Áspero (2020) vs. Boone (2022–2025)

A

Cervélo · Gravel · 700cManufacturer data · as of Oct 25, 2026Source

Cockpit: 20 mm spacers · 100 mm stem · -6°

SpacersStemAngle °

Saddle: same saddle height · 0 mm setback · centred (default)

Saddle heightSetbackForward (+)/back

B

Trek · Gravel · 700c · tyres up to 38 mmManufacturer data · as of Oct 25, 2026Source

Cockpit: 20 mm spacers · 100 mm stem · -6°

SpacersStemAngle °

Saddle: same saddle height · 0 mm setback · centred (default)

Saddle heightSetbackForward (+)/back

Reach: Horizontal distance from the bottom bracket to the top of the head tube. More reach = more stretched-out position. · grid 10 cm

Boone (2022–2025) 54 vs. Áspero (2020) 54: 5 mm less reach · 7 mm more stack · 0.5° steeper seat angle · 5 mm longer chainstays

Measure	Áspero (2020) 54	Boone (2022–2025) 54
Frame
Stackmm	555	562+7
Reachmm	388	383−5
Stack / Reach	1.43	1.47+0.04
Head angle°	72.0°	72.0°±0
Seat angle°	73.5°	74.0°+0.5°
Head tubemm	133	138+5
Seat tubemm	–	513
Top tube (effective)mm	553	544−9
Chainstaymm	420	425+5
Rear centre (horizontal)mm	413	420+6
Wheelbasemm	1005	1010+5
Front centremm	597	594−3
BB dropmm	76	68−8
BB heightmm	275	275±0
Fork offsetmm	46	45−1
Trailmm	66	64−1
Fork axle-to-crownmm	–	–
Cockpit & riding position
Bar reachmm	473	468−5
Bar stackmm	614	621+7
Saddle – barmm	678	667−11
Saddle-to-bar dropmm	77	71−5
Tyre clearancemm	–	38

italic = calculated · tap a row to pin the measure in the drawing · Δ relative to Áspero (2020)

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

mmmmmm

Cockpit

mmmm°

Saddle: 204 mm behind · 690 mm above BB
Handlebar: 473 mm ahead · 614 mm above BB
Saddle–bar: 678 mm · drop 77 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

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

Similar to Áspero (2020) 54

only Gravel

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.

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

Add a bike

BrandModelModel year *CategoryWheel (front)Wheel rearTyre clearance, max. (mm)Source (manufacturer page with geometry table) *

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*	Setting	Stack*	Reach*	Head ∠ °*	Seat ∠ °*	Head tube*	Chainstay*	BB drop*	BB drop rear	Seat tube	Top tube	Wheelbase	Fork offset	Axle-to-crown	BB height	Front ctr.	Trail	Stem	Spacers