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ROTOR Shimano Chainring Bolt Covers

Josh Matthew May 23, 2024


Complete the look of your Shimano 11- or 12-speed crankset!

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ROTOR Shimano Chainring Bolt Covers

The ROTOR Shimano Chainring Bolt Covers are made specifically for mounting a ROTOR (or another non-Shimano) chainring to a Shimano Ultegra R8000, R8100, R9100 or R9200 crankset. These bolts cover the small step down between the crankset and the chainring. This greatly improves the look of your Shimano crankset!


  • Ultegra 8000: Compatible with Ultegra 8000 and R8050 Di2
  • Ultegra 8100: Compatible with Ultegra 8100 and R8150 Di2
  • DURA-ACE 9100: Compatible with DURA-ACE 9100 and 9150 Di2
  • DURA-ACE 9200: Compatible with DURA-ACE 9200 and 9250 Di2


  • Weight: 13 grams - 11-speed covers | 16 grams - 12-speed covers
  • Material: 7075 T6 aluminum
  • Ultegra 8000 bolt length: 6.1 mm
  • Ultegra 8100 bolt length: 5.8 mm
  • DURA-ACE 9100 bolt length: 6.4 mm
  • DURA-ACE 9200 bolt length: 6.45 mm

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