Promax 4-Bolt Chainring - 45t 104 BCD Black. Machined from high-end aluminum Promax 4-bolt 104 BCD chainrings are designed to handle the torque and stress of modern BMX racing and are fully capable in other single speed applications.CNC Machined from high
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Promax 4-Bolt Chainring – 45t 104 BCD Black. Machined from high-end aluminum Promax 4-bolt 104 BCD chainrings are designed to handle the torque and stress of modern BMX racing and are fully capable in other single speed applications.
| Color | Black |
| Ring Position/Type | Single |
| Tooth Count | 45 |
| Round or Oval | Round |
| Drivetrain Speeds | Single Speed 3/32″ |
| Chainring BCD | 104 |
| Material | Aluminum |
| Defined Color | Black |
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