Surly Midnight Special Frameset – 650b/700c, Steel, Hi-Viz Black, 40cm

Description

Explore the Surly Midnight Special Frameset – the ultimate steel gravel bike frame designed for versatile riding and all-day adventures. Crafted from high-quality 4130 Cro-Moly steel, this frameset offers excellent durability, comfort, and performance on both paved roads and rugged off-road terrains. Its sleek Hi-Viz Black finish adds a stylish edge, making it a perfect choice for riders seeking a reliable, stylish, and capable bike frame.

Materials & Construction:

Constructed from 100% Surly 4130 Cro-Moly steel, known for its rugged strength and impressive fatigue resistance, the Midnight Special frameset features a double-butted main triangle that enhances strength while reducing weight. The steel fork, with its 1-1/8″ threadless CroMoly construction, provides superior ride comfort and tuning stability essential for mixed surface riding.

Performance & Engineering:

Designed for versatility, this frameset comfortably accommodates 650b+ tires up to 27.5 x 2.35″ (without fenders) and 700c tires up to 38mm with fenders, making it ideal for gravel adventures, bikepacking, and urban commuting. Flat-Mount disc brake compatibility ensures reliable stopping power in various conditions, while the generous tire clearance and integrated mounts for racks, fenders, and water bottles enhance utility and practicality for multi-day trips or daily commuting.

Components & Technology:

Featuring a sturdy 44mm head tube, the Midnight Special frameset allows for responsive handling and customization. The 12mm Thru-axle design (rear: 142mm; front: 100mm) ensures stiff, secure wheel attachment for confident riding over rough terrain. With compatibility for disc brake systems and multiple mounting points, this frameset is engineered for modern performance components.

Style & Use Case:

The Midnight Special is a perfect blend of style and function, with its sleek Hi-Viz Black finish suitable for both urban environments and rugged trail rides. Its versatile design makes it an excellent platform for gravel grinding, bike touring, or overland adventures, providing comfort and confidence on long-distance rides and challenging surfaces.

Innovative Features & Differentiators:

Surly’s signature durability combined with modern engineering makes this frameset stand out. Its compatibility with 650b+ and 700c wheels, ample tire clearance, and full rack and fender mounts give riders the flexibility to customize their bike for various riding styles and conditions. Whether you’re upgrading your existing build or starting a new adventure bike, the Midnight Special frameset is designed to evolve with your needs.

Key Specifications:

– Material: 4130 Cro-Moly Steel with double-butted main triangle

– Fork: Steel, 1-1/8″ threadless CroMoly

– Tire Clearance: 27.5×2.35″ (without fenders), 700c x 38mm (with fenders)

– Brake Compatibility: Flat-Mount Disc

– Axle Compatibility: 12mm Thru x 142mm (rear), 12mm Thru x 100mm (front)

– Wheel Size Options: 650b+ and 700c

– Water Bottle & Mounting Points: 3 cage mounts, rack and fender mounts

– Finish: Hi-Viz Black

Upgrade your bike with the Surly Midnight Special Frameset-built for endurance, equipped for adventure, and designed to keep you going mile after mile.

• Durable 4130 CroMoly steel frame construction featuring a double-butted main triangle for enhanced strength, flexibility, and weight savings, ideal for rugged road plus adventures.
• Designed with a versatile 40cm Hi-Viz Black finish, this frameset offers excellent visibility and style, making it perfect for both urban commuting and long-distance gravel exploration.
• Incorporates advanced flat-mount disc brake technology for superior stopping power across various terrains, ensuring confidence on potholes, gravel, and uneven pavement.
• Compatible with 650b+ and 700c wheels, equipped with generous tire clearance (up to 2.35 on 650b and 42mm on 700c), providing exceptional ride comfort and versatility for all-road conditions.
• Features a 44mm head tube and rack, fender, and water bottle mounts, allowing for expanded packing options and customization for endurance rides or daily commuting.