Trek CheckOUT SL Frameset

The CheckOUT SL Frame Set is an adventure-ready gravel bike frame built for getting far, far out there. Its 500 Series OCLV frame comes with a 55 mm RockShox SIDLuxe Ultimate IsoStrut rear shock and integrated bag and rack mounts. Ready for you to build your dream gravel adventure rig or ultra-endurance explorer - the world is your oyster.

Ride-it-all suspension
55 mm rear travel and a new 60 mm Rudy XL suspension fork designed in collaboration with RockShox help smooth out rough gravel roads and let you venture onto singletrack with more comfort and capability than a rigid gravel bike.

The ultimate off-road drop bar
A new GR CheckOUT gravel drop bar has multiple hand positionings for more comfort and efficiency wherever your ride takes you. Settle into narrow tops for more speed on champagne gravel or reach for the extra-wide drops for total control on the rough stuff.

The science of full-suspension gravel
The CheckOUT's full-suspension set-up is proven to decrease fatigue and increase comfort and control when compared to its rigid counterparts, leading to a 7.3% reduction in rider ventilation, a 41.5% reduction in fatiguing vibrational energy and 23% less steering variation. 

Big ol' tyre clearance
Room for tyres up to 56 mm/2.2? wide lets you tackle the rough stuff with confidence.

Geometry designed to keep you in control
Get more stability and comfort on multi-surface, multi-day adventures with an all-new Gravel Adventure geometry designed with a longer reach and higher stack.

Built for bikepacking
Haul it all with 18* frame mounts, an integrated rear rack that works with the bike's suspension and dropper post, and Adjustable Multi-Mounts that lets you position your bottles and gear exactly where you want 'em in the frame.*Sizes ML and up