Triumphrat

BadMouth

I'm considering the Harrison Mini Billet 6 caliper and had a few questions for those of you who are running them.

What brake pads does it use?

Are the pads easy to find in the US?

Is the stock master cylinder big enough for it?

Do you think the performance is comparable to dual disc? (or at least halfway there)

Did you price floating rotors?


I hate the thought of spending that much on a caliper, but my brakes are in dire need of upgrading and I'm stuck with the stock front hub because I'm having it laced to a custom rim. It's going to hurt, but it's the final piece of the puzzle and I plan on keeping the bike forever.

Slinky

I looked into this once. The caliper uses 6 separate pads(!) dinky little things from a Honda 50 or something.

You will almost certainly need a different master cylinder. The stock 11mm item is too small to begin with. A 1/2" or 14mm master cylinder would probably be a better match for the 6 pot.

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MickMaguire

Consider Beringer while you are at it.

Fitting the 6 pot along with a floating rotor is the way to go no matter if they tell you you can get away with the non floater - if the caliper is working as it should then the solid rotors would cone under hard braking if the caliper is any good, thereby defeating the benefits of the 6 pot.

The rotor and caliper will likely set you back as much as a conversion to a better front end / brake setup.

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Mick...

bkline

Harrison Mini-6 pads (~84 bucks to replace them all)


I have found a couple stateside sources, as Harrison makes mini-6 calipers for Harleys and Harley shops carry the pads.


Doubt it. Upgraded to 14mm MC first using the stock caliper and stopping power still inadequate, so bought the H-B caliper.

Don't know about direct comparison, but I feel much more comfortable with the braking ability of my bike now.

Did not.

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BadMouth

Thanks for the replies.

Any recommendations on what bike to get a master cylinder from?

I'd like to have something stock looking.


I guess a different front end is still an option at these prices.
It would have to work with a spoked 36-hole hub though. (TBS or Tiger maybe).

My front wheel is on back-order, so I could still have it drilled for a different hub at this point.

Slinky

There are a lot of bikes that use pretty much the same master cylinder, albeit with different bore sizes. The caps should be interchangeable so you can keep the stock one. Some use 4mm screws, some use 5mm but this is not a problem.

The best thing to do is take a look on ebay, and if you see one you like, ask the seller to check the bore. It is usually cast into the body.

The majority are likely to be 5/8" bore, which will not be a good match for a single disc. Another thing to watch out for is that some, although they look the same at first glance, do not have a mirror mount.

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"You can't fly with the eagles if you keep scratching with the turkeys."

triple3john

I have a Harrison 6 pot with a 5/8 master cylinder. The performance is much better than standard and in my opinion is worth the money if you intend to keep the bike (like I have). I bought a 2nd hand Kawasaki M/C from a breaker which came with an adjustable brake lever. The Triumph cover is a direct fit asthe Triumph was using Kawasaki parts at that time. Pads last well and are readily available. The feel of ny brake is very strong but wooden,so I probably should have gone for a smaller replacement M/C,but I can definitely say that the standard M/C can't cope with the bigger caliper.
If you are looking to improve handling you should try Hagon front springs and rear shock,they will transform the bike.

MickMaguire

Errrmm actually no, they weren't. Triumph were fitting Nissin parts, Nissin also supplied Kawasaki and Suzuki (and others). They are an independant parts manufacturer. But the result is the same, the master cylinders are shared with many bikes including some from Kawasaki.

A 13mm m/c would probably be best for this setup - though they are harder to find that 5/8

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Mick...

GeoffE

Hi,

A couple of bits that may be of help?

The attached shows the EBC pads, and also notes a couple of other pad makes for the Harrison caliper. I believe EBC pads would be "easily" available throughout the US?

The T300 Trident (and the early [pre-US] Sprint, Tiger & Trophy) is fitted with a 14mm Nissin master cylinder, and would keep the standard look you appear to want.

The Bonnie Thruxton has a floating rota of the same diameter (320mm), and I think will fit straight onto our single-sided classic. It is stainless, the same as our current rota, however an after-market rota may provide slightly better performance being non-stainless (ferrous?).

The early classics (you don't appear to have any bike details in your profile) were fitted with rubber hose brakelines, and these were changed to stainless more latterly. If you still have one of the old rubber brakelines, it is long overdue to be replaced and replacing with the later brakeline (or Goodridge eqivalent) will dramatically improve the feel of the front brake.

Hope this helps?

Geoff

Attached Images

EBC.jpg (13.5 KB, 4 views)

BadMouth

Thanks!
You guys are saving me a world of trial and error trouble.

Just scored a master cyl from a 900 carby sprint.
According to bike bandit, it should be a 14mm.