Nashbar offers the Mongoose Unisex Selous Comp Gravel Bike
for $899.99. In-cart it drops to $674.99
. With $14.99
for shipping, that's the lowest total price we could find by $501. It's available in sizes 50cm to 58cm and features an aluminum frame, carbon fiber fork, 2x10-speed Shimano Tiagra shifters, Shimano Tiagra front derailleur and Shimano Sora rear derailleur, Tektro HY-RD disc brakes, FSA Omega crankset, and Mongoose Cross saddle.