Marin Gestalt XR

A race-ready gravel bike from 2025, made in 4 sizes from SM to XL.

Size

Stack 566 mmReach 420 mm

Geometry

Marin Gestalt XR geometry by frame size
Size
Fit
Stack (mm)How high the front sits	548	566	589	622
Reach (mm)How far forward the bars start	400	420	440	460
Stack ÷ reach Higher = more upright	1.37	1.35	1.34	1.35
Top tube (effective) (mm)Horizontal top-tube length	547	582	609	638
Seat tube angle Saddle position over the pedals	75°	74°	74°	74°
Seat tube length (mm)Frame size reference	460	485	505	530
Head tube length (mm)Front-end height	130	150	175	210
Standover (mm)Clearance when you stop	679	688	709	735
Handling
Head tube angle Steeper = quicker steering	67.5°	67.5°	67.5°	67.5°
Fork offset (mm)Fork rake	50	50	50	50
Trail (mm)More = steadier steering	90	90	90	90
Wheelbase (mm)Longer = more stable	1065	1093	1122	1156
Chainstay (mm)Shorter = snappier	425	425	425	425
BB drop (mm)More = lower centre of gravity	80	80	80	80
BB height (mm)Pedal clearance in corners	256	256	256	256
Front centre (mm)Room for your toes	653	680	710	743

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

A racy stance with road-bike efficiency on fast, mixed surfaces.

Size MD is lower and longer than 100% of the 106 gravel frames we track.

The closest gravel frames from other ranges, against size MD here.

Bikes with a similar fit, compared with size MD of this bike
Bike	Size	Stack	Reach
Bmc URS 01 LT ONE2026Stack −6 mm, reach −20 mm	S	−6 mm	−20 mm
Wilier Adlar2024Stack −4 mm, reach −16 mm	S	−4 mm	−16 mm
Megamo WEST 032027Stack +10 mm, reach −20 mm	M	+10 mm	−20 mm
Merida SILEX 2002026Stack +4 mm, reach −28 mm	XS	+4 mm	−28 mm
Canyon Grizl 52025Stack −10 mm, reach −23 mm	S	−10 mm	−23 mm
Megamo SILK 01 SLR2026Stack +15 mm, reach −12 mm	L	+15 mm	−12 mm