Neuron AL (2027) vs. Tallboy (2027)

A

Canyon · Trail · 27.5″ / 29″Manufacturer data · as of Oct 18, 2026Source

Cockpit: 15 mm spacers · 45 mm stem · 0° (stock)

SpacersStemAngle °

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

Saddle heightSetbackForward (+)/back

B

Santa Cruz · Trail · 29″Manufacturer data · as of Oct 18, 2026Source

Cockpit: 15 mm spacers · 45 mm stem · 0°

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

Tallboy (2027) M · High vs. Neuron AL (2027) M: 0.9° slacker head angle · 1.3° steeper seat angle · 5 mm shorter chainstays

Measure	Neuron AL (2027) M	Tallboy (2027) M · High
Frame
Stackmm	626	624−2
Reachmm	455	455±0
Stack / Reach	1.38	1.37±0
Head angle°	66.0°	65.1°−0.9°
Seat angle°	76.0°	77.3°+1.3°
Head tubemm	110	115+5
Seat tubemm	425	400−25
Top tube (effective)mm	611	596−15
Chainstaymm	440	435−5
Rear centre (horizontal)mm	438	434−5
Wheelbasemm	1203	1212+9
Front centremm	766	777+11
BB dropmm	38	36−2
BB heightmm	334	336+2
Fork offsetmm	44	46+2
Trailmm	118	122+4
Fork axle-to-crownmm	–	–
Cockpit & riding position
Bar reachmm	482	481−1
Bar stackmm	676	675−2
Saddle – barmm	656	639−17
Saddle-to-bar dropmm	22	28+5

italic = calculated · tap a row to pin the measure in the drawing · Δ relative to Neuron AL (2027)

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: 174 mm behind · 699 mm above BB
Handlebar: 482 mm ahead · 676 mm above BB
Saddle–bar: 656 mm · drop 22 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 Neuron AL (2027) M

only Trail

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