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Old 11-12-2012, 05:56 AM   #1
Bluethumb OP
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Billet Mini 6

I just picked up a R80ST. The PO upgraded to a Harrison Billet Mini 6 brake caliper, using the stock disc. I believe I've seen this same caliper used with larger rotors, using an adaptor mount with the caliper to allow the larger diameter rotor. I've done some web searches but can't come up with any info.

Anyone running the Billet that can give me advice on the best set up. Would a larger rotor give me better braking?

I also need a source for a new brake line.

Thanks!
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Old 11-12-2012, 07:30 AM   #2
One Less Harley
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wait till you have to replace 3 pairs of brake pads!!! The stock pads are soft and don't last long. On my R100GS front end I was able to use the Stainless line which fit the stock caliper. I ended up doing a conversion to a Brembo 4 pot (which you can't do) and was very happy with that. Sold the 6 pot.

You should be able to use the MAP engineering rotor and bracket just fine. In order of preference I'd do the larger rotor first, then the 6 pot. My main issue with the 6 pot was 3 pairs of soft pads. Even though longer lasting pads are an option.

Try Motobins, Sibeinbok, Boxerparts in germany, Motoren Israel.
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Old 11-12-2012, 07:37 AM   #3
Bluethumb OP
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The six pot is already on the bike, so I get to live with it. I've looked at the MAP website but couldn't see any listings for larger rotors or adaptors. Is MAP the source or other sites? as far as Motobins, etc., is this for brake pads?
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Old 11-12-2012, 03:20 PM   #4
One Less Harley
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should fit the ST

http://www.boxxerparts.de/xtcshop/pr...38dd0837f662d0

http://www.bmwboxersupplies.com/prod...roducts_id/164

ST brake kit
http://www.motoren-israel.com/produc...for-R80ST.html
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Old 11-12-2012, 04:01 PM   #5
Hennepinboy
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Billet 6

EBC FA175 brake pad will fit the Harrison Billet 6 brake caliper. Seals and O-rings are available from Harrison in England. It is pretty easy to rebuild the caliper. I am running a stock diameter EBC brake rotor.

I did safety wire the caliper pins that hold the pads so I could not loose a pin if of the three hair pin should fall out.

I have the Billet 6 on the front of my 92 R100GS, if I had the balance or the ball I think I could do stoppies with the bike, the Harrison was a big improvement from stock.
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Old 11-13-2012, 10:17 AM   #6
Mark Manley
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I have ridden a friend's ST with a Harrison six piston caliper and thought it was as good as the double disc set up I have on the front of my G/S, I did find it pulled to one side and think a larger disc would make this worse and the bike over braked, stick with what you have.
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Old 11-13-2012, 10:24 AM   #7
Bluethumb OP
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Good advice. Thanks. I think it just needs a good sorting out.
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