Surly Cocktail Fork - 27.5" / 29" QRx100mm 1-1/8" Straight Steerer 445mm Axle To Crown Steel BLKSurly Cocktail Fork Assembly 445mm 29" 27. 5 9 x 100mm QR 1 1 8" Black Inner Fork Bosses. The Cocktail Fork is non suspension corrected and ready to dig into whatevers served up. We gave it two 4 pack bottle mounts and the ability to run fenders alongside an 8 or 24 Pack style rack for all your necessary post ride accoutrements. The Surly Cocktail fork features 100% Surly Chromoly steel construction 51mm IS disc brake mounts and clearance for tires up