Box Three Cantilever Brake Booster from Japan
Box Three booster spring for cantilever brakes on fat bikes, increasing mechanical advantage. HTS 8714.94.30.80 as cantilever brake parts. Stainless steel.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
Import Tips
• Spring tension specs
• Fat bike frame proof
• Loose hardware risk