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 Most makers do not publish it, so I assume 10 mm and add 6 mm to the band beside every answer.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
ICAN A27
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
- ICAN A27 · Road · 5 sizes
- Geometry
- icanbikes.com, fetched 22 Oct 2026, read off the maker's chart, re-checked, no differences
- Seat angle convention
- Calculated from ICAN's table
- Cockpit
- Generic stem and bar, assumed
- 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) |
|---|---|---|---|---|---|---|---|---|
| XS | 507.6 | 359.7 | 70.2 | 75.5 | 105 | 410 | 973.9 | 711.5 |
| S | 526.5 | 370 | 71.5 | 74.5 | 120 | 410 | 979 | 730.4 |
| M | 548.8 | 377.8 | 72 | 74.5 | 140 | 410 | 984.2 | 750.8 |
| L | 571.5 | 385 | 72.5 | 73.8 | 162 | 410 | 993.8 | 777.9 |
| XL | 595.3 | 393.5 | 73 | 73 | 185 | 410 | 1004.7 | 804.9 |
The table runs on to the right: 6 more columns after Reach. Scroll it sideways to read them.
The M 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.
Frame facts
read off the maker's page: icanbikes.com- Tyre clearance
- 30 mm
- Bottom bracket
- not published
- Axles and brakes
- 12x142 rear, flat mount
- UDH
- not published
- Seatpost
- 27.2 mm round
- Frame weight
- not published
In the maker's words
Kept whole, as I read it off icanbikes.com.Sold as a frame; headset FSA NO.55R 1.5 in /CR/STD (internal routing through the headset, "All inner cable").
Cockpit and seatpost, in the maker's words · 26 words
Sold as a frame; headset FSA NO.55R 1.5 in /CR/STD (internal routing through the headset, "All inner cable"). No bar, stem or per-size stem length printed.
SOURCE: icanbikes.com is ICAN's second English site (WordPress, "Products-list" pages), beside the Shopify store icancycling.com that the other ICAN files cite. Source: image_table (maker's own site icanbikes.com; geometry published only as the image
How I read the maker's table
both carry the same A9, A23 and TRA01 frames under the ICAN name, and the frame below is on icanbikes.com only (not in icancycling.com's product sitemap, fetched 22 Oct 2026). The page "Carbon Disc Frame | Carbon Disc Road Frameset | ICAN A27" has a spec table and one geometry image (uploaded Jan 2024; no model year printed). Rows as printed, XS/S/M/L/XL: A "top tube horizontal length" (top_tube_effective); A1 "top tube length" 477.6/499.8/513/532.4/555.8 (along the tube, not in the schema); B head tube length; C seat tube angle; D head tube angle; E BB drop; F chain stay; G wheel base; H "BB to front wheel" (front_centre); I fork length 376 every size (not in the schema); J fork rake 50/50/45/45/45; K "seat tube total length"; L REACH; M STACK; N "Span height" (standover). The drawing's notes: "H/T: FSA NO.55 R 1.5 in /CR/STD", "O.L.D.: 142*12mm (E-thru Axle: SHIMANO AX720)", "Max tire: 700*30C (Using 3D imitate tire size 695*32C)", "BB: T47 (BB width, 76.75mm)", "S/T I.D.: 27.2mm"; wheels drawn at 692 mm. The page's spec table says "Bottom Bracket BB86" where the drawing says T47 (maker against maker; bottom_bracket left out of frame_facts), "Weight 1145g" (no size, not said to be the frame alone; left out), disc "Front 160mm, rear 140mm Flat mount", sizes XS/S/M/L/XL. Bike Insights has no A27.
Source: image_table (maker's own site icanbikes.com; geometry published only as the image https://www.icanbikes.com/wp-content/uploads/2024/01/Full-Carbon-Disc-Frame-A27.png, 1187x1407 px, a CAD drawing over a lettered table; read by eye, image NOT stored)
