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Jamis

Jamis: stock cockpit data

7 values missing in 2 of 6 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 Jamis 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

Ventura 2026

1 missing

endurance road · aluminium · sizes 48–61 · how visitors see it now

Build: Ventura A1

Cockpit: stem Ritchey 4-Axis + bars Ritchey Logic

Stem (mm): 48 90, 51 90, 54 100, 56 100, 58 120, 61 120 · Angle −6° · Bar reach 73 mm

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

Bar width at the hoods, centre to centre.

Size485154565861
Cranks (mm)
Bar width (mm)

Build: Ventura A2

Cockpit: stem Jamis Road 3D forged + bars Jamis Ergo

Stem (mm): 48 90, 51 90, 54 100, 56 100, 58 120, 61 120 · Angle −7°

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

Bar width at the hoods, centre to centre.

Size485154565861
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.

Ventura Women's 2026

6 missing

endurance road · aluminium · sizes 44–54 · how visitors see it now

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

Size44485154
Stem (mm)
negative for a stem pointing down, e.g. −6
Cranks, bar width and seatpost setback (optional) 9 missing

Bar width at the hoods, centre to centre.

Size44485154
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 (4)

Renegade (steel) 2026

all filled in

gravel · steel · sizes 48–61 · how visitors see it now

Build: Renegade S1 / Renegade S2 / Renegade S3 …

Cockpit: stem Jamis Renegade stock

Stem (mm): 48 60, 51 60, 54 70, 56 70, 58 80, 61 80 · Angle −6° · Bar reach 73 mm

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

Bar width at the hoods, centre to centre.

Size485154565861
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.

Renegade A (alloy) 2026

all filled in

gravel · aluminium · sizes 48–61 · how visitors see it now

Build: Renegade A1

Cockpit: stem Jamis Road 3D forged + bars Ritchey Baquiano Comp

Stem (mm): 48 80, 51 80, 54 90, 56 90, 58 110, 61 110 · Angle −7° · Bar reach 73 mm

Cranks, bar width and seatpost setback (optional) 2 missing

Bar width at the hoods, centre to centre.

Size485154565861
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.

Renegade C (carbon) 2026

all filled in

gravel · carbon · sizes 48–61 · how visitors see it now

Build: Renegade C1 Red AXS 12-speed

Cockpit: stem Ritchey C-220 + bars Ritchey WCS Carbon Ergomax

Stem (mm): 48 60, 51 60, 54 70, 56 70, 58 80, 61 80 · Angle −6° · Bar reach 73 mm

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

Bar width at the hoods, centre to centre.

Size485154565861
Cranks (mm)
Bar width (mm)

Build: Renegade C2 GRX

Cockpit: stem Ritchey Comp 4-Axis + bars Ritchey Ergomax

Stem (mm): 48 60, 51 60, 54 70, 56 70, 58 80, 61 80 · Angle −6° · Bar reach 73 mm

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

Bar width at the hoods, centre to centre.

Size485154565861
Cranks (mm)
Bar width (mm)

Build: Renegade C4 Apex AXS

Cockpit: stem Ritchey 4-Axis + bars Ritchey Baquiano Comp

Stem (mm): 48 60, 51 60, 54 70, 56 70, 58 80, 61 80 · Angle −6° · Bar reach 73 mm

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

Bar width at the hoods, centre to centre.

Size485154565861
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.

Ventura All-Road 2026

all filled in

allroad · aluminium · sizes 44–61 · how visitors see it now

Build: Ventura A1 DFW / Ventura A2 DFW / Ventura A3 …

Cockpit: stem Jamis Ventura All-Road stock

Stem (mm): 44 80, 48 80, 51 90, 54 90, 56 90, 58 100, 61 100 · Angle −6° · Bar reach 73 mm

Cranks, bar width and seatpost setback (optional) 3 missing

Bar width at the hoods, centre to centre.

Size44485154565861
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.