Author Topic: Not Your Father's 400 - Honda CBR400RR  (Read 4529 times)

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Offline The Red Scourge

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Re: Not Your Father's 400 - Honda CBR400RR
« Reply #45 on: July 26, 2022, 10:05:17 AM »
What did the brake caliper pistons look like? Was there any pitting on them? Were you able to find new seals too?

I decided not to replace the pistons at this time.  I'm planning to when I get the powder coated in the future.  They had some pitting, but just on the exposed area, nothing that touches the seals.  Replacement seals are available, but more of a pain in the ass than anything else.  Those same Nissin calipers got used for a lot of Honda sport bikes in the late 80's/early 90's (as well as a lot of others).  The thing that was tough is that no one seems to use a model number for the calipers (other than Nissin), so you have to search by bike model.  First generation CBR600 and CBR1000's used the same calipers, so that's what I used for the seals.  Different part numbers from Honda, but same dimensions.  I just don't know why they had to make it difficult.
'76 Yamaha RD400C
'71 Kawasaki G3SS
'88 Honda CBR400RR
'90 Yamaha FZR400/600 hybrid