Size ML (M/L): available on order within 2 weeks. The Trek Check-OUT SL 5 in Dark Star/Dark Web is a full-suspension carbon gravel bike for gravel roads, bumpy streets, and single trails. The RockShox SIDluxe IsoStrut shock offers 55 mm of travel at the rear, while the RockShox Rudy XL fork provides 60 mm at the front. It also features Bontrager Paradigm Comp wheels, a Shimano GRX 12-speed drivetrain, and a TranzX Vario seat post. Item number: 5338107 EAN: 197216231240