Box Three Chain Tensioner 1 Axle Hole - 10mm - 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.

The Box Three™ Chain Tensioner features a minimalist "lollipop" design, engineered for BMX race athletes who prioritize 100% efficiency and weight reduction. CNC-machined from 6061-T6 aluminum, this 37g tensioner provides a secure physical stop for your rear hub, ensuring zero wheel slip during high-torque gate starts. The single-hole slotted design offers 20mm of adjustment, allowing you to dial in your chainstay length for the perfect snap. By reinforcing the interface between your frame dropouts and axle, it maintains drivetrain alignment even when you are pulling maximum leverage against the bars and grips.

• Compatibility: 10mm (3/8”) Axles for BMX Race and Junior frames
• Bicycle Type: BMX Race, Expert, and Cruiser weight-optimized builds
• Material: 6061-T6 Aluminum with Stainless Steel ED Black hardware
• Adjustment: 20mm Wheel Position range for quick track-side tuning
• Weight: 37g (The lightest in the Box lineup for 15% less drivetrain mass)
• Design: Slotted "Lollipop" single axle position for clean, low-profile dropout protection
• Finish: Anodized with laser-etched graphics to match your stems and hubs