absoluteBLACK Oval Brompton 1x Chainring – 50T (130/5 BCD) Black

absoluteBLACK Premium 1X 130/5 bcd oval chainrings designed specifically for original Brompton cranks. Perfect choice for 1X narrow wide folding bike setup. Delivered with mounting bolts for your convenience. Oval chainring helps to pedal smoother, get less tired and reduce knee pain.

Size (Mass +/-1g): 50T (89g) comes with 4 AL bolts (weight given for chainring only)
Color: Black
Compatibility: Brompton 130/5 cranks specifically.
Material: CNC machined 7075 Txxx Aluminum. Long-lasting construction
Finish: Type II anodizing
Ovality: 10.5% ; Timing of 112 after TDC (top dead center) – Patent Pending