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Surly

Surly: stock cockpit data

24 values missing in 6 of 8 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 Surly 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

Disc Trucker 26" 2026

7 missing

allroad · steel · sizes 42–54 · how visitors see it now

I don’t have the stock build for this model.

Size4246505254
Stem (mm)
negative for a stem pointing down, e.g. −6
Cranks, bar width and seatpost setback (optional) 11 missing

Bar width at the hoods, centre to centre.

Size4246505254
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 marcel@bikefit.space. 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.

Disc Trucker 700c 2026

7 missing

allroad · steel · sizes 56–64 · how visitors see it now

I don’t have the stock build for this model.

Size5658606264
Stem (mm)
negative for a stem pointing down, e.g. −6
Cranks, bar width and seatpost setback (optional) 11 missing

Bar width at the hoods, centre to centre.

Size5658606264
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.

Grappler 2026

1 missing

gravel · steel · sizes XS–XL · how visitors see it now

Build: Grappler (microSHIFT ADVENT X)

Cockpit: stem Promax DA-296 + bars Salsa Cowchipper

Stem 60 mm (all sizes) · Bar reach 68 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.

SizeXSSMLXL
Cranks (mm)
Bar width (mm)
Cover, spacers and tyre (optional) 3 missing

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

Midnight Special (steel fork) 2026

1 missing

allroad · steel · sizes 40–64 · how visitors see it now

Build: Midnight Special 700c (Stainless Teal / Hi-Viz Black / Fool's Gold)

Cockpit: stem Teravail Radia + bars Teravail Radia

Stem (mm): 40 70, 46 80, 50 80, 54 100, 56 100, 58 120, 60 120, 64 120 · Angle −6° · Bar reach 68 mm

Cranks, bar width and seatpost setback (optional)

Bar width at the hoods, centre to centre.

Size4046505456586064
Cranks (mm)
Bar width (mm)

Build: Midnight Special 650b – Black

Cockpit: stem ProMax 31.8 4-bolt + bars Salsa Cowbell 3

Stem (mm): 40 70, 46 80, 50 80, 54 100, 56 100, 58 120, 60 120, 64 120 · Bar reach 68 mm

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

Bar width at the hoods, centre to centre.

Size4046505456586064
Cranks (mm)
Bar width (mm)
Cover, spacers and tyre (optional) 3 missing

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

Preamble (road bars) 2026

1 missing 1 to check

allroad · steel · sizes X-Small–X-Large · how visitors see it now

Build: Preamble Drop Bar (Red Hot Cheddar)

Cockpit: stem TranzX JD-ST123A + bars TranzX JD-RA48A

Stem (mm): X-Small 80, Small 80, Medium 90, Large 100, X-Large 100

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

Bar width at the hoods, centre to centre.

SizeX-SmallSmallMediumLargeX-Large
Cranks (mm)
Bar width (mm)
Cover, spacers and tyre (optional) 3 missing

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

Steamroller 2026

7 missing

road · steel · sizes 49–62 · how visitors see it now

I don’t have the stock build for this model.

Size4953565962
Stem (mm)
negative for a stem pointing down, e.g. −6
Cranks, bar width and seatpost setback (optional) 11 missing

Bar width at the hoods, centre to centre.

Size4953565962
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 (2)

Midnight Special (carbon fork) 2026

all filled in

allroad · steel · sizes 40–64 · how visitors see it now

Build: Midnight Special 700c (Black Cherry Fizz)

Cockpit: stem Teravail Radia + bars Teravail Radia

Stem (mm): 40 70, 46 80, 50 80, 54 100, 56 100, 58 120, 60 120, 64 120 · Angle −6° · Bar reach 68 mm

Cranks, bar width and seatpost setback (optional)

Bar width at the hoods, centre to centre.

Size4046505456586064
Cranks (mm)
Bar width (mm)
Cover, spacers and tyre (optional) 3 missing

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

Straggler 2026

all filled in 1 to check

gravel · steel · sizes 46–64 · how visitors see it now

Build: Straggler (Hi-Viz Black)

Cockpit: stem TranzX JD-ST123A + bars Salsa Cowchipper

Stem (mm): 46 70, 49 80, 52 90, 54 90, 56 100, 58 100, 61 100, 64 110 · Bar reach 68 mm

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

Bar width at the hoods, centre to centre.

Size4649525456586164
Cranks (mm)
Bar width (mm)
Cover, spacers and tyre (optional) 3 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.