Velobuild VB-R-218
Aero road · 8 sizes
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- Bike
- Velobuild VB-R-218 · Aero road · 8 sizes · integrated cockpit
- Geometry
- velobuild.com, fetched 29 Aug 2026, re-checked, no differences
- Cockpit
- Generic stem and bar, assumed
- Solved with
- cover 15 mm (assumed), max spacers 40 mm (assumed), stem clamp centre 20 mm (assumed), so every verdict carries ±10 mm at the bar
- Sheet
- 6 September 2026 · 210 bikes, 43 makes, 1,262 sizes in the catalogue
Geometry, every size, from the maker's table
The tinted row is the size drawn beside it. Press a size to draw it.| Size | Stack (mm) | Reach (mm) | Head angle (deg) | Seat angle (deg) | Head tube (mm) | Chainstay (mm) | Wheelbase (mm)not published | Standover (mm)not published |
|---|---|---|---|---|---|---|---|---|
| XXXS-450 | 518 | 365 | 70.5 | 74.4 | 104 | 406 | ||
| XXS-465 | 525 | 372 | 71.4 | 74 | 109 | 406 | ||
| XS-485 | 532 | 378 | 72 | 73.7 | 114 | 406 | ||
| S-500 | 542 | 383 | 72.5 | 73.7 | 123 | 406 | ||
| M-510 | 551 | 385 | 72.8 | 73.4 | 131 | 408 | ||
| L-520 | 562 | 389 | 72.8 | 73.4 | 142 | 408 | ||
| XL-525 | 570 | 391 | 73.2 | 73 | 149.5 | 408 | ||
| XXL-540 | 585 | 396 | 73.7 | 73 | 163 | 408 |
The table runs on to the right: 6 more columns after Reach. Scroll it sideways to read them.
The M-510 drawn to scale from the table, with no build on it. Stack and reach run from the bottom bracket to the top of the head tube; every size is solved from those two. One square is 100 mm.
The maker's cockpit
No stock cockpit I can name, so every size is solved on a generic stem and bar unless you choose one on the sheet.Generic stem and barAssumedNo bar is listed for this frame.
In the maker's words
Kept whole, as I read it off velobuild.com.Frameset includes: Frame, Fork, Seat Post, Seat Post Clamp, Headset, axles and Integrated bar (page wording), full internal cables.
Cockpit and seatpost, in the maker's words · 195 words
Frameset includes: Frame, Fork, Seat Post, Seat Post Clamp, Headset, axles and Integrated bar (page wording), full internal cables. INTEGRATED one-piece bar/stem, sizes written as width/stem in mm: 400/90, 400/100, 400/110, 400/120; 420/90, 420/100, 420/110, 420/120; 440/90, 440/100, 440/110, 440/120 (the description literally prints the tenth entry as 400/100, an evident typo for 440/100; the purchase option list on the same page does include 440/100). Purchase options live on the page at fetch time: Integrated bar size 420/90, 440/90, 440/100, 440/110, 440/120 (the other seven combinations are not offered any more); Frame Size XXS and XS only (product flagged out of stock in the page metadata); Bottom Bracket BSA; Finish Glossy or Matte; 1.5k and UD carbon weave mentioned in the meta description. Bar reach 80 mm, bar drop 125 mm, bar weight 370 g. Stem angle, stem/bar clamp height, spacer heights and maximum spacer stack NOT published. Headset: top 1-1/2 in, down 1-1/2 in (page text). Seat post: proprietary aero seat post included with clamp, 170 g; seat post offset/setback NOT published. No default bar size is stated, so stock_stem_length and stock_bar_width are null. Weights (size M): frame about 1100 g, fork 410 g.
STACK/REACH DATUM: the chart diagram draws K (Stack) as the vertical from the bottom bracket centre to the top of the head tube and J (Reach) as the horizontal from the BB centre line to the same head tube top point, i.e. Source: image_table (geometry chart image embedded in the product description
How I read the maker's table
the usual BB-centre to head-tube-top convention. Column A is BB center to top of seattube (stored as seat_tube_length). Column B is Effective top tube horizontal. Column C BB offset is printed as -72 mm for every size; stored here as bb_drop 72 (positive drop, same convention as the other files). Column G Front center is stored as front_centre. Column I Fork offset is 43 mm for every size. Head tube length for XL is printed 149.5. SIZE NAMING: the chart labels rows XXXS-450, XXS-465, XS-485, S-500, M-510, L-520, XL-525 and XXL-540; the number after the hyphen does NOT equal column A (465, 500, 515, 530, 540, 550, 560, 575) and its meaning is not explained, so labels are kept verbatim. The chart has 8 rows including XXXS-450, while the page text says Size XXS XS S M L XL XXL available (7 sizes) and only XXS and XS are purchasable at fetch time. NOT PUBLISHED (null): wheelbase, standover, trail, stock stem length and bar width. The chart diagram also shows rear dropout spacing 142 (+1.5/-0) mm, front 100 (+1.5/-0) mm and BSA BB 68L. Page facts: 142x12 rear, 12x100 front, flat mount, 160 mm rotors front and rear, max tyre 32 mm, braze-on front derailleur. MODEL YEAR: the page title and description both say 2022 VB-R-218; the chart image path is dated 2024-01 (a later re-upload) and the gallery images 2022-10. Brand writes its own name VeloBuild; product id 345 on the site. Collected via one curl request to the product page with a browser User-Agent (HTTP 200), then three image downloads from the ueeshop CDN with 2 s pauses; no aggregator consulted.
Source: image_table (geometry chart image embedded in the product description: https://ueeshop.ly200-cdn.com/u_file/UPBA/UPBA916/2401/04/photo/218Geometry.jpg, 825x701 JPEG, read by eye from the image; the surrounding description is plain HTML text)
