SRAM RED X-Glide 10-Speed Chainring (110 BCD)
Details
Replace worn out chainrings or change out gearing with SRAM's RED X-Glide Chainrings. These solid rings are crafted from aluminum using SRAM's X-Glide tooth profiles for quick, responsive shifting. If you have a SRAM RED 10-speed Exogram compact crank, these are the rings for you. RED Exogram cranks have a hidden 5th bolt behind the crank arm
To choose the correct chainring, 1) determine the number of teeth (they're usually marked, or simply count them), 2) determine how many bolt holes there are (usually 4 or 5), and 3) determine the Bolt Circle Diameter (BCD; see diagram).
Common BCDs include:
130mm (Shimano Road)
135mm (Campagnolo Road)
110mm (Compact Road)
and
104mm, 94mm, and 64mm (Mountain)
Finding the number of teeth and bolts holes is easy. If you don't know your chainring's BCD, measuring it is tricky. So, instead, measure the exact distance (center to center) between 2 adjacent bolt holes. Then find that number on the correct chart below to determine the BCD for your chainring.
| BCD Chart for 5-bolt Chainrings | |
| Bolt to Bolt (measure center to center) | Bolt Circle Diameter (BCD) |
| 32.9mm | 56mm |
| 34.3mm | 58mm |
| 43.5mm | 74mm |
| 55.4mm | 94mm |
| 64.7mm | 110mm |
| 76.4mm | 130mm |
| 79.5mm | 135mm |
| 84.6mm | 144mm |
| BCD Chart for 4-bolt Chainring | |
| Bolt to Bolt (measure center to center) | Bolt Circle Diameter (BCD) |
| 41mm | 58mm |
| 45.3mm | 64mm |
| 48.1mm | 68mm |
| 73.6mm | 104mm |
| 79.2mm | 112mm |
If you have any questions concerning chainring compatibility, please contact us.
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