The aluminium bike crown with 4 screws Promax, specifically designed for BMX races, delivers optimal performance thanks to its high-quality machining.
Machined from high-quality aluminium, the 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.
| Brand | Promax |
| Supplier reference | PRMCHAR009 |
| Color | black |
| Color | Black |
| Quantity per product | 1 |
| Stability | BMX |