It's a Direct Mount chainring so please use the original lockring to mount it on the crank
it seems that all tyre sealants can stain
Bottom Bracket- Eturnity ET52
Made for roof top
The Shimano 105 FC-5700 10-speed Crankset is designed to work perfectly with the other front drivetrain components (HyperDrive)
Blackbearing D3 Headset Bearing HSN-82079090 It's a Direct Mount chainringBlack Bearing, Headset Bearing D3 40x52x8mm 45 45 Specifications I. D. (mm) : 40 O. D. (mm) : 52 Depth (mm): 8 Chamfer: 45 45 Bearing Type : Cartridge Additional Info Country of Origin: France Imported By: VITTI Trading LLP , #2471 , 25th Cross, 17th Main , Banashankari 2nd stage , Bangalore 560070 , Karnataka , India. Net Quantity: 1N Customer Care Address: 291, 10 Main, 5 Block, Jayanagar, Bangalore 560041. Ph: (080)47183232, Email: