Stack and reach
How high and how far forward the top of the head tube is, from the bottom bracket. They are the two numbers that decide whether a frame can be set up like yours.
BB, or bottom bracket
The axle your cranks turn on, in the middle of the frame. Every number on this site is measured from it, because it is the one point that sits in the same place on every bike.
Headset cover
The little cap on top of the head tube, under your spacers. Most makers do not publish it, so I assume 15 mm and add 6 mm to the band, which on its own is enough to hold an answer at "probably" rather than "fits".
Stem clamp, and its centre
The collar on the steerer that your stem bolts to. I need the middle of it. Where a maker gives only the height, I assume halfway up and say so on the answer.
Steerer
The tube coming up out of the fork. The cover, the spacers and the stem all sit on it, and it is the thing a mechanic cuts to length.
Bar reach
How far forward the hoods sit from the middle of the bar. Two bars on the same stem can put your hands 20 mm apart, which is why I ask.
Setback
How far your saddle sits behind the bottom bracket.
Drop
How much lower your bar is than your saddle.
Rails, and the rail centre
The two rods under your saddle, and the middle of the straight part of them. That midpoint is the point I use, because it is the one you can find with a tape.
The band
How far out I could be, in millimetres, and why. It is a straight sum of everything I had to assume rather than a clever average, so it errs wide on purpose.
wb, stand, trail
Wheelbase, standover and trail: how long the bike is, how high the top tube is where you straddle it, and how steady the steering feels. I show them against your bike, and I leave them out when the maker does not publish them.
est.
Estimated: a number I worked out rather than read off the maker's table. Anything marked this way can move if the maker publishes the real one.
Close Escape closes it. The measuring guide has the pictures. Open the measuring guide
Voicevelo G Major
Gravel · 4 sizes
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This is the bike I ride
No account is needed to read the table. Report a wrong number · Correct this bike
- Bike
- Voicevelo G Major · Gravel · 4 sizes
- Geometry
- voicevelo.com, fetched 29 Aug 2026, re-checked, 1 corrected
- 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) | Standover (mm) |
|---|---|---|---|---|---|---|---|---|
| 48 (S/48) | 533 | 375 | 70 | 73 | 102 | 420 | 1005 | 723 |
| 51 (M/51) | 548 | 385 | 71 | 73 | 114 | 420 | 1011 | 748 |
| 54 (L/54) | 565 | 395 | 71 | 73 | 130 | 420 | 1022 | 775 |
| 57 (XL/57) | 590 | 405 | 72 | 73 | 154 | 420 | 1035 | 803 |
The table runs on to the right: 6 more columns after Reach. Scroll it sideways to read them.
The 54 (L/54) 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 voicevelo.com.NOT an integrated one-piece cockpit: the frameset ships with the separate VFV ADV carbon stem (maker spec sheet image gmajor-08.jpg, 'Component Compatibility': 'Stem: VFV ADV, IN-Route System (70, 80, 90, 100, 110)' mm) and the rider supplies a handlebar; cables can run through a compatible bar into the stem or enter the frame from under the stem ('IN-Route Internal' frame routing).
Cockpit and seatpost, in the maker's words · 304 words
NOT an integrated one-piece cockpit: the frameset ships with the separate VFV ADV carbon stem (maker spec sheet image gmajor-08.jpg, 'Component Compatibility': 'Stem: VFV ADV, IN-Route System (70, 80, 90, 100, 110)' mm) and the rider supplies a handlebar; cables can run through a compatible bar into the stem or enter the frame from under the stem ('IN-Route Internal' frame routing). Stem angle, stem clamp/stack height and bar clamp diameter NOT published on voicevelo.com (no ADV stem product page in the VFV Components collection). Maker sizing chart (image gmajor-07.jpg) gives a stem RANGE per size, not a single stock length: Road fit S/48 rider 162-169 cm stem 90-100 mm; M/51 169-176 cm 100-110; L/54 176-183 cm 110-120; XL/57 183-190 cm 120-130. 'Advanture fit' (sic) S/48 158-165 cm 60-70; M/51 165-172 cm 70-80; L/54 172-179 cm 80-90; XL/57 179-186 cm 90-100 (note the road-fit 120/130 and adventure-fit 60 fall outside the 70-110 ADV stem list). Panda Podium (distributor) sells the frameset with a stem-length choice of 70/80/90/100/110 mm. Headset: 'VFV Integrated IS52/IS52 Internal Drop-In', bearings '1.5 inch IS52 Upper and Lower'; headset cap is part 8 in the maker's parts diagram; spacer heights and maximum spacer stack NOT published. Seatpost: 27.2 mm round; maker lists 'VFV Deep-V Seatpost 27.2/400mm x 5mm Offset' (Deep-V page https://voicevelo.com/products/deep-v-seatpost: length 400 mm, 27.2 or 30.9 mm, offset 5 mm, 160 g +/-5 g for 27.2, titanium bolts standard, USD 140 sold separately); Panda Podium says the frameset 'Includes VFV Deep-V seatpost' and the 'integrated carbon stem' - the maker page itself lists both under 'Component Compatibility' without saying 'included'. Seat clamp: part 6 'Clamp' with M5x15 bolt at 6 Nm (parts diagram gmajor-06.jpg). Fork: 12x100 thru axle, flat mount, rake 48.5 mm, axle-to-crown 399 mm on the spec sheet vs 'O - Fork length 400' in the geometry table.
GEOMETRY SOURCE: maker's own page https://voicevelo.com/products/g-major (UEESHOP storefront, English. Source: image_table (geometry published only as an image embedded in the product page
How I read the maker's table
there is also a Simplified Chinese language toggle) embeds the table as an image with a labelled diagram: A Seat tube, B Stack, C Reach, D Effective top tube, E Head tube length, F Head angle, G Standover, H BB drop, J Effective seat tube angle, K Chainstay, L Front center, M Wheelbase, N Fork offset, O Fork length; header 'All are in millieters unless otherwise noted' (sic). Digits verified on a 2x upscale crop of the table. STACK/REACH DATUM: diagram shows B (stack) vertical and C (reach) horizontal from the bottom bracket centre to the centre of the top of the head tube - conventional frame stack/reach, no headset cap included. SIZE NAMING: geometry table uses nominal cm sizes 48/51/54/57; the sizing chart and Panda Podium map these to S/48, M/51, L/54, XL/57; the real seat tube length (A) is 461/491/521/551 mm, i.e. the nominal size is not the seat tube length. STANDOVER: diagram measures G vertically from the ground to the top tube near mid-length; wheel/tyre size assumed for it is not stated. Head angle published to whole degrees (70/71/71/72). Trail is NOT published (left null). MODEL YEAR: undated on the maker's page; product gallery images sit in a 2023-10-24 CDN upload path, the description/geometry images in a 2026-01-04 and 2026-01-05 path (page refreshed Jan 2026); Panda Podium listing images date from Dec 2023/Jan 2024, so this is the G Major generation on sale from late 2023 through 2026-08-29 - model_year left null rather than guessed. OTHER MAKER FACTS: carbon frame 790 g +/-2% (size 51, VG1 paint, no hardware); T47 outboard-bearing threaded BB; 12x142 rear thru axle (M12x177, 9-13.5 Nm), 12x100 front (M12x122); UDH hanger; flat mount, rotors 140/160 with adapters; tyres min 700x36c, optimal 700x40-45c, max 700x47c or 650b x 2.1; 700c/650b; 3 bottle mounts, top tube mounts, fender compatible, 14 accessory mounting holes (top tube 3 up / 4 down, down tube 3 up / 2 down, seat tube 2); 1x or 2x, max 54/42 chainrings; SRAM and Campagnolo mechanical 2x listed as 'No (requires continuous housing for FD)'. Paint options VG1-VG7 (the only variant selector on the maker page; frame size is not a web-order option - USD 2,099). CROSS-REFERENCE ONLY (no geometry taken from it): Panda Podium Store API product 6869 'Voicevelo G Major Disc Brake Gravel Frameset', sizes S/48 M/51 L/54 XL/57, stem 70-110, same 790 g claim (quoted +/-3% there).
Source: image_table (geometry published only as an image embedded in the product page: https://ueeshop.ly200-cdn.com/u_file/UPAS/UPAS584/2601/05/photo/geometry.jpg, 1200x1300 JPEG; numbers read from it by the collector, image not stored)
