Box One Oversized M30-M BMX Race Crankset - Black

Shipping Rates
Costs vary by order, destination, and bike inclusion. Rates for most EU countries: €0–€39. Other countries calculated by weight/volume. May change without notice.

Processing & Delivery
Ships in 1–2 business days (Mon–Fri). Tracking provided. Delays may occur due to weather, customs, or courier issues.

Returns & Exchanges
Return within 14 days; exchange within 5 days. Items must be new, unused, and in original packaging. Customer covers shipping unless agreed. Refunds processed within 5 days.

Damage & Corrections
Report damaged items or errors within 72 hours to info@race2podium.com. Replacement shipping covered if error is ours.

Engineered with Oversized Technology™, the Box One M30-M is the definitive BMX race upgrade for smaller riders. To prevent lateral deflection across the frame, Box scaled down the power of the M35 into a specialized 30mm 7075-T6 alloy spindle. This ensures that every ounce of pressure on your pedals is transferred directly to the rear hub without the penalty of surplus weight. The hollow-forged design reinforces high-stress zones while shedding mass from unloaded sections.

By optimizing the crank arm size and removing the stabilizer ring from the 104 BCD 4-bolt spider, Box has tuned the stiffness to match a junior racer's leverage. This provides an instant acceleration response through the chain and rims, helping young athletes maintain speed from the starting gate to the finish. Whether diving into a turn with high-grip tires or pulling on the handlebars, the M30-M offers pro-level feedback for lighter frames.

• Spindle: 30mm Alloy for maximum stiffness-to-weight ratio
• Bottom Bracket: External BSA 30mm included (adapter required for BB86/PF30 frames)
• Design: Top-load clamp with a self-extracting crank bolt system
• Ergonomics: 153mm Q-factor and 44.5mm chainline for perfect bike alignment

Crank Length	Statistical Weight	Chassis Integration
145 mm	498g / 17.6oz	Ultralight for Micro/Mini fork setups
150 mm	509g / 17.9oz	Ideal for Junior stem and seat heights
155 mm	518g / 18.3oz	Expert-level torque for 20" tubes and spokes

Tech Tip: Do not use pedal washers; the M30-M interface is precision-matched for direct contact with pedal threads. Ensure your grips are tight and your chain is tensioned for the holeshot!