Campagnolo Record 12 Chainring Teeth: 52 Speed: 12 BCD: 145 Bolts: 4 Outer Aluminum Black FC-RE952 CheckoutTitle=RockShox SIDLuxe Ultimate Flight Attendant Shock Wolf Tooth 107 BCD Chainrings

Wolf Tooth 107 BCD Chainrings for SRAM Cranks are compatible with SRAM gravel and road cranks that use the 107 BCD spider

} Specifically designed to install and remove BB386EVO/MegaEvo threaded bottom brackets

Swift 6-pawl freehub and 5 degrees of engagement

The Wolf Tooth Direct Mount Chainrings for Bosch E-Bike Motors are compatible with all Boost and Super Boost bikes that use the Bosch Gen 4 E-Bike Motor

return them for another pair

Campagnolo Record 12 Chainring Teeth: 52 Speed: 12 BCD: 145 Bolts: 4 Outer Aluminum Black FC-RE952 CheckoutTitle=RockShox SIDLuxe Ultimate Flight Attendant Shock Wolf Tooth 107 BCD Chainrings12 speed Record Super Record chainring Surface treatment improves durability 145 BCD outer rings are specific to Record or Super Record, while 112 BCD inner rings are shared between the two groups TECH SPECS Primary Color Black Chainring Comp. 36 52 Narrow Wide Design No Position Outer Teeth 52 BCD 145 Chainring Bolts 4 Speed 12 Material Aluminum