Originally Posted by TwiZted Biker

When the piston size increases but the amount of fluid being pushed to activate it doesn't you get less travel on the piston with the same volume of oil at the lever, will affect clutch throw and maybe shifting depending on individual bikes, wear and existing adjustments. Same premise as changing brake calipers with bigger pistons, needs a mastercylinder change to compensate, all about volume of fluid.

Love the idea but we'll see as some feedback comes in.

Originally Posted by Gamma742

That's a good point and you are absolutely right. I went from a 2 piston brake caliper on a slide pin to a 4 Piston Brembo and with the original master cylinder the front brake lever came all the way back to the throttle grip and the bike only slowed down. I needed a bigger Master Cylinder.

Originally Posted by lp

Makes me wonder if you could use the 2013 and below OEM slave cylinder/actuator (p/n:37200023). It too has a larger piston. It's 128.86 on Surdyke.
I understand it requires a cable change though and they are proud of it at 177.03 list. Probably could flare on a new end on your cable though...or go aftermarket.

Originally Posted by Firenailer

I’m looking for a little help. Would anyone here have the original HD Slave Cylinder part that they’d be willing to sell? I need one for a 2017 FLHXS Street Glide Special that I’m working on.

PM if you’ve got one, thanks!

Originally Posted by aviscomi

I've got mine, but is pre-recall.