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 Most makers do not publish it, so I assume 15 mm and add 6 mm to the band, which on its own is enough to hold an answer at "probably" rather than "fits".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
Carbonda CFR-1136
Endurance road · 5 sizes
Sign in and add the bike you ride, and this table will say what each size needs for your position.
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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
- Carbonda CFR-1136 · Endurance road · 5 sizes
- Geometry
- carbonda.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) | Standover (mm) |
|---|---|---|---|---|---|---|---|---|
| XS / 410 | 521.7 | 365 | 71.2 | 74.2 | 120 | 415 | 975.2 | 725.4 |
| S / 440 | 542 | 370 | 71.6 | 73.2 | 140 | 415 | 983.3 | 750.9 |
| M / 470 | 562.6 | 375 | 72 | 73.2 | 161 | 415 | 991.8 | 780.5 |
| L / 500 | 584 | 380 | 72.4 | 72.8 | 183 | 415 | 1000 | 806.8 |
| XL / 530 | 603.5 | 385.7 | 72.8 | 72.2 | 202 | 415 | 1007.6 | 832.5 |
The table runs on to the right: 6 more columns after Reach. Scroll it sideways to read them.
The M / 470 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 carbonda.com.FRAMESET ONLY - Carbonda sells the bare frame + fork and names no stock handlebar, stem or seatpost; the product page's spec table lists Model No FM1136, headset "1-1/2" * 1-1/2" ACR", BB "BB86/BSA-68" (the bullet list and the size drawings say BSA; the M drawing is labelled BSA with a 39.3 mm shell bore), flat mount disc, max tyre 700x32 mm, frame weight (M) 950 +/- 50 g, fork 480 +/- 15 g.
Cockpit and seatpost, in the maker's words · 219 words
FRAMESET ONLY - Carbonda sells the bare frame + fork and names no stock handlebar, stem or seatpost; the product page's spec table lists Model No FM1136, headset "1-1/2" * 1-1/2" ACR", BB "BB86/BSA-68" (the bullet list and the size drawings say BSA; the M drawing is labelled BSA with a 39.3 mm shell bore), flat mount disc, max tyre 700x32 mm, frame weight (M) 950 +/- 50 g, fork 480 +/- 15 g. Cable routing: "Integrated cabling" / "compatible hidden cable routing" through the ACR headset (both bearing seats 52.1 mm on the size drawings, head tube outer 57 mm), so any ACR-style one-piece bar or ACR stem + split-spacer set fits; no bar widths, stem lengths, stem angle, headset cover height or maximum spacer stack are published. Fork: axle-to-crown 372 mm, offset 45 mm (all sizes, from the geometry table). Seatpost: round 27.2 mm (the size drawings dimension the seat tube bore as 27.2 +0.15/-0 mm) held by an internal wedge (assembly drawing item 14, part FB-CL-205/200/206/207 "CFR-1136 XS/S/(M/L)/XL wedge" with an M6x25 bolt and a stainless washer); no seatpost offset or length options are stated. Derailleur hanger: Carbonda's own CFR-606 thru-axle hanger (inner + outer alloy parts on the assembly drawing) - NOT UDH, despite the page's meta description. Rear spacing 142 mm on the drawings.
STACK / REACH DATUM: the geometry PDF's diagram draws Stack as the vertical and Reach as the horizontal distance from the bottom bracket centre to the centre of the TOP of the head tube (no headset cover included). Source: pdf_table (maker's CFR-1136B-Geometry.pdf, linked from the product page's File download list
How I read the maker's table
the per-size drawings agree (M: stack 562.6, reach 375.1 vs table 375). COLUMN MAPPING from the PDF table: S = seat tube length centre-to-top along the seat tube (M drawing 475.8 +/- 1 mm to the seat tube top), SC = seat tube angle, O = horizontal (effective) top tube length from the seat tube centreline extension to the head tube top, HS = head tube length, HC = head tube angle, F = fork length (372, not in the schema), OT = fork offset, WB = wheelbase, FC = front centre (BB centre to front axle), RC = rear centre / chainstay, G = BB drop, Reach, Stack. SIZE NAMES: XS/410, S/440, M/470, L/500, XL/530 - the number is the nominal seat tube length in mm; the product page says "Sizes: XS/S/M/L/XL" (its meta description's "48/51/54/57/60cm", "700x42c/650Bx47c", "T47-68" and "UDH" are template text that contradicts the page body and the drawings and was ignored). STANDOVER: not a column in the geometry table; the values come from the maker's per-size drawings (CFR-1136B-XS/S/M/L/XL.pdf, same download list), which dimension the vertical from the ground line (tangent to R347 mm wheel circles, i.e. a 700x32c tyre) to the UNDERSIDE of the top tube at a point about a third of the way from the seat tube towards the head tube: XS 725.4, S 750.9, M 780.5, L 806.8, XL 832.5. Treat as an underside-of-tube figure, not a conventional top-of-tube standover. MODEL YEAR: Carbonda does not use model years; the frame drawings are revision B dated 2021-08-18 (M) to 2021-09-13 (L), the geometry and assembly PDFs were plotted 2024-08-22, and the current product page and photos date from 2024-09-10; live 2026-08-29. The page URL says cfr-1136-sl and the drawings say CFR-1136B; the page title and h1 are plain CFR-1136. Trail is not published (null).
Source: pdf_table (maker's CFR-1136B-Geometry.pdf, linked from the product page's File download list: https://carbonda.com/upload/download/CFR-1136B/CFR-1136B-Geometry.pdf)