Primo Simmons Sprocket
Best lightweight upgrade for BMX riders seeking durable, high-performance drivetrain components.
This is a masterclass in minimalist BMX engineering, stripping away excess weight without sacrificing the structural integrity needed for hard riding. By prioritizing a featherlight CNC-machined build, it sacrifices universal crank compatibility for a streamlined, high-performance setup that feels practically invisible on your bike.
$59.99
Who it's for
- Aggressive riders needing gear that withstands heavy, daily abuse
- Performance cyclists seeking maximum efficiency during high-torque pedaling
- Weight-conscious riders wanting a responsive, agile bike setup
Who should skip it
- Budget-focused riders prioritizing value over premium material construction
- Cyclists using standard components or mixed-brand drivetrain setups
- DIY mechanics preferring easy-to-source parts and simple maintenance
Performance breakdown
Weight Efficiency
Featherlight 40g build keeps your front end agile for technical tricks.
Structural Integrity
CNC-machined 7075 aluminum handles heavy impacts without bending or warping.
Mounting Security
Spline drive system eliminates slippage for a rock-solid, reliable connection.
Compatibility
Strictly limited to 22mm 48-spline spindles, requiring specific drivetrain setups.
Aesthetic Appeal
Clean, signature styling adds a professional touch to any BMX build.
Installation Ease
Simple spline interface makes swapping or maintenance quick and straightforward.
Key Specs
Material
CNC 7075 aluminum
Fits
22mm / 48 Spline Spindles
Weight
1.4oz / 40g
Mounting Type
Spline Drive
Know before you buy
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Ask Metto anything about the Primo Simmons Sprocket before you decide.