Rims¶

• Original Surly Rat Ride: 80 mm internal width for 3.8”–4.7” tires.
• Surly Rabbit Hole: 80 mm (newer, tubeless-ready).
• Aftermarket:
• HED Big Deal (80 mm)
• Velocity Dyad (80 mm)
• Stan’s Flow CB7 (90 mm)
• Brake Rotor Clearance: Most 6-bolt mount calipers fit; check rotor size (180 mm recommended).