S&M X-Man Guard Sprocket (25T, 28T)

The S&M X-Man Guard is a CNC-machined sprocket designed for riders who grind rails, ledges, and pegs where sprocket protection and durability are essential. Made in the USA from billet 6061-T6 aluminum, this sprocket features integrated guard teeth around the perimeter to prevent hang-ups during grinds while protecting the sprocket teeth from damage. Available in 25T and 28T sizes with compatibility for 19mm, 22mm, and 24mm spindles through included steel hat washers.

Key Features

• Integrated Guard Design – Extended material around the sprocket perimeter creates a protective barrier that prevents the sprocket from catching on rails and ledges during grinds; allows the guard to contact obstacles instead of the drive teeth
• CNC-Machined Billet 6061-T6 Aluminum – Machined from solid aluminum block rather than cast, creating stronger material structure and tighter tolerances; T6 heat treatment maximizes hardness and wear resistance
• Made in USA – Domestic manufacturing ensures quality control and supports American production
• Multiple Spindle Compatibility (19mm, 22mm, 24mm) – Includes 19mm and 22mm steel hat washers to properly center the sprocket on different spindle sizes; 15/16″ (24mm) center bore accommodates 24mm spindles directly
• Two Crank Mounting Holes – Dual mounting points provide secure attachment to crank arms; standard spacing works with most BMX cranks
• 1/8″ Teeth – Standard BMX chain width ensures compatibility with all single-speed 1/2″ × 1/8″ BMX chains

Technical Specifications

• Material: 6061-T6 aluminum, billet CNC-machined
• Tooth Count Options: 25T, 28T
• Chain Compatibility: 1/8″ teeth (1/2″ × 1/8″ chain)
• Center Bore: 15/16″ (24mm)
• Spindle Compatibility: 19mm, 22mm, 24mm
• Included: 19mm and 22mm steel hat washers
• Mounting: 2 crank bolt holes
• Manufacturing: Made in USA
• Color Options: Four colors available 

Compatibility and Ideal Use Cases

This sprocket fits cranks with standard two-hole sprocket mounting patterns and works with 19mm, 22mm, or 24mm spindles using the appropriate hat washer or direct mount. Best suited for street riders who grind rails, ledges, and pegs where sprocket protection is critical. The guard design allows riders to grind drive-side without worrying about sprocket damage or hang-ups that can stop momentum or cause crashes. The 25T option provides quicker acceleration and easier technical riding, while the 28T offers higher top speed and easier sustained pedaling. Made-in-USA construction and billet aluminum machining make this sprocket appropriate for riders who demand quality and durability. Not necessary for riders who don't grind or who run their chain on the non-drive side.