110/130 ST PRO CXR1 48T 1/8" Narrow/Wide Chainring

110/130 BCD - 5 Bolt 48 tooth x 1/8" (Track or Single-Speed Drivetrains) Alternating "Thick-Thin" tooth profile for chain retention- the latest technology Sharktooth - No Chain Drop tooth profile for all conditions chain retention Lightweight Aircraft Aluminum Alloy Full CNC machined construction Teflon coated surface treatment provides quiet and friction free service Black anodized finish Proudly Made In-The-USA! Weight: 175g