Trek Checkpoint SL 6

A race-ready gravel bike from 2021, made in 2 sizes from 49 to 58.

Size

Stack 532 mmReach 373 mm

Geometry

Trek Checkpoint SL 6 geometry by frame size
Size
Fit
Stack (mm)How high the front sits	532	609
Reach (mm)How far forward the bars start	373	391
Stack ÷ reach Higher = more upright	1.43	1.56
Top tube (effective) (mm)Horizontal top-tube length	515	577
Seat tube angle Saddle position over the pedals	75°	73°
Seat tube length (mm)Frame size reference	490	580
Head tube length (mm)Front-end height	90	171
Standover (mm)Clearance when you stop	723	817
Handling
Head tube angle Steeper = quicker steering	71.4°	72.3°
Fork offset (mm)Fork rake	49	49
Trail (mm)More = steadier steering	66	61
Wheelbase (mm)Longer = more stable	995	1032
Chainstay (mm)Shorter = snappier	425	425
BB drop (mm)More = lower centre of gravity	78	74
BB height (mm)Pedal clearance in corners	258	262
Front centre (mm)Room for your toes	582	618

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 49 is lower and longer than 81% of the 106 gravel frames we track.

The closest gravel frames from other ranges, against size 49 here.

Bikes with a similar fit, compared with size 49 of this bike
Bike	Size	Stack	Reach
Cannondale SuperX 12023Stack +3 mm, reach −2 mm	51	+3 mm	−2 mm
Cervelo Áspero2025Stack −2 mm, reach +6 mm	51	−2 mm	+6 mm
Canyon Inflite CF SLX 72026Stack −5 mm, reach +3 mm	XS	−5 mm	+3 mm
Specialized Crux 5 Comp - SRAM Rival XPLR2027Stack −2 mm, reach +2 mm	49	−2 mm	+2 mm
Cervelo Áspero-52026Stack −7 mm, reach +4 mm	51	−7 mm	+4 mm
MMR Simun 00 Plus2026Stack −7 mm, reach +7 mm	S	−7 mm	+7 mm