This carbon fiber time trial frameset offers excellent stiffness and speed at a competitive price point, though it requires careful assembly and potential component upgrades due to some quality control and design limitations.
Pros
- Excellent stiffness and speed performance with users reporting personal records
- Good value compared to high-end brands
- Well-packaged with generally quick shipping and responsive customer service
- Includes three carbon bottle cages and matching painted components
Cons
- Stock stem prone to cracking or slipping even when properly torqued
- Stock aerobar extensions are short, flat, and lack side support
- Limited internal storage with no integrated bento box
- Quality control issues including missing parts and poor finishing
Key Facts
- T47 threaded bottom bracket with 86.5mm shell width
- Frame weight 1,515g with fork weight 445g
- Disc brake compatible with internal cable routing
Reviews & Ratings
The Velobuild VB-TT-023 is a Chinese carbon fiber time trial/triathlon frameset with a T47 bottom bracket (86.5mm shell width) and disc brake compatibility. It is often compared to the Trek Speed Concept in geometry. The frame is praised for being stiff, fast, and offering good value. The stock cockpit includes a basebar, stem, and aerobar extensions (described as a copy of Vision TFE), with adjustable stack via included spacers (5mm, 10mm, 20mm). Builds typically weigh around 20-21 lbs (9-9.5 kg). Common builds use SRAM AXS groupsets with wireless blips and hydraulic brakes like RideRever Triva. Users note the frame is well-packaged and shipping is often quick (e.g., 3-4 weeks to US/UK). However, the stock stem and cockpit have been sources of issues, leading many to upgrade to aftermarket options like TriRig Alpha One or Winow extensions.
AI Summary
Pros
- Good value for money, offering performance comparable to high-end brands at a lower cost.
- Frame is stiff and fast, with users reporting personal records and high average speeds.
- Well-packaged with quick shipping and good customer service from Chris at Velobuild.
- Good adjustability in the cockpit with multiple spacer options and modular design.
- Compatible with aftermarket cockpits and components, allowing for customization.
Cons
- Stock stem is prone to cracking or slipping, even when torqued to spec, causing safety concerns.
- Stock aerobar extensions are short, flat (0-degree), and lack side support, leading many to upgrade.
- Limited internal storage; no integrated bento box (though rivets can be added on request).
- Quality control issues: missing parts, poorly finished fork steerers, incorrect saddle clamps.
- Cable routing for Di2 is challenging due to tight spaces and lack of junction box placement.
The reviewer unboxes and examines a VeloBuild TT frame set, which they refer to as the 'VB tt23' and a collaboration project labeled 'cine concept X Val build'. They express excitement about the frame's design, paint job, and features. They note it is their first time building a TT bike and mention the frame's chunky, modern, 'RoboCop' aesthetic. They highlight the included components like carbon bottle cages, handlebars, and a painted seatpost. They are pleased to find a threaded T47 bottom bracket and note the clean brake mounts. They weigh the frame, fork, and handlebars, providing the recorded weights.
AI Summary
Pros
- The reviewer is 'very happy' and 'excited' about the frame.
- They love the custom 'disco' paint job and note the seatpost and stem are also painted to match for a 'nice solid unibody design'.
- They are 'happy about' the inclusion of three carbon bottle cages.
- They call the handlebars 'very nice full carbon TT bars'.
- They are 'very happy to see a threaded bottom bracket' and are 'pretty sure that it is also a t47 standard'.
- They describe the frame as 'one badass looking frame' and 'looks like RoboCop could be riding this'.
- They note the brake mounts are 'nicely faced' and 'super clean no scratches'.
- They state the frame weight of 1,515g is 'great for a frame that's this chunky'.
- They state the fork weight of 445g is 'quite okay'.
- They mention a positive history with VeloBuild, having purchased several frames from them in the past and being 'surprised and impressed by the low prices'.
Cons
- The reviewer mentions a past VeloBuild frame was damaged in a crash after 3-4 months and 'went straight into the bin', but this is not a critique of the current frame.
- They note building a TT bike will be a first for them with 'quite some surprises and learnings along the way', implying potential complexity, not a flaw in the frame.
Where to Buy
Velobuild VB-TT-023 New T47 Carbon Fiber Time Trial Frame Set Disc Integrated Cables Carbon TT Frame
Specifications
Attributes
Included Components
Questions about VeloBuild VB-TT-023 Carbon Fiber Time Trial Frame Set T47
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