Trek Émonda ALR 4 Disc

An all-round road bike from 2020, made in 9 sizes from 47 to 64.

Size

Stack 577 mmReach 387 mm

Geometry

Trek Émonda ALR 4 Disc geometry by frame size
Size
Fit
Stack (mm)How high the front sits	522	535	547	555	577	596	615	634	654
Reach (mm)How far forward the bars start	369	374	379	381	387	391	395	398	401
Stack ÷ reach Higher = more upright	1.41	1.43	1.44	1.46	1.49	1.52	1.56	1.59	1.63
Top tube (effective) (mm)Horizontal top-tube length	513	521	534	543	560	573	586	598	610
Seat tube angle Saddle position over the pedals	74.6°	74.6°	74.2°	73.7°	73.3°	73°	72.8°	72.5°	72.3°
Seat tube length (mm)Frame size reference	424	456	473	486	513	533	553	573	593
Head tube length (mm)Front-end height	115	130	140	155	170	190	210	230	250
Standover (mm)Clearance when you stop	698	707	729	742	767	786	804	822	841
Handling
Head tube angle Steeper = quicker steering	71.2°	72.1°	72.8°	73°	73.5°	73.8°	73.9°	73.9°	74°
Fork offset (mm)Fork rake	46	45	45	46	40	41	41	41	40
Trail (mm)More = steadier steering	67	61	57	56	58	56	56	55	55
Wheelbase (mm)Longer = more stable	974	974	977	981	983	992	1001	1010	1018
Chainstay (mm)Shorter = snappier	410	410	410	410	410	411	411	412	413
BB drop (mm)More = lower centre of gravity	72	72	72	70	70	68	68	68	68
BB height (mm)Pedal clearance in corners	264	264	264	266	266	268	268	268	268
Front centre (mm)Room for your toes	575	575	578	581	583	591	600	607	614
Other
Weight (kg)Complete bike, as published	9.39	9.39	9.39	9.39	9.39	9.39	9.39	9.39	9.39

Underlined values are calculated by BikeLens. A dash means the brand doesn't publish it.

Between race and comfort. A good fit for sportives, club rides and fast days out.

Size 56 is more upright than 70% of the 218 road frames we track.

The closest road frames from other ranges, against size 56 here.

Bikes with a similar fit, compared with size 56 of this bike
Bike	Size	Stack	Reach
Basso Venta R2026Stack +3 mm, reach −4 mm	56	+3 mm	−4 mm
Specialized S-Works Roubaix - Team2020Stack −3 mm, reach +5 mm	57cm	−3 mm	+5 mm
Cannondale SuperSix EVO 62026Stack −2 mm, reach +2 mm	56	−2 mm	+2 mm
Specialized S-Works Tarmac SL8 LTD – SRAM RED AXS2025Stack −4 mm, reach +6 mm	56	−4 mm	+6 mm
Merida SCULTURA RIM 1002026Stack −3 mm, reach +3 mm	MD/LG	−3 mm	+3 mm
Wilier Granturismo SL2024Stack +9 mm, reach −3 mm	L	+9 mm	−3 mm

These builds share this exact geometry, so they fit the same.