BikeGeoLab
ENDE

Rose Backroad AL (2020–2024) – geometry

A
Rose · Gravel · 700c · tyres up to 45 mmManufacturer data · as of Oct 25, 2026Source
Cockpit: 20 mm spacers · 100 mm stem · -6°
Saddle: same saddle height · 0 mm setback · centred (default)
Fixpoint
374
Reach: Horizontal distance from the bottom bracket to the top of the head tube. More reach = more stretched-out position. · grid 10 cm
MeasureBackroad AL (2020–2024) 55
Frame
Stackmm583
Reachmm374
Stack / Reach1.56
Head angle°70.5°
Seat angle°73.8°
Head tubemm158
Seat tubemm500
Top tube (effective)mm543
Chainstaymm430
Rear centre (horizontal)mm424
Wheelbasemm1029
Front centremm609
BB dropmm70
BB heightmm288
Fork offsetmm47
Trailmm77
Fork axle-to-crownmm–
Cockpit & riding position
Bar reachmm457
Bar stackmm644
Saddle – barmm659
Saddle-to-bar dropmm48
Tyre clearancemm45

italic = calculated · tap a row to pin the measure in the drawing · Δ relative to Backroad AL (2020–2024)

Geometry table Rose Backroad AL (2020–2024)

Gravel · 700c · Sizes 46–64 · Stack 535–643 mm · Reach 352–410 mm · Head angle 69.5–72.0° · Tyre clearance 45 mm

Measure464951535557596164
Stackmm535543548568583601606621643
Reachmm352356365369374382391399410
Stack / Reach1.521.531.501.541.561.571.551.561.57
Head angle°69.5°69.5°70.0°70.5°70.5°71.0°71.3°71.5°72.0°
Seat angle°75.0°74.5°74.3°74.0°73.8°73.5°73.5°73.3°73.0°
Head tubemm110118128142158175190205228
Seat tubemm420450475490500510530555605
Top tube (effective)mm495506519531543560570586606
Chainstaymm430430430430430430430430430
Rear centre (horizontal)mm424424424424424424425425425
Wheelbasemm99910061012101810291037104910601072
Front centremm579586592599609618627638650
BB dropmm727270707070656565
BB heightmm286286288288288288293293293
Fork offsetmm474747474747474747
Trailmm848480777774727067

italic = calculated from the other values · Source: Geometry table Rose, as of Oct 25, 2026

Size finder · transfer your fit

Transfer your riding position to a new bike

Enter your well-fitting bike with saddle height, seatpost and cockpit. For every size of the new bike we calculate the stem, spacers, saddle height, setback and saddle position that reproduce the same contact points. This is a geometric approximation without guarantee and does not replace a professional bike fit.

1

Your bike – how you sit today

Saddle

Cockpit

Saddle
201 mm behind · 691 mm above BB
Handlebar
457 mm ahead · 644 mm above BB
Saddle–bar
659 mm · drop 48 mm

Saddle height: bottom bracket centre to top of saddle along the seat-tube axis. Saddle fore/aft: + forward, − back. Spacers incl. top cap, handlebar centre = stem clamp.

2

New bike – what do I need to set up?

Choose the bike you want to transfer your position to. We calculate every size.

Explore

All frame sizes at a glance

All frame sizes by stack and reach or any other measure – click a dot or line to add the bike to the comparison.

1040 of 1040 sizes · 159 models
350400450500550450500550600650700Reach (mm)Stack (mm)A

Each dot is a frame size. Coloured dots with a letter = current comparison.

Similar to Backroad AL (2020–2024) 55

Similarity over the axes of the geometry profile below; stack and reach count 1.5×. The best-matching size per model, filters are respected.

Geometry profile

Each line is a frame size across all selected measures. Drag on an axis to filter a range – this also affects the chart and the similarity list.

Stackmm500600Drag to filter Stack · click to remove the filterReachmm350400450500Drag to filter Reach · click to remove the filterHead angle°65.0°70.0°Drag to filter Head angle · click to remove the filterSeat angle°72.0°74.0°76.0°78.0°Drag to filter Seat angle · click to remove the filterWheelbasemm10001200Drag to filter Wheelbase · click to remove the filterChainstaymm420440Drag to filter Chainstay · click to remove the filterBB heightmm300350Drag to filter BB height · click to remove the filterTrailmm50100150Drag to filter Trail · click to remove the filter

Drag on an axis to filter a range · click a line to compare the bike

BikeGeoLab

Making bike geometry visible – with verified manufacturer data, model year and source.

Geometry data comes from the manufacturers' geometry tables, each linked with source and retrieval date. No guarantee for correctness – data may be wrong or outdated, calculated values and the size finder are approximations and do not replace a professional bike fit. Brand and model names belong to their respective owners; there is no affiliation with the manufacturers.

Add a bike

Paste a geometry table

Select the table on the manufacturer's page, copy it and paste it here. Sizes as columns or rows, German or English; values like “435/432” for flip chips are recognised.

Sizes (mm / degrees · * required · setting e.g. “High”, “Low”, “Mullet”)

Size*SettingStack*Reach*Head ∠ °*Seat ∠ °*Head tube*Chainstay*BB drop*BB drop rearSeat tubeTop tubeWheelbaseFork offsetAxle-to-crownBB heightFront ctr.TrailStemSpacers