Chinese Carbon MTB Forums
News:
Happy Holidays!
See likes
See likes given/taken
| Post info | No. of Likes |
|---|---|
|
Re: VeloBuild VB-TT-023
I am new to building bikes, and I am looking for a BB for the VB TT 023. The measurements on the website says 86.5. I am doing a sram build and can only find a 85.5mm T47 Sram dub BB. Can I go with that? Thank you! December 20, 2024, 09:05:24 AM |
1 |
Re: VeloBuild VB-TT-023
Can someone advice on the bottom brackets they used? Almost all parts for my build are ready except the bottom bracket because I cannot find a SRAM DUB bb for the TT-023 frame shell width of 86.5mm. I am running a SRAM Force AXS 1x setup with 165mm DUB Force D2 crankset and Red 1x 50T. Will the SRAM DUB Road T47 bb do the job or I need the Road Wide version? Thanks. NikkoPh is using t47 dub bottom bracket https://chinertown.com/index.php/topic,5156.msg64449.html#msg64449 The guy in this video used the Sram Dub BSA 68/73 BB, he wrote it in the comments "youtube.com/watch?v=PtYLbQ-97fM" Could someone please post the measurement between the two basebar towers? Center screw to center screw.I asked chris from VB. Basebar 400 / 420 / 440mm -> 81,5 / 101,50 / 120,50mm February 20, 2025, 04:02:59 AM |
1 |
Re: VeloBuild VB-TT-023
I’m running the RideRever Trivia’s and 2 pairs of blips. Works a-ok for me, no complaints really. Don’t have a huge amount of time outdoors logged on them but they seem to do their job. Will be doing Lanzarote IM on it in 6 weeks time so they will really get put through their paces their. April 05, 2025, 02:52:05 PM |
1 |
Re: VeloBuild VB-TT-023
Can you post photos of how you routed the hydraulic brake cables? Sadly not, as you wouldn't see anything. Its entirely internally routed. Through the basebar and than through the back of the hole in the clamping area and through the stem April 06, 2025, 05:07:17 AM |
1 |
Re: VeloBuild VB-TT-023
Can you post photos of how you routed the hydraulic brake cables? My set of riderever triva brakes is still on its way from Japan and I am currently using cable-actuated brakes. And it is not a good experience so far. I have changed the cables twice and the braking power is still not satisfactory. I have routed the brake cables through the top holes of the stem and brought them inside the stock base bar holes on the lower side. It looks ugly and not so aerodynamic. These cable-actuated cables seem to be so hard to bend and go through the stem as hidden/internal routed cables. I am running 1x sram force with wireless blips so the only cables I have are the brake cables. This is two brakes mecanical cables and one rear derauler mecanical cable. April 06, 2025, 11:02:27 AM |
1 |
|
Re: VeloBuild VB-TT-023
My tt-023 is built and road ready. If anyone would like close-ups of any bits let me know. The brake lines feed through the bars straight into the headset and through the frame to come out near where the calliper are mounted. The cables for the gears if not using remote shifters are a little tricky but run down the bars through the arm pads, come out the back under where the elbows would sit then route into the headset through the 2 eye holes. I have electronic remote shifters so didn't run these. I had my LBS ran the lines as it is a very tight fit (brake lines only, I didn't have the tools). From what they said you need to tighten the levers in first then pull the cables through to the callipers, mounting the front end as you go. The reverse of how it would normally be done. Also the headset top tightens front to back. Otherwise the bull horns don't sit tight enough to hold riders weight. I have only done 40km on the bike, before having to take time off due to an unrelated injury. Compared to my other TT bike it feels similar maybe a bit more twitchy, but I had high cross winds and the 80 front wheel was just a big sail pushing me all over the place. About to fit a 50 front, hopefully solves some of the twitchy riding. April 08, 2025, 11:03:48 PM |
1 |
|
Re: VeloBuild VB-TT-023
I read this whole thread as I was deciding on my new TT bike last winter, and it convinced me to order. My previous TT bike was a used 2011 Garneau Gennix T1 Large, and I was looking to be more comfortable for my first full Ironman in Ottawa this past summer - more adjustability in the front end and bigger tire clearance. I am 5’8” (173cm), 155-160lb (70-72kg), and went with a large frame for more reach/stack since that fits me best. I did get a bike fit on the Garneau, (and the Velobuild once it arrived), and the fitter agreed that a large frame is right for me. The order process was great, got them to add the 2 bolt holes on the top tube for a bento box (though I have not used them yet). Went for a black/white paint scheme and added my name in the paint at the seatpost. This was the 2nd frame I’d built from scratch (first one was a custom drop bar titanium mountain bike from Waltly Ti), but I’ve been doing my own maintenance on my bikes for a while. The build was very straightforward, with the usual difficulties of fully internal cable routing. I did crack the stem as I was tightening to the recommended torque (5Nm), and Chris from Velobuild sent out a new one – though I don’t trust it anymore, so I’m looking for other options now that I’m done racing for the year. Parts List: Frame: Velobuild TT-023 Large TT Bars: Included with frame, but I added a custom 3D printed extension off the back that replaces the (too) soft yellow foam over the screws and makes a closed back for the elbow. Also adds a bit more length to the extensions which I found I needed. Custom 3D printed SRAM wireless blip holders. Textured heat-shrink for the grips, as I’ve seen in a few posts in this thread Stack Angle: Custom machined aluminum block for additional 9 degree angle Base Plate/Bridge: Custom machined aluminum bridge for a bit more reach and a BTA bottle mount Arm pads: CeeGees 10mm TriRig Scoops Ultimate SL for full padding along the forearms Garmin Mount: Custom 3D Printed mount that fits just between the bars at the front. Very large platform zip-tied to the bars, covering most of the area between them. Brakes: RideRever Triva Rotors: Shimano Ultegra Shifters: SRAM Wireless Blips Bottom Bracket: Token Steel Bearing T47 Threaded BB 47mm for 24mm cranks Crankset: 160mm XCadey 24mm spindle Power Meter Spider: XCadey XPower-S Gen 2 110BCD-4S Pedals: Shimano 105 Chainring: 1x 54T Pass Quest Chain: SRAM Force with Silca wax Cassette: SRAM Apex XPLR 12 speed 11-44T Derailleur: SRAM Force D2 12 speed XPLR Wheelset: Yoeleo SAT C88 DB PRO NxT SL2 Tires: Continental Aero 111 29mm on front, and GP5000 30mm on rear Disc Cover: ABS Sheet with electrical tape and zip ties Aero Bottle: Canyon 650mL Fuel bottle, Fidlock magnetic mount Toolbox: Custom 3D Printed box fitting the aero bottle and the frame. Inside I fit my pump, tupe, plugs, extra tubeless valve parts, multi-tool, hex keys, tire levers. Take the top cover off, and pull out an insert with slots for all the individual tools. Saddle: Ergon SR Tri Front (not settled on this yet, might tri that ONIRII 3D printed TT saddle) BTS Bottle Holder: For me, the 2nd seatpost bottle mount hole is hidden inside the frame, so I spent some time to come up with a much better solution. Custom design – yes, it fits within the 30x30cm box rule, but it is a little heavy (~700g, but I’m working on improving that). 2x1L Bottles face forwards so there is much less risk of ejecting. They are also quicker to remove since you don’t need elastics on them to keep them in, and they are much easier to reach. I haven’t done aero testing, but it definitely looks fast – the goal was to have then follow the curve of my back. The pictures don’t show it, but the bottle also angle outwards for easier access since you reach around the side of your body, not directly over your back (and maybe helps with aero as well) Ride Review: I haven’t seen anyone else put an XLPR groupset on a 1x TT bike – this forum seems to be the place for unconventional builds though - I think it works great! I am not too picky about cadence, generally average about 95rpm in races. This bike is quick, it just wants to go fast (2nd fastest bike split at IM Ottawa this year). Liquid nutrition for my races, carrying up to 3.65L on the bike and grabbing water from aid stations (possibly more with a different front hydration setup). Much more comfortable than my previous TT bike as well, but there are many factors that go into that (tires, fit, saddle, etc.). On windy days, the deep front wheel gets blown around a bit, but that’s entirely expected. The headset bearings seem to have rusted after my IM – sitting in T2 all day with sticky carb drink maybe did it. I’ll be replacing with higher quality stainless steel bearings when I replace the stem. If anyone is interested in the custom parts I’ve made, let me know – I’ve seen a few people in other posts asking about angled spacers (I have been considering starting an online store)! I’m happy to share the files for the 3D printed parts, but they are in constant revision, so I’d have to lock down a design. November 08, 2025, 02:18:51 PM |
1 |