Replacement Rear Caliper, Iím pooched. - Triumph Forum: Triumph Rat Motorcycle Forums
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post #1 of 14 (permalink) Old 08-27-2019, 01:11 AM Thread Starter
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Replacement Rear Caliper, Iím pooched.

Long story short, Iíve got a truly trashed rear brake pin. Iíve tried tapping in a larger Allen socket (6mm), T-45 Torx bit, and finally, an extractor. (Iíve used a fair amount of heat as well) Iíve hardly got any meat left on the inside of the pin head, and Iím almost into the threads on the caliper. Soooo, the questions are: 1) Have I missed any tricks on getting this booger out? 2) I canít seem to find a part number, or availability, on a complete rear caliper. Any ideas on substitutes? Iíve read that a Honda ST-1100 caliper should fit, but Iím suspect unless someone here has first hand experience. Any thoughts would be very much appreciated.

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post #2 of 14 (permalink) Old 08-27-2019, 08:06 AM
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What bike do you have?

TTP Tune#3, NH Toga's.

I'm no Gynecologist but hey I'll take a look.
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post #3 of 14 (permalink) Old 08-27-2019, 12:34 PM Thread Starter
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2015 Bonneville SE, Newchurch. (Mag Wheel Bonnie) Thanks!

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post #4 of 14 (permalink) Old 08-27-2019, 12:39 PM
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I had a similar problem with a pin. I brought it to a machinist at the local parts store and they got it out for me. A lot cheaper than a new caliper. The pros are pros for a reason, giving them some cash for their experience is worth it once in a while.
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post #5 of 14 (permalink) Old 08-27-2019, 12:48 PM
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What BonnieBlack suggested and if that does not work try Ebay or a breaker like Pinwall Cycles in Ohio.
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post #6 of 14 (permalink) Old 08-27-2019, 04:48 PM Thread Starter
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Thanks folks. Iíve had a look at EBay & Pinwall both. What they currently have is pretty ratty looking. I may have to pursue the machine shop option down the road.

Iíve got to believe this caliper is a standard OEM part on something else, I just need to figure out what it is...

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post #7 of 14 (permalink) Old 08-27-2019, 05:02 PM
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You could check cross-references for the pads. The EBC rear pads for our bikes are FA214/2 or FA214/2HH.

I looked at this catalog: https://ebcbrakes.com/assets/Flip-Ca...ile/index.html, those pads are only listed for Triumphs there. I'm guessing that means our calipers are specific to Triumph as well, not used on other models.

I don't remember hearing about an aftermarket alternative on the forum, but hope someone else chimes in with one. I've priced replacements before, and wasn't thrilled with the prices of what I found.
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post #8 of 14 (permalink) Old 08-27-2019, 06:01 PM
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I have a 2005 Thruxton rear caliper I could sell. It's not perfect but cleaned up it's not horrible. You'd have to satisfy yourself if it would fit on your bike but I think it should.
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post #9 of 14 (permalink) Old 08-27-2019, 08:49 PM
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I think you can run a drill into the pin such that you get into the actual smaller diameter "pin" part beyond the fatter threaded head section. This should let you essentially shear off the threaded section from the pin and let you disassemble everything. The pin should that come out with a bit of tapping with a drift. The stuck head might need a tap run into it.
I got my one stuck pin out using a square sectioned "easy out" type extractor. Had to drill into it though to permit the tool to get deep enough in there for traction.

It is advisable to source stainless pins for these rear (and front) calipers...the stocks are just plated and they corrode with all the road spray these see.

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post #10 of 14 (permalink) Old 08-28-2019, 11:42 PM Thread Starter
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Lots of good thoughts here. My final attempt was with a ďsquare sectioned Easy OutĒ. Thereís very little of the threaded portion of the pin left, so Iím reluctant to dig into it to much more lest I booger the threads in the caliper itself. Iím not in a big hurry as Iíve got a ton of meat left on the current pads, so I think what Iím going to do is check with a local machine shop and get their thoughts. (This is a small town, so I might need to take a trip to the big city and ask around down there.) Iíll see if any of those folks have an epiphany.

In the interim, Iíll PM YRUNVS over the next few days, as a plan B.

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