ENLEE M18 Aluminum Crank Cover For Bicycle Discs For IXF Crank Accessories(Black)

1. Material: CNC 7075 aluminum alloy2. M18: for Prowheel hollow one-piece discs, FS.A discs and the old FC-4500 and FC-5600 road discs and other road and mountain bikes3. M20: for Shimano kit, M400/M590/M596/M661/SLX/XT/XTR and other one-piece discs for road and mountain bikes4. Aluminum alloy material, CNC cutting, durable and wear-resistant, not easy to damage5. Lightweight design, compatible with strength and lightweight, make riding easier6. Standard tooth pattern, will not cause different thickness, tight fit7. Simple installation, easy to use8. Diameter:- M18: cap 28mm; screw 18mm- M20: cap 28mm; screw 20mm9. Weight:- M18: 7.8g- M20: 9.3g