Marin Gestalt 1

An adventure-ready gravel bike from 2017, made in 6 sizes from 50 to 60.

Size

Stack 579 mmReach 373 mm

Geometry

Marin Gestalt 1 geometry by frame size
Size
Fit
Stack (mm)How high the front sits	550	565	579	599	618	637
Reach (mm)How far forward the bars start	342	358	373	382	396	399
Stack ÷ reach Higher = more upright	1.61	1.58	1.55	1.57	1.56	1.60
Top tube (effective) (mm)Horizontal top-tube length	500	525	545	565	585	600
Seat tube angle Saddle position over the pedals	74°	73.5°	73.5°	73°	73°	72.5°
Seat tube length (mm)Frame size reference	470	490	510	530	550	570
Head tube length (mm)Front-end height	120	135	150	170	190	210
Standover (mm)Clearance when you stop	760	777	793	812	831	850
Handling
Head tube angle Steeper = quicker steering	72°	72.3°	72.3°	72.5°	72.5°	72.5°
Fork offset (mm)Fork rake	45	45	45	45	45	45
Trail (mm)More = steadier steering	66	64	64	63	63	63
Wheelbase (mm)Longer = more stable	954	972	992	1004	1024	1033
Chainstay (mm)Shorter = snappier	415	415	415	415	415	415
BB drop (mm)More = lower centre of gravity	72	72	72	72	72	72
BB height (mm)Pedal clearance in corners	264	264	264	264	264	264
Front centre (mm)Room for your toes	550	567	588	600	620	629

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

An upright, steady position that suits loaded bikes and long hours in the saddle.

Size 54 is more upright than 94% of the 106 gravel frames we track.

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

Bikes with a similar fit, compared with size 54 of this bike
Bike	Size	Stack	Reach
Trek Checkpoint AL 32020Stack −5 mm, reach +5 mm	54cm	−5 mm	+5 mm
Specialized Crux E52018Stack +4 mm, reach +11 mm	56cm	+4 mm	+11 mm
MMR X-Grip-302026Stack −14 mm, reach +2 mm	M	−14 mm	+2 mm
MMR X-Grip 002026Stack −14 mm, reach +2 mm	M	−14 mm	+2 mm
Megamo JAKAR 202026Stack −9 mm, reach +3 mm	M	−9 mm	+3 mm
Wilier Jena2026Stack +3 mm, reach +9 mm	M	+3 mm	+9 mm

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

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