Brake issue ASAP
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Intermediate
Joined: Jun 2012
Posts: 25
Likes: 0
From: Houston
Brake issue ASAP
Hey all,
Ordered a handle bar control kit the other day from Harley and got it all installed. The Harley guy told me the brake master cylinder was for my 1994 FXRP which has dual front disc brakes. When I realized my T-Block was leaking fluid, I called the guy back up to get new lines ordered. I indicated to him that the banjo bolt for the aftermarket master cylinder was a 12MM, and the stock Harley calipers were 10MM. He called me the next day and told me the master cylinder was actually for a single disk brake. I can do a single disk brake and he indicated the master cylinder has a higher pressure for a single disk brake so it is essentially the same as having dual disk brakes. Is this true with the original caliper and what would you do? I don't care if it's single or dual really.
Ordered a handle bar control kit the other day from Harley and got it all installed. The Harley guy told me the brake master cylinder was for my 1994 FXRP which has dual front disc brakes. When I realized my T-Block was leaking fluid, I called the guy back up to get new lines ordered. I indicated to him that the banjo bolt for the aftermarket master cylinder was a 12MM, and the stock Harley calipers were 10MM. He called me the next day and told me the master cylinder was actually for a single disk brake. I can do a single disk brake and he indicated the master cylinder has a higher pressure for a single disk brake so it is essentially the same as having dual disk brakes. Is this true with the original caliper and what would you do? I don't care if it's single or dual really.
BS! The guy is trying to cover his butt because he got you the wrong part. A dual disk setup has twice the clamping force of an equal sized single disk. If you had to stop a bicycle and the only thing available was the soles of your shoes, which do you think would stop faster... dragging one foot or dragging both?
Road Captain
Joined: Oct 2009
Posts: 519
Likes: 1
From: Maine
I don't know the direct answer to your question but I'm not so sure if what he told you is true either. One set of brake pads doing all the work will most likely heat up quicker than two sets of pads, and the hotter pads get the less they are able to do their job... at least that's my understanding. Forum members, please correct me if I'm wrong there. I'll be curious to hear the real answer to the question myself, because I thought dual front disks work better since they tend to put those on the bigger, heavier bikes.
Last edited by JT-FXDL; Jul 27, 2012 at 09:11 AM.
Cruiser
Joined: Apr 2012
Posts: 206
Likes: 0
From: Northern IL
I smell BS! As stated by Lucky... dude is covering his tail cause he screwed up... Keep the Dual disk on the FXR... screw the dealer... ask around and try n find the best local indy shop... 'specially on something that old... most dealer techs dont know crap about much before 2000, let a lone and FXR
Ultimate HDF Member
Joined: Apr 2008
Posts: 5,384
Likes: 12
From: Out on Deranged
BS! The guy is trying to cover his butt because he got you the wrong part. A dual disk setup has twice the clamping force of an equal sized single disk. If you had to stop a bicycle and the only thing available was the soles of your shoes, which do you think would stop faster... dragging one foot or dragging both?
Anyway, I haven't read all the responses yet, but OP don't forget that besides the added stopping power when you release the back brake to put your feet down that a dual disc will help you come to a stop without twisting the front end on ya.It's all about balance!
JT-FXDL One set of brake pads doing all the work will most likely heat up quicker than two sets if pads, and the hotter pads get the less they are able to do their job... at least that's my understanding.
Last edited by maddghost; Jul 27, 2012 at 08:41 AM.
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