BSD Substance Bottom Bracket
Best durable bottom bracket for BMX riders upgrading their drivetrain.
A comprehensive bottom bracket kit designed to keep cranksets spinning smoothly. It includes all the necessary hardware and high-quality sealed bearings to ensure a reliable, low-maintenance setup for demanding riding styles.
$30.95
at
Stacked BMX Shop
Who it's for
- Riders needing long-lasting, smooth performance in harsh conditions
- Street and park riders demanding proven, durable hardware
- Mechanics wanting a hassle-free, precise installation experience
Who should skip it
- Budget-conscious riders seeking the most affordable replacement option
- Cyclists with frames requiring non-Mid bottom bracket standards
- DIY mechanics who prefer servicing bearings over replacing them
Performance breakdown
Bearing Durability
Sealed bearings handle heavy impacts and daily abuse with ease.
Spindle Compatibility
Versatile sizing options cover almost every standard BMX crank setup.
Installation Ease
Comprehensive kit includes all necessary spacers for a straightforward install.
Rotational Smoothness
Internal alloy tube ensures consistent, drag-free performance under load.
Build Quality
CNC-machined components offer a robust feel and long-term reliability.
Aesthetic Finish
Anodized aluminum cones provide a clean, sharp look for any build.
Key Specs
Outer size
Mid
Inner size
19mm, 22mm or 24mm
Tube spacer material
6061 T-6 aluminum
Cone material
6061 T-6 Aluminum
Non drive side cone thickness
10mm
Drive side cone thickness
5mm
Spacers
6 x 2.5mm
Component Application Area
Drivetrain
Quantity Per Pack
1
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