Promax 4-Bolt Chainring - 44t 104 BCD Black CheckoutSpec=2-P Bolt Mount Diameter 8 Frame

Bolt Mount Diameter 8 Frame Mount Width 14

}Shimano GRX FC-RX810-2 Crankset - 170mm 11-Speed 48/31t 110/80 BCD Hollowtech II Spindle Interface Black

Signature custom-cast dropout with replaceable derailleur hanger signature lugged fork crown and custom fork ends integrated seat collar pantographed bottom bracket shell reinforced bottle bosses for three bottle cages

Rim Width (Internal) 22 Defined Color Black Rear Axle QR x 135mm Rear Axle 12mm Thru x 142mm Wheel Size 650b ISO Diameter 584 / 650b / 27

}Park Tool 691 Right Hand Threaded English Tap

Promax 4-Bolt Chainring - 44t 104 BCD Black CheckoutSpec=2-P Bolt Mount Diameter 8 FramePromax 4 Bolt Chainring 44t 104 BCD Black. Machined from high end aluminum Promax 4 bolt 104 BCD chainrings are designed to handle the torque and stress of modern BMX racing and are fully capable in other single speed applications. CNC Machined from high grade 6061 T6 series aluminum for high strength while providing weight savings Designed to be used with most cranksets and spiders that utilize a 4 bolt 104 BCD chainring TECH SPECS Color Black Ring