Trek Domane SLR 9 Gen 4

An all-round road bike from 2026, made in 8 sizes from 47 to 62. Fits tyres up to 38 mm.

Size

Stack 575 mmReach 374 mm

Geometry

Trek Domane SLR 9 Gen 4 geometry by frame size
Size
Fit
Stack (mm)How high the front sits	527	546	561	575	591	611	632	656
Reach (mm)How far forward the bars start	364	368	371	374	377	380	383	386
Stack ÷ reach Higher = more upright	1.45	1.48	1.51	1.54	1.57	1.61	1.65	1.70
Top tube (effective) (mm)Horizontal top-tube length	509	518	530	542	554	567	579	593
Seat tube angle Saddle position over the pedals	74.6°	74.6°	74.2°	73.7°	73.3°	73°	72.8°	72.5°
Seat tube length (mm)Frame size reference	420	450	475	500	525	548	567	586
Head tube length (mm)Front-end height	110	130	145	160	175	195	220	245
Standover (mm)Clearance when you stop	686	716	735	754	776	796	817	835
Handling
Head tube angle Steeper = quicker steering	71°	71.1°	71.3°	71.3°	71.9°	72°	72.1°	72.1°
Fork offset (mm)Fork rake	53	53	54	53	48	49	48	48
Trail (mm)More = steadier steering	61	60	59	59	61	60	59	59
Wheelbase (mm)Longer = more stable	986	996	1003	1010	1008	1022	1032	1042
Chainstay (mm)Shorter = snappier	420	420	420	420	420	425	425	425
BB drop (mm)More = lower centre of gravity	80	80	80	80	78	78	75	75
BB height (mm)Pedal clearance in corners	256	256	256	256	258	258	261	261
Front centre (mm)Room for your toes	579	589	596	603	600	609	618	628

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 54 is more upright than 94% of the 218 road frames we track.

The closest road frames from other ranges, against size 54 here.

Bikes with a similar fit, compared with size 54 of this bike
Bike	Size	Stack	Reach
Kross ALTA 2.02026Stack −3 mm, reach −1 mm	M	−3 mm	−1 mm
Cannondale Synapse Carbon 12026Stack −5 mm, reach +7 mm	54	−5 mm	+7 mm
MMR Grand Tour 102026Stack −6 mm, reach +6 mm	M	−6 mm	+6 mm
Canyon Endurace CFR AXS2026Stack −7 mm, reach +1 mm	S	−7 mm	+1 mm
Grind Grit2026Stack −4 mm, reach +4 mm	M	−4 mm	+4 mm
Specialized Roubaix SL8 - Shimano Tiagra2027Stack −9 mm, reach −4 mm	52	−9 mm	−4 mm