Continuing - So what did you do to your bike today...?

[grog]

Using Angel 2 Tony ??

[Tony Nitrous]

Using Angel 2 Tony ??

Unfortunately, yes. 

Really not a fan but I had them gathering dust and they are only 1/4 worn.

I wouldn't buy them if they were $1 a pair, my tyre guy won't fit tyres to bikes, only lose wheels so this way the B-King is still mobile and I can take him the gold wheels for something half decent.

I don't expect the GT2's will be going far or on for long.
I'm loving the S23's and can remember why I removed the GT2's from another bike.

Looking forward to getting the B-King on S23's. Its had Powers, Roads and S21's and S22's, now having GT2's is a bit of a low point.   
No surprise that the huge US market took them off sale and now only offers the original GT, or that no other good tyre uses the double grove design.

[Eric GSX1400K3]

Bit of an emergency repair on Bilbo today, was planning to spend time on the Bavarian Mistress and get the valve clearance check and timing chain replacement underwater.

After I did the check on the balance shaft with engine running, I rutted my attention to the front brake shudder.  Front wheel off the ground, bearings checked all good. Brake lever check, wheel stops. But them I looked at the discs closely and saw a few high or bright spots, so I was thinking rotor bobbins. Took the wheel out, and after removing the calipers, trying to force the pistons back to make it easier to get them back on, noticed that 1 piston in each caliper was stuck. Took the pads out to try and get the stuck pistons to move the other way, no luck. Pushing the free pistons back in by hand, one popped out, spilling brake fluid everywhere.  So spent the afternoon rebuilding both calipers. Lots of crud in the seal grooves. The 6 pot Tokico's are showing their age a bit, paint still good, but the alloy parts inside showing some staining.  Road test tomorrow....

[Mr Gee]

Yes, you really, have to keep those six pots clean, to stop them seizing up, don't you. 

[Tally]

They are a pain, I had to strip and rebuild mine not so long ago, same problem, crud build up in the grooves.

[Hooli]

Worth it for how good they are when working though.

[Will14]

I swapped my 6 pots for 4 pots off a GSXR600, never looked back although I use the rear brake combined with engine braking more these days where possible

[Hooli]

Made me laugh when I had that Triumph Sprint.

Lots of people with them change the 4pots for 6pots claiming they're better.

[grog]

6 pots I find excellent. Easy to service, use old seals, pistons clean up nice,clean n paint, work so well. DP pads my fave.One off buy of stainless bolts, use forever.Bleed to rock hard, sure can stop.

[Eric GSX1400K3]

Yes, I like them too. I need to do the stainless bolts upgrade, but other than that they work well (when pistons aren't seized).

I am running metalgear sintered pads, I suspect they contribute to the dirt build up on the calipers, but they stop well.

Also noticed with only 4 effective pots in each caliper, they still brake well, so decent redundancy built in. Seals are still very much ok, just gotta be careful in cleaning out their retaining grooves.

[grog]

Snap On do a really good long pointed angled pick, works so well. I'll get part no tomorrow, so useful. Cleans out caliper grooves easily.

[Eric GSX1400K3]

I've got the tool pro set, 3 angled and one straight, quality stainless and nice rubberised handles.

Anyway, struggling to get the air out of the lines for both calipers for the first time ever.  Tried reverse bleed (bottom up), opening bleeders and letting gravity do the work, tried conventional bleed, no go. Lever is floppy until just before the bar.  Pads are hard up on the disc. Tried levering the pads back to force the pistons back, and tried tapping the lines and calipers from bottom to top and still no go.  Cracked the banjo at the MC, gentle squeeze of the lever and get fluid out, no air.

Will try running the engine and turning bars left and right, hoping vibration will shift the air bubble. Also will try cracking the banjo's at the splitter. 

Open for other ideas...

[Tally]

I had the same problem @ericGSX1400K3 . Could only get partial pressure so I tied the brake lever to the handlebar and left it overnight, brakes work a treat now , loads of stopping power.

[Eric GSX1400K3]

Brake update  ended up having to rebuild them again, was still having stuck pistons.  Red rubber grease worked well, and careful bleeding both sides.  Did a few laps around the block to get some temp into them, which seemed to work.  Went for a 100km ride today, still not 100%, but stop ok and way better than a spongy lever from before.  They cleaned up well, will give them another bleed later, should be a nice hard lever then.  Need to do a few high speed stops to re-bed the pads I reckon.

[MickyJB]

Not the GSX,🫣🫣 but I bought a set of front disc rotors for my ZZR.😁 My very handy son replaced them for me. Very pleased with the way the bike stops 👍