Profile Racing American Hop Up Bottom Bracket Cups
Best durable adapter for vintage BMX frame restorations.
These precision-machined cups offer a lightweight, durable upgrade for standard American bottom bracket shells. They provide a clean, reliable interface for your crankset, allowing you to select the specific bearings that match your riding needs.
$39.99
at
Profileracing
More Bottom Bracket options
Profile Racing Bottom Bracket
$41.99
Profile Internal Euro Bottom Bracket
$69.95
Profile Racing Hop Up American Bottom Bracket
$49.95
Profile Racing Press Fit Bottom Bracket
$45.99
Profile Racing Euro External Bottom Bracket
$71.99
Profile Racing American Retro Bottom Bracket
$41.99
Profile Racing Euro Inboard BMX Bottom Bracket
$66.99
Who it's for
- Aggressive riders seeking long-lasting components for high-impact street or park sessions
- Vintage frame owners wanting to upgrade to modern high-performance cranksets
- Mechanical perfectionists who prioritize smooth rotation and drivetrain efficiency
Who should skip it
- Weight-conscious racers looking to minimize every gram on their build
- Home mechanics without access to professional-grade bicycle shop tools
- Owners of modern BMX frames designed for integrated bearing systems
Performance breakdown
Material Durability
2024 aluminum offers exceptional strength-to-weight ratio for aggressive BMX riding.
Machining Precision
Tight tolerances ensure a seamless, wobble-free fit within the shell.
Installation Versatility
Open-bearing design allows riders to customize their specific bearing setup.
Weight Efficiency
Lightweight construction sheds unnecessary mass without sacrificing structural integrity.
Aesthetic Finish
Clean, refined look elevates the visual appeal of any bike build.
Compatibility Range
Perfectly bridges the gap between vintage frames and modern cranksets.
Key Specs
Material
2024 Aluminum
Bottom Bracket Standard
American
Weight
226.8 grams
Included Parts
2 cups
Know before you buy
Still have a question?
Ask Metto anything about the Profile Racing American Hop Up Bottom Bracket Cups before you decide.
