Shimano Spares WH-R501 left hand lock nut unit

This lock nut unit is designed for the WH-R501 rear wheel, but it can also be used on the following:

Hubs:

• Shimano FH-RS400

Wheels:

• Shimano WH-R500-R
• Shimano WH-R500-A-R
• Shimano WH-R501-A-R
• Shimano WH-R501-30-R
• Shimano WH-RS010-R
• Shimano WH-RS100-CL-R

These are classed as an "A" match.

If this lock nut unit is unavailable, you can also use the unit from the Shimano WH-RS11-R wheel. This is classed as a "B" match.

"A" match: indicates that the parts are the same (material, finish, size & appearance).
"B" match: indicates that the parts are usable, but may be different (materials, finish, size & appearance).