I have a 1980 flt and I am wanting to go back to the comfort flex seat and my question is what is the difference between the suspensions my book calls for part # 52510-80 and all I can seem to find is # 52510-77

 

Generally ... a part number with an extension 52510-77 ( 77 is the extension ) is a production date ... 52510-80 ( 80 being the change/update ) is a running change in the part number which should be compatible

 

OK cool....thank for the info Larry

 

Hope it works out for you.

 

Thanks again Larry....found some pictures online and it looks like the mounting bases are a little different...

 

Which seat do have now? Interested in selling it?

 

I don't think so...the 52510-77 is for an FLH...and they are common as dirt...got one in the garage. The FLT frame is a completely different animal...I don't believe an FLH seat would be a "bolt on" without mods. I have never seen an FLT with a comfort-flex seat...nor can I find one in a google image search...tho I lost count of how many FLH's had the seat...if you can find one post it please.

 

the 80 81 82 83 FLT had a seat that was flat on top of the frame and its different then the later evo seat that side mounts - the FLH like tom is talking about came sprung

 

This^^^ Is the way of it...

 

I know this thread is a year and a half old, but did OP ever get the Comfort Flex on? I would like to do the same.