S&M Widemouth Fork (20", 22")

Product Overview

The S&M Widemouth Fork is a full chromoly BMX fork designed with an enlarged crown radius to accommodate modern 2.45" tires without rubbing. Built with double-butted, tapered legs and a one-piece CNC-machined steerer tube, it provides strength and precision for street, park, and transition riding. Available in 20" and 22" wheel sizes with traditional 33mm offset for balanced handling.

Key Features

• Increased tire clearance – Widemouth crown design with larger radius provides proper clearance for 2.45" tires, preventing rub during hard landings and compression
• Double-butted, tapered chromoly legs – 4130 chromoly construction with butted tubing places material where strength is needed while reducing excess weight
• One-piece CNC-machined steerer tube – Integrated bearing race machined from solid 4130 chromoly eliminates weak points found in pressed race designs
• Extruded 6061 steerer tube insert – Aluminum reinforcement inside steerer tube adds rigidity and prevents deformation under stem torque and impact loads
• Laser-cut 3/8" dropouts – Precision dropouts ensure accurate wheel alignment and secure axle retention for reliable brake and hub performance
• 33mm offset – Traditional rake angle provides stable, predictable handling across all riding styles without being overly twitchy or sluggish
• 4Q post-weld heat treatment – Baked heat treatment process relieves stress from welding and restores material properties for maximum strength
• M24 x 1.5 compression threading – Standard top cap threading with 6mm allen slot for integrated headset compression systems

Technical Specifications

• Leg material: Double-butted, tapered 4130 chromoly
• Steerer tube: One-piece CNC-machined 4130 chromoly with integrated bearing race
• Steerer tube insert: Extruded 6061 aluminum
• Steerer tube length: 173mm
• Dropouts: Laser-cut 3/8" slots
• Offset: 33mm
• Compression: M24 x 1.5 thread with 6mm allen slot
• Axle to crown height: 320mm (20"), 345.9mm (22")
• Tire clearance: 2.45"
• Weight: 1.99 lb / 0.90 kg (20"), 2.35 lb / 1.06 kg (22")
• Heat treatment: 4Q baked post-weld
• Wheel size: 20" or 22"

Compatibility and Ideal Use Cases

This fork fits frames with integrated or internal headsets (1-1/8" steerer tube diameter) and 3/8" front axles. The 173mm steerer tube length accommodates most BMX frames and headset stack heights, but verify your frame's requirements before ordering (steerer can be cut down but not extended). The 20" version works with standard BMX frames, while the 22" version fits BMX cruiser frames. Ideal for riders running 2.3"-2.45" tires who need guaranteed clearance, or anyone seeking a durable chromoly fork with traditional geometry for street, park, dirt, or transition riding. The 33mm offset suits riders who prefer stable, confidence-inspiring handling over quick steering response.