This is the Larger of 2 Cover Rubber Seals the mounts between the Engine and Inner Clutch Cover.
U-JOINT with (4) Outer Circlips
This U-Joint Bearing Cap is 22mm in Diameter and 58mm End to End.
Please Measure the Diameter before Buying.
If you need the 22mm Joint that has Clips on the Inside of each Yoke Finger, part # 26415-010-0000
or use this link; https://motorcycledoctor.com/product/22mm-u-joint-cross/