Riderace Bicycle Crank Arm Fixing Bolt M18 M19 M20 Bolt For Hollowtech Crank Bolt Cap

Features: 

1.CNC aluminum alloy mountain bike color crank cover BB central axis screw sprocket specifications.

2.Aluminum alloy CNC machining, precision & strength, much better than the original plastic screws.

3.Various colors, suitable for personality modification.

Specifications:

Size: M18/M19/M20

Material: Aluminum Alloy

Weight:

M18:About 7g

M19:About 8g

M20:About 8.5g

Color:Colorful/Black/Red/Blue/Sliver/TItanium/Yellow/Green

M18 threaded screws are suitable for Haomeng hollow one-piece chain ring FS.A chain ring and the old FC-4500 and FC-5600 road chain ring, etc.

If you are not sure about the specifications, please measure by yourself

M19 threaded screws are suitable for IXF, LEBYCLE and other brands of hollow integrated crankse.

If you are not sure about the specifications, please measure by yourself

M20 crank cover screws are suitable for Shimano kits such as: M4000, M590, M596, M661, SLX, XT, XTR, etc.

If you are not sure about the specifications, please measure by yourself