Trek CheckOUT SL 5 Adventure Gravel Bike 2026

CheckOUT SL 5 is an adventure-ready full suspension gravel bike for getting way, way out there. Its carbon frame delivers 55mm of rear travel from a RockShox SIDluxe IsoStrut shock, while a RockShox Rudy XL fork smooths rowdy roads and trails with 60mm of travel. It comes ready to explore with Bontrager Paradigm Comp wheels, a 12-speed Shimano GRX drivetrain, and TranzX dropper post.

SPECIFICATIONS

*Please note - spec applies to all sizes unless listed separately

Frameset
Frame
500 Series OCLV Carbon, integrated frame bag mounts, integrated rack, T47, UDH, 142x12mm chamfered thru axle, 55mm travel
Fork
RockShox Rudy XL Ultimate, Charger Race Day 2 Solo Air spring, tapered steerer, 45mm offset, 12x100mm thru axle, 60mm travel
Shock
RockShox SIDluxe Ultimate 3P, 170mmx27.5mm

Weight
Weight
ML - 12.74 kg / 28.09 lbs (with TLR sealant, no tubes, excluding rear rack)
Weight limit
This bike has a maximum total weight limit (combined weight of bicycle, rider, and cargo) of 275 pounds (125 kg).

Drivetrain
Shifter
Shimano GRX RX820, 12 speed
Rear derailleur
Shimano GRX RX822, 51T max cog
*Crank
Size: S
Shimano GRX RX610, 38T, 160mm length
Size: M, ML
Shimano GRX RX610, 38T, 170mm length
Size: L, XL
Shimano GRX RX610, 38T, 172.5mm length
Bottom bracket
Praxis, T47 threaded, internal bearing
Cassette
Shimano XT M8200, 10-51, 12 speed
Chain
Shimano XT M8100, 12 speed
Max chainring size
1x: 38T

Wheels
Wheel front
Bontrager Paradigm Comp 25, Tubeless Ready, 25 mm rim width, 100x12 mm thru axle
Wheel rear
Bontrager Paradigm Comp 25, Tubeless Ready, 25mm rim width, SRAM XD-R 12-speed freehub, 142x12 thru axle
Skewer rear
Bontrager Switch chamfered thru axle, removable lever
Tire
Bontrager Betasso RSL GX, Tubeless ready, aramid bead, 60 tpi, 700x50mm
Tire part
Bontrager TLR sealant, 180 ml/6 oz
Rim strip
Bontrager TLR
Max tire size
56mm/2.20" (as measured, see manual for details)

Components
Saddle
Verse Short Comp, steel rails, 145mm width
Seatpost
TranzX JD-YSI36, 100mm travel, internal routing, 31.6mm, 328mm length
*Handlebar
Size: S
Bontrager GR Checkout, 42cm
Size: M
Bontrager GR Checkout, 44cm
Size: ML, L
Bontrager GR Checkout, 46cm
Size: XL
Bontrager GR Checkout, 48cm
Handlebar tape
Bontrager Supertack Perf tape
*Stem
Size: S, M
Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 60mm length
Size: ML, L
Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 70mm length
Size: XL
Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 80mm length
Brake rotor
Shimano CL800, centerlock, 160mm
Rotor size
Max brake rotor sizes: 180mm front & rear

Accessories
Cargo rack
Checkout rear rack

We reserve the right to make changes to the product information contained on this site at any time without notice, including with respect to equipment, specifications, models, colors, materials, and pricing. Due to supply chain issues, compatible parts may be substituted at any time without notice.

Bike and frame weights are based off pre-production painted frames at time of publication. Weights may vary in final production.