My front left caliper has a slow leak that I would like to get fixed. There are a bunch of used 00-07 calipers on ebay for about what I would pay for a rebuild kit for just one of the front calipers on mine. Does anyone know if I can put those later model calipers on my 90 FLHTCU? The pads are clearly different, but the bolt holes look close.

 

mjunk1,
You would have to change your fork sliders in order to put twin cam calipers on it, it's a drag because the twin cam calipers are alot better than 84-99 single piston calis.

 

Fab up adapters or maybe some company already has and is waiting for you to call.
Will your master cylinder support 2 four piston calipers?

 

I saw a set with the M/C included, but I'll have to check on some adapters. Not sure I want to fab something as important as brakes! I might fab myself right into a pine box!

 

mjunk1,
Re: the pine box comment.
Uh yeah, if you don't have complete confidence you can make the necessary pieces sturdy and attain proper alignment, caliper to rotor, its probably best to pass on that option.
I have tried bidding on those newer style take-off brake components but somebody always outbids me. But I am a cheap bastard (and, I think, proud of it).

 

I replaced my lowers.. But, you could just go this route..

 

OK, so using the adapters HGM clued me in to - thanks HGM - are you saying my original master will not support the 4 piston calipers?

 

I'm not 100% on this for your bike. But, on my '94, I installed >'96 controls with a new master. Both were 5/8" bore and it worked fine. I then changed my lowers, updated to >'00 model, and installed the dual piston caliper from a >'00 Softtail. No problems, worked great and would do it again in a heartbeat. Much better stopping feel than the single piston caliper the bike was born with. The key is making sure that the bike that donates the caliper and your's both use the same bore master cyl.

 

No, I can't say that it is not compatible, I was asking you if you knew. I know the single caliper M/C for the four piston calipers is a 9/16" bore and the M/C for the dual four piston calipers is a 11/16" bore. I don't know what bore your '90 M/C is and I don't know if there is a stroke difference between the '90 M/C and the '96-up M/C's (I kinda doubt there is a stroke difference). I just wanted to make sure you are gonna use a M/C that has sufficient capacity for dual four piston calipers.
Good luck on this, it ought to be a very nice upgrade for your bike.

 

I'm going to have to think this through a bit. We have some really good brake shops around here that I may go bum some free advice from before getting too far out there. Seems like I might just be sure I match the MC to the calipers just to be sure. If I can get them cheap enough then it seems as though it would be a smart upgrade.

Today I had to stop fast on brand spankin' new asphalt in the mountains between Asheville and Knoxville. The rear locked up and didn't even squeal! I just slid along on that fresh asphalt, then rear end started comin' around so I thanked it for wanting to get a better view and asked it to get back where it belonged. I wasn't worried as there was plenty of room to ease over and avoid any contact, but I laughed my butt off that nothing was squealing. Sang "Slip Slidin' Away" for the next few miles.