Campagnolo Record 12 Chainring Teeth: 52 Speed: 12 BCD: 145 Bolts: 4 Outer Aluminum Black FC-RE952 CheckoutTitle=RockShox SIDLuxe Ultimate Flight Attendant Shock The narrow side allows clearance

The narrow side allows clearance for mud and debris which reduces friction

return them for another pair

Swift 6-pawl freehub and 5 degrees of engagement

}Magura 2-Finger Aluminum Lightweight Lever Blade - For MT4 2015+ Black

Campagnolo Record 12 Chainring Teeth: 52 Speed: 12 BCD: 145 Bolts: 4 Outer Aluminum Black FC-RE952 CheckoutTitle=RockShox SIDLuxe Ultimate Flight Attendant Shock The narrow side allows clearance12 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