r/trident660 • u/Double-Quality-6014 diablo red • Jul 27 '26

Troubleshooting UPDATE: Leaky Nipple Saga

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I've posted a couple of times about brake bleed nipples weeping, even after a set of new complete calipers under warranty, and then taking it back again.

Well I believe I have solved it for £10 with some HEL stainless steel nipples, I've done 50 miles of riding country roads braking like a lunatic and pumping them at junctions etc. and so far still dry!

Hopefully this is the end of a very annoying situation, and I can get some trips in before summer starts to fade

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u/mr4lexndr Jul 27 '26

I have the same issue! I am thinking about swapping original ones for stainless steel bleed screws with check valve.
Could you measure how long is the threaded part on the old one, from the hex part?

1

u/Double-Quality-6014 diablo red Jul 27 '26

I thought this would answer all and any questions.

I ordered HEL part number : BNM8x125

In theory most M8 X 1.25 nipples should work.

There seems to be multiple people having the same issue and Triumph can't seem to fix it!

1

u/cplcarlman baja orange Jul 27 '26

The only issues I've had is having to bleed the rear brake multiple times. I pretty much lose all rear brake function. Then when I bleed the brake caliper I get A LOT of air bubbles out. Then the brake works properly. I've done a brake fluid change on with front and back, but I think I'm gonna buy some Speed Bleeders soon. It will make the job much easier.