Designed to provide just what’s needed and not an ounce more the Surly Preamble Fork is offered in two configurations to accommodate 650b and 700c wheel sizes. It has 51mm I.S. disc caliper mounts accepts fenders and has fork crown and mid-blade rack mounts. For commutes and other quests on pavement and gravel the uni-crown Preamble Fork rides smooth from punching in to punching out.100% Surly Chromoly steel for comfort and durability Disc-brake specific Fork crown and mid-blade rack mounts Fender compatibility Axle-to-crown: 380mm (650b); 400mm (700c) 100mm hub spacing Clearance for 650b x 42mm tires (with or without fenders) or 700c x 42mm tires (with or without fenders
| Steerer Type | Straight |
| Max Rotor Size (Fork) | 180 |
| Brake Mount (Fork) | IS Disc Brake 160 |
| Brake Type | Disc |
| Offset | 44, 47 |
| Material | Steel |
| Maximum Tire Clearance (Fork) | 650b x 41, 700c x 41 |
| Axle to Crown Length | 380, 400 |
| Front Axle | QR x 100mm |
| Front Hub Spacing (mm) | 100 |
| S.H.I.S. Stem Clamp Diameter | 28.6 |
| Color | Black, Skyrim Blue, Thorfrost White |
| Wheel Size | 650b, 700c |
| Defined Color | Black, Blue, White |
| Steerer Tube Length (mm) | 250, 330 |
| Crown Race | 30 |
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