the bottom bracket stiffness goes - I'm not really qualified to say! I've only been riding since Covid and the only other bike I've ridden is a 2012 Giant Defy, so I haven't got much to compare to. Plus I wouldn't say that i am the most powerful rider and i've never tried sprinting or trying to dance on the pedals going up hill.
I love it, and it always gets questions from other riders when out and about so it looks great too.

December 13, 2021, 03:14:03 AM
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My Dengfu R12 - First Impressions and Video Hey All!

My name is Patrick. I've been lurking for a couple of months and finally have enough newsworthy details to create a post. Have not seen much discussion on the Dengfu R12 frameset, so I'm happy to share my first impressions and build experience. Included below is a 10 minute video of my unboxing and thoughts.



Here is what I currently own/have built for comparison sake:

Dengfu R12 - Just finished building this past weekend. Currently conducting test drives :)
Allez Sprint - Fully built with Winspace Hyper 65 rim brake wheels.
Yoeleo R6 - Fully built with Yoeleo SAT C50 wheels.
Winspace T1500 Disc - Awaiting build, with Hyper 65 wheels and Integrated Handlebars.
VeloBuild 177 - Just arrived today!! Will share my first impressions soon.

Ordering Process: Their customer support is decent and always reply to emails with 24 hours. They also answered every question I had from specs, to various options, and pricing.

Main criticisms -  I requested the 400mm/120mm integrated bars. They told me it was in stock. Two weeks later AFTER I made the purchase they said it was not stock, and had to go with the 400mm/110mm cars. This was quite frustrating because since I have a professional bike fit, my overall is very dialed in and I can immediately tell the 10mm difference. Also I would have loved to a rubber seatpost cover included.

Already I think I've been rambling for too long. The video explains everything much clearer. Im happy to answer any questions thanks!

December 13, 2021, 09:09:52 AM
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Re: My Dengfu R12 - First Impressions and Video For some reason...the forum can't/won't load my YouTube URL. My apologies if this is against the rules.
Here is the title of the video: I May Have A Problem - Dengfu R12 First Look

A couple of other thoughts:
1. This was my first time building up a hydraulic disc brake frameset. It absolutely was AWFUL and thankfully all the learning lessons means that I could probably build my next disc bike in a single day....rather than over four days  :o

2. What took the longest during the process was undoubtably routing the cables and bleeding the brakes. And that's including using the Park Took internal cable routing guide tools as well as a legitimate brake bleed kit. While routing from the calipers to the lever is easier...next time I'd rather start from the levers. I initially had some brake oil leak from the levers so I'd rather have that setup properly first.

3. Having now built 3 bikes in the span of just over one year, I've learned that you really have to take your time. Watch as many YouTube tutorials as you can and don't skip or fast forward like I did haha. I originally overlooked the "burping" of the levers by tilting the bike up/down at 45 degree angles.

I'll upload a couple of finished photos later today.

December 13, 2021, 11:11:23 AM
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Re: My Dengfu R12 - First Impressions and Video
For some reason...the forum can't/won't load my YouTube URL. My apologies if this is against the rules.
Here is the title of the video: I May Have A Problem - Dengfu R12 First Look

A couple of other thoughts:
1. This was my first time building up a hydraulic disc brake frameset. It absolutely was AWFUL and thankfully all the learning lessons means that I could probably build my next disc bike in a single day....rather than over four days  :o

2. What took the longest during the process was undoubtably routing the cables and bleeding the brakes. And that's including using the Park Took internal cable routing guide tools as well as a legitimate brake bleed kit. While routing from the calipers to the lever is easier...next time I'd rather start from the levers. I initially had some brake oil leak from the levers so I'd rather have that setup properly first.

3. Having now built 3 bikes in the span of just over one year, I've learned that you really have to take your time. Watch as many YouTube tutorials as you can and don't skip or fast forward like I did haha. I originally overlooked the "burping" of the levers by tilting the bike up/down at 45 degree angles.

I'll upload a couple of finished photos later today.

Thanks for sharing your videos! I think I might have watched your PRO Stealth review awhile back before pulling the trigger on a practically new PRO Stealth carbon on EBAY for $100.

Definitely a learning curve with any bike build, but Chinese open mould frames are super special. I've also built up 3 separate frames since COVID, but I've rebuilt my Chinese frame at least three times, not including cable and hose changes which practically require a entire rebuild. Does get easier each time. The problem with disc brakes is that the routing issues make the brake bleeding much more complicated. What you think may be a bleeding problem is just a hose that's pinched somewhere because of all the 90 degree bends and choke points from the levers through the headt tube.

December 13, 2021, 01:36:24 PM
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Re: My Dengfu R12 - First Impressions and Video
The problem with disc brakes is that the routing issues make the brake bleeding much more complicated. What you think may be a bleeding problem is just a hose that's pinched somewhere because of all the 90 degree bends and choke points from the levers through the headt tube.

Thanks for supporting my videos! Much appreciated.

Yeah this was my first open mold build. I wasted A LOT of mineral oil trying to bleed the brakes of bubbles. In theory the process is straight forward but can easily become a literal mess if not handled properly.

To be fair...I was totally rushing to build the bike over this past weekend because the weather forecast for Chicago had a three-day window of 45F+ degrees (7+ Celsius) in the coming days, before the cold is permanently here to stay. This week will probably be my final chance to ride outdoors comfortably until the Spring :(

December 13, 2021, 02:15:41 PM
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Re: My Dengfu R12 - First Impressions and Video And here is the final build.

The decals/logo are my own design and I painted the frame at home myself: 3 coats of Dupi-Color Special Effex metallic paint and 3 coats of Spray Max 2K clearcoat. Wanted a little sparkle and protection while maintaining the "raw carbon" showing through.

The Hyper 65 wheels are intended for my Winspace T1500, but these will do until my other wheels arrive.

7.8kg without the PowerTap P2 pedals

December 15, 2021, 08:50:01 AM
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Re: My Dengfu R12 - First Impressions and Video The video on painting my Dengfu R12 is live. By no means was my technique professional, but I'm happy with the results of the paint and decals.

YouTube Title: Spray Paint A Bike At Home Plus Custom Decals - Dengfu R12


December 17, 2021, 11:40:21 AM
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Re: Velobuild VB-R-177 Currently building up this week. Chameleon purple and blue.


December 20, 2021, 09:45:22 AM
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