39T

 Precision CNC machined AL7075/T6 Laser etched logo with CNC machined silver detail 130mm 5-bolt 39T 7075AL 10s Triple Black/Silver 10sp StandardUPC/EAN/G...

 Precision CNC machined AL7075/T6 Laser etched logo with CNC machined silver detail 130mm 5-bolt 39T 7075AL 10s Triple Black/Silver 10sp StandardUPC/EAN/GTIN: 400310008428

 Precision CNC machined AL7075/T6 Laser etched logo with CNC machined silver detail 130mm 5-bolt 39T 7075AL 10/11s Black/Silver 10/11sp StandardUPC/EAN/GT...

 Precision CNC machined AL7075/T6 Laser etched logo with CNC machined silver detail 130mm 5-bolt 39T 7075AL 10/11s Black/Silver 10/11sp StandardUPC/EAN/GTIN: 400310065759

 6061-T6 alloy construction 8 and 9-speed compatible Silver anodized finish CNC Made in the U.S.A. 130mm 5-bolt 39T 6061-T6 Silver 8/9sp StandardUPC/...

 6061-T6 alloy construction 8 and 9-speed compatible Silver anodized finish CNC Made in the U.S.A. 130mm 5-bolt 39T 6061-T6 Silver 8/9sp StandardUPC/EAN/GTIN: 072774216550

 6061-T6 alloy replacement rings 8, 9 and 10-speed compatible Black anodized with silver CNC machined teeth Made in U.S.A. 130mm 5-bolt 39T Non Ramped Black/Si...

 6061-T6 alloy replacement rings 8, 9 and 10-speed compatible Black anodized with silver CNC machined teeth Made in U.S.A. 130mm 5-bolt 39T Non Ramped Black/Silver 8/9/10sp StandardUPC/EAN/GTIN: 072774216789

 Genuine Sram replacement rings for Road and Sram Red cranksets Not compatible with new Sram hidden bolt style cranks 110mm=Compact 130mm=Standard Road  130mm...

 Genuine Sram replacement rings for Road and Sram Red cranksets Not compatible with new Sram hidden bolt style cranks 110mm=Compact 130mm=Standard Road  130mm 5-bolt 39T 3mm Black 10/11sp StandardUPC/EAN/GTIN: 710845665875

 Genuine Sram-Red replacement rings 110mm=Compact 130mm=Standard Road  130mm 5-bolt 39T Black 11sp StandardUPC/EAN/GTIN: 710845729904 ...

 Genuine Sram-Red replacement rings 110mm=Compact 130mm=Standard Road  130mm 5-bolt 39T Black 11sp StandardUPC/EAN/GTIN: 710845729904

 7075 alloy replacement rings 10 speed compatible 130mm 5-bolt 39T Black/Silver 10sp StandardUPC/EAN/GTIN: 4710944245226 ...

 7075 alloy replacement rings 10 speed compatible 130mm 5-bolt 39T Black/Silver 10sp StandardUPC/EAN/GTIN: 4710944245226

 10 speed 7075 alloy replacement rings 130mm 5-bolt 39T Alloy Black/Silver 10sp StandardUPC/EAN/GTIN: 4710944237863 ...

 10 speed 7075 alloy replacement rings 130mm 5-bolt 39T Alloy Black/Silver 10sp StandardUPC/EAN/GTIN: 4710944237863