Backroad (2025) vs. Checkpoint SL Gen 3 (2025)

A

Rose · Gravel · 700c · tyres up to 53 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

B

Trek · 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

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

Checkpoint SL Gen 3 (2025) M vs. Backroad (2025) M: 5 mm less reach · 1.5° slacker seat angle · 5 mm longer chainstays

Measure	Backroad (2025) M	Checkpoint SL Gen 3 (2025) M
Frame
Stackmm	581	579−2
Reachmm	396	391−5
Stack / Reach	1.46	1.48+0.02
Head angle°	71.3°	71.6°+0.3°
Seat angle°	74.3°	72.8°−1.5°
Head tubemm	137	130−7
Seat tubemm	501	505+4
Top tube (effective)mm	560	566+6
Chainstaymm	425	430+5
Rear centre (horizontal)mm	418	423+5
Wheelbasemm	1035	1034−1
Front centremm	623	615−8
BB dropmm	78	76−2
BB heightmm	278	275−3
Fork offsetmm	48	49+1
Trailmm	71	68−3
Fork axle-to-crownmm	–	–
Cockpit & riding position
Bar reachmm	481	476−5
Bar stackmm	641	638−2
Saddle – barmm	677	689+12
Saddle-to-bar dropmm	52	49−3
Tyre clearancemm	53	–

italic = calculated · tap a row to pin the measure in the drawing · Δ relative to Backroad (2025)

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: 195 mm behind · 693 mm above BB
Handlebar: 481 mm ahead · 641 mm above BB
Saddle–bar: 677 mm · drop 52 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 Backroad (2025) M

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