Shimano Deore 12-Speed CS-M6100-12 10-51t Silver For Hyperglide+ Cassette Bike Brand_Felt The Air Bleed Valve lets

The Air Bleed Valve lets you make fine adjustments to your air pressure

ANT+ USB and BlueGiga USB sold separately

Easily penetrates chain pins and coats pivot points

5mm spacers

Shimano Deore 12-Speed CS-M6100-12 10-51t Silver For Hyperglide+ Cassette Bike Brand_Felt The Air Bleed Valve letsThe Shimano CS M6100 12 speed cassette is designed for use with Deore M6100 drivetrains. Use with Hyperglide+ chain All steel cogs Designed for single front chainring setup Micro Spline interface Color: Silver Cassette Body Type: Shimano Micro Spline Drivetrain Speeds: 12 Defined Color: Silver Cassette Cogs: 10 12 14 16 18 21 24 28 33 39 45 51 Range: 10 51