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Boardman

Boardman: stock cockpit data

9 values missing in 6 of 7 models. Database as of 14 Nov 2026.

I’m Marcel Dobrocký, a bike fitter from Brno in the Czech Republic. On sedimi.bike, riders enter their riding position and the site works out which frames and sizes fit them. To do that for Boardman bikes, I’m missing the stem length or angle and the bar reach.

These are figures you can see on the bike or read off the parts, nothing internal. Where I don’t know them, I use an estimate. With your numbers, the size is worked out from the actual build, and each value is marked ◆ with its source (manufacturer or dealer), with no name attached. Even one model helps. I check every value before it goes in. About sedimi

missingunofficial source, please checkchangedsent, awaiting review

ADV (alloy) 2025

2 missing

gravel · aluminium · sizes SM–XL · how visitors see it now

Builds: ADV 9.2 (Alloy), ADV 8.9 (alloy)

Cockpit: stem Boardman Alloy 31.8 + bars Boardman Alloy gravel 31.8

Stem (mm): SM 80, MD 80, LG 90, XL 100 · Bar reach 70 mm

negative for a stem pointing down, e.g. −6
Cranks, bar width and seatpost setback (optional) 1 missing

Bar width at the hoods, centre to centre.

SizeSMMDLGXL
Cranks (mm)
Bar width (mm)

Build: ADV 8.6

Cockpit: stem Boardman Alloy 31.8 + bars Boardman Alloy 31.8

Stem (mm): SM 80, MD 80, LG 90, XL 100 · Bar reach 70 mm

negative for a stem pointing down, e.g. −6
Cranks, bar width and seatpost setback (optional) 1 missing

Bar width at the hoods, centre to centre.

SizeSMMDLGXL
Cranks (mm)
Bar width (mm)
Cover, spacers and tyre (optional) 4 missing

A mandatory spacer is one that can’t be removed, for example because of internal hose routing.

Email a spreadsheet or PDFForward to a colleague

Have it in a spreadsheet? Send the export or a price list with the spec, just as it is, to [email protected]. I’ll copy the numbers across myself. Don’t have them at hand? Send the link to a colleague in R&D or service.

Not sure? Put a question mark after the number, like 100?, or explain in the note. You can paste a whole row from Excel in one go.

ADV (carbon C10) 2025

1 missing

gravel · carbon · sizes SM–XL · how visitors see it now

Builds: ADV 9.6 Carbon, ADV 9.2 Carbon, ADV 8.9 Carbon

Cockpit: stem Boardman Alloy 31.8 + bars Boardman Alloy gravel 31.8

Stem (mm): SM 80, MD 90, LG 100, XL 110 · Bar reach 70 mm

negative for a stem pointing down, e.g. −6
Cranks, bar width and seatpost setback (optional) 1 missing

Bar width at the hoods, centre to centre.

SizeSMMDLGXL
Cranks (mm)
Bar width (mm)
Cover, spacers and tyre (optional) 4 missing

A mandatory spacer is one that can’t be removed, for example because of internal hose routing.

SLR (alloy, rim brakes) 2021

1 missing

road · aluminium · sizes SM–XL · how visitors see it now

Build: SLR 8.6

Cockpit: stem Boardman Alloy 31.8 + bars Boardman Alloy road 31.8

Stem (mm): SM 90, MD 100, LG 110, XL 120 · Bar reach 75 mm

negative for a stem pointing down, e.g. −6
Cranks, bar width and seatpost setback (optional) 1 missing

Bar width at the hoods, centre to centre.

SizeSMMDLGXL
Cranks (mm)
Bar width (mm)
Cover, spacers and tyre (optional) 4 missing

A mandatory spacer is one that can’t be removed, for example because of internal hose routing.

SLR (carbon C10) 2025

3 missing

road · carbon · sizes XS–XL · how visitors see it now

Builds: SLR 9.8 Carbon, SLR 9.2 Carbon

Cockpit: stem Boardman SLR ICR + bars Boardman Aero Alloy

Stem (mm): XS 80, SM 90, MD 100, LG 110, XL 120

negative for a stem pointing down, e.g. −6
Cranks, bar width and seatpost setback (optional) 1 missing

Bar width at the hoods, centre to centre.

SizeXSSMMDLGXL
Cranks (mm)
Bar width (mm)

Build: SLR 9.6 Carbon

Cockpit: stem Boardman SLR ICR + bars Boardman Aero Alloy

Stem (mm): XS 80, SM 90, MD 100, LG 110, XL 120 · Angle −7°

Cranks, bar width and seatpost setback (optional) 1 missing

Bar width at the hoods, centre to centre.

SizeXSSMMDLGXL
Cranks (mm)
Bar width (mm)
Cover, spacers and tyre (optional) 4 missing

A mandatory spacer is one that can’t be removed, for example because of internal hose routing.

SLR (carbon C7) 2025

2 missing

road · carbon · sizes XS–XL · how visitors see it now

Build: SLR 8.9 Carbon

Cockpit: stem Boardman Alloy + bars Boardman Aero Alloy

Stem (mm): XS 80, SM 90, MD 100, LG 110, XL 120

negative for a stem pointing down, e.g. −6
Cranks, bar width and seatpost setback (optional) 1 missing

Bar width at the hoods, centre to centre.

SizeXSSMMDLGXL
Cranks (mm)
Bar width (mm)
Cover, spacers and tyre (optional) 4 missing

A mandatory spacer is one that can’t be removed, for example because of internal hose routing.

TRVL (road bars) 2025

1 missing

gravel · aluminium · sizes SM–LG · how visitors see it now

Build: TRVL 9.2 DB

Cockpit: stem Boardman Alloy 31.8 + bars Boardman Alloy gravel 31.8

Stem (mm): SM 80, MD 80, LG 90 · Bar reach 70 mm

negative for a stem pointing down, e.g. −6
Cranks, bar width and seatpost setback (optional) 1 missing

Bar width at the hoods, centre to centre.

SizeSMMDLG
Cranks (mm)
Bar width (mm)
Cover, spacers and tyre (optional) 4 missing

A mandatory spacer is one that can’t be removed, for example because of internal hose routing.

Models with all three values (1)

ADV Women's (alloy) 2025

all filled in

gravel · aluminium · sizes SM–LG · how visitors see it now

Build: ADV 8.6 Women's

Cockpit: stem Boardman Alloy 31.8 + bars Boardman Alloy 31.8

Stem 70 mm (all sizes) · Angle −7° · Bar reach 70 mm

Cranks, bar width and seatpost setback (optional) 1 missing

Bar width at the hoods, centre to centre.

SizeSMMDLG
Cranks (mm)
Bar width (mm)
Cover, spacers and tyre (optional) 4 missing

A mandatory spacer is one that can’t be removed, for example because of internal hose routing.

New models

Send what you have

Feel free to send only part of it. You can add the rest another time.

I’ll only use your email if something doesn’t add up and, if you ask, to let you know once the data is on the site. I won’t publish it and I’ll delete it on request. Sending this commits you to nothing.