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 Most makers do not publish it, so I assume 10 mm and add 6 mm to the band beside every answer.
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 hands sit than your saddle. On a riser bar I count the bar's rise, so the drop is that much less than it is to the clamp.
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
Pinarello Dogma GR
Gravel · 9 sizes
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This is the bike I ride
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- Bike
- Pinarello Dogma GR · Gravel · 9 sizes · integrated cockpit
- Geometry
- pinarello.com, fetched 20 Oct 2026, re-checked, no differences
- Cockpit
- MOST Talon Ultra Fast GR, the maker's spec
- Solved with
- cover 10 mm (assumed), max spacers 40 mm (assumed), stem clamp centre 20 mm (assumed), so every verdict carries ±10 mm at the bar
- Sheet
- 22 October 2026 · 879 bikes, 79 makes, 4,979 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)not published |
|---|---|---|---|---|---|---|---|---|
| 43 | 536 | 355 | 70 | 74.4 | 115 | 425 | 996 | |
| 46.5 | 543.6 | 361.1 | 70.5 | 74.4 | 121 | 425 | 1000 | |
| 50 | 552.1 | 366.9 | 70.5 | 74 | 130 | 425 | 1008.8 | |
| 51.5 | 560.6 | 372.6 | 71 | 73.7 | 137 | 425 | 1012.6 | |
| 53 | 572.9 | 379.1 | 71 | 73.7 | 150 | 425 | 1023.4 | |
| 54.5 | 587.1 | 384 | 71 | 73.4 | 165 | 425 | 1033.1 | |
| 56 | 603.3 | 388.6 | 71.5 | 73 | 180 | 427 | 1037.9 | |
| 57.5 | 624.3 | 392.7 | 72 | 73 | 200 | 427 | 1043.6 | |
| 59.5 | 653 | 398 | 72.5 | 72.4 | 228 | 427 | 1052.5 |
The table runs on to the right: 6 more columns after Reach. Scroll it sideways to read them.
The 53 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
What each size is solved on unless you choose another bar on the sheet.Pinarello MOST Talon Ultra Fast GRStockstem -8 · reach 80 · drop 125 · lengths 80-120 · widths 420-480
Frame facts
not read off the maker's page yet: pinarello.com- Tyre clearance
- not recorded yet
- Bottom bracket
- not recorded yet
- Axles and brakes
- not recorded yet
- UDH
- not recorded yet
- Seatpost
- not recorded yet
- Frame weight
- not recorded yet
In the maker's words
Kept whole, as I read it off pinarello.com.The Dogma GR Dura Ace Di2 build ships with the integrated handlebar "TALON ULTRA FAST GR".
Cockpit and seatpost, in the maker's words · 100 words
The Dogma GR Dura Ace Di2 build ships with the integrated handlebar "TALON ULTRA FAST GR". MOST Talon Ultra Fast GR (https://pinarello.com/global/en/accessories/components/handlebars/talon/talon-ultra-fast-gr): stem angle -8 deg; stem lengths 80/90/100/110/120 mm; bar reach 80 mm; drop 125 mm; flare 7 deg; sold as stem/width "80/420 - 80/480 - 90/420 - 90/440 - 90/460 - 90/480 - 100/420 - 100/440 - 100/460 - 100/480 - 110/460 - 110/480 - 120/460 - 120/480 (handlebar width measured outside-to-outside at the drops)", i.e. drop widths 420/440/460/480 mm outside to outside. The page does not say which width and stem length each frame size ships with.
OFFICIAL SOURCE: Pinarello product page DOGMA GR SHIMANO DURA ACE DI2 2x12 (https://pinarello.com/global/en/bikes/gravel/competition/dogma-gr/dogma-gr-dura-ace-di2-2x12). Source: html table (official Pinarello global English product page "DOGMA GR SHIMANO DURA ACE DI2 2x12", section "Geometries": the table in the page markup; fetched 2026-10-20
How I read the maker's table
The table has NO size column: Pinarello names a frame size by its seat tube centre-to-centre length in cm (the Dogma F page's weight line reads "Weight in size 53"; the CC column prints 530 on that row), so size_label is the CC column written in cm (CC 430 -> "43", 465 -> "46.5"); nothing else is derived. Column mapping: CE (seat tube centre to end) -> seat_tube_length; CC (centre to centre) -> size label; L -> top_tube_effective; A -> seat_tube_angle; B -> head_tube_angle; P -> chainstay; T -> head_tube_length; D -> bb_drop; R (fork rake) -> fork_offset; G (fork height, axle to crown) not in the schema; REACH -> reach; STACK -> stack. The legend beside the table reads "CE: SEAT TUBE CENTER - END, CC: SEAT TUBE CENTER - CENTER, L: TOP TUBE CENTER - CENTER, A[deg]: SEAT TUBE ANGLE, B[deg]: HEADTUBE ANGLE, P: CHAINSTAY, T: HEADTUBE, D: BB DROP, R: FORK RAKE, G: FORK HEIGHT, REACH, STACK". TOP TUBE: the drawing beside the table draws L horizontal at head tube top height from the seat tube line to the head tube line, so L is recorded as top_tube_effective. STACK DATUM: the drawing (read only for its letters and datums, not stored) takes STACK from the bottom bracket centre up to a horizontal line at the top of the head tube under the stem, and REACH to the same point; no words say whether a headset cover is included, so stack_datum is null. Not published, so null: trail, standover, stock stem and bar per size. Model year is not printed on the page (null). This table has more columns than the road tables: CF (printed "CF" where the legend says "CE: SEAT TUBE CENTER - END"; recorded as seat_tube_length), I, F, WB. The legend beside the table is the road legend and does not name I, F or WB. The drawing letters WB (axle to axle, horizontal) and I (drawn horizontal from the top of the seat tube line to the vertical through the BB, beside REACH; it equals CC x cos A on every size; not in the schema). F is neither in the legend nor in the drawing; it is recorded as front_centre because on every size sqrt(P^2 - D^2) + sqrt(F^2 - D^2) gives the printed WB, i.e. F is the BB-to-front-axle distance. On the three largest sizes (56, 57.5, 59.5, where P becomes 427) that sum is 2.1 mm more than the printed WB, while P = 425 reproduces it: the printed WB on those sizes looks drawn with the 425 chainstay of the smaller sizes. Flagged, nothing changed. Stock tyre "VITTORIA TERRENO T30 40" (tyre_width_mm 40).
Source: html table (official Pinarello global English product page "DOGMA GR SHIMANO DURA ACE DI2 2x12", section "Geometries": the table in the page markup; fetched 2026-10-20, HTTP 200)