Sram SRAM Chainring Track 48T 5 Bolt 144 mm BCD (Omnium) Aluminium Black, 11.6215.197.100
- For Track and/or Singlespeed (road) applications - Track/Omnium (for 1/8" chains): 5mm thick, machined and hard anodized 7075-T6 aluminum construction (2012+ black replacing 2009-2011 'TGA' tungsten-grey color) - Courier/S-series (for 3/32" chains): 3mm thick, machined aluminum construction with black hard-anodized surface treatment
