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Living Life
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Discussion Starter #1
Replacing the rear brake rotor. The OEM part, or at least the part that was on the bike when I got it, has a button /disc in the middle of the rotor spokes.

Similar to what you see on a free floating rotor but this is a single button.The two front disks both have it also.

The new part has the correct part number but no button...? Other than that its identical.

Its a recently made part according to the date on the factory box.

Anyone know what function that little button has...?
 

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Living Life
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274 Posts
Discussion Starter #3 (Edited)

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Living Life
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274 Posts
Discussion Starter #4
Checked with the dealer.

The "semi-floating disk" part is obsolete and superseded with a plain flat disk. Hence the "B" in the part number.

Little apprehensive about installing what seems like a downgrade but unless you can locate some NOS, the plain disk is all that's available (per dealer parts dept)
 
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