Bearings are precision custom 6805 16 ball bearings filled with Phil Wood Grease and utilising a triple wiper seal to keep the dirt out and grease in

improves shifting and decreases drivetrain noise

What's in the box: One SM-RT66 6 Bolt Rotor with 6 rotor bolts

accurate gauge

Prevents the formation of foam and inhibits corrosion

Wolf Tooth 4 Bolt Alloy Drop-Stop Chainring - 110 BCD - Asymmetrical Shimano - Round - Black - 40T PDP|PLP|Brake Rotor Type Bearings are precision custom 6805If you are in need of a 4 Bolt Chainring, chances are Wolf Tooth have an option to suit. Made from a high grade 7075 T6 aluminium Wolf Tooth's Drop Stop Chainrings are one of the best performing and longest lasting wide narrow chainring options on the market. Chain Retention Technology: Drop Stop technology is Wolf Tooths patented wide narrow chainring design. The wide side of the tooth has maximum contact on the drive side which spreads the load and