My new TSS

Onder · Jul 15, 2026

What he said about the cable connected master cylinder! Insanity. Brakes were never a high point on my early R90s.

baz · Jul 15, 2026

Onder said:
What he said about the cable connected master cylinder! Insanity. Brakes were never a high point on my early R90s.

Didn't BMW say it was for safety in the event of an accident the rider was less likely to get brake fluid on him
Or something like that

Onder · Jul 15, 2026

Elfix · Jul 15, 2026

I think it had more to do with their integrated throttle/brake lever/switch perch assembly. With the under-tank MC they could use the same one across their entire lineup.

Fast Eddie · 2026-09-19T09:09:45-0600

In post #11 I said “I might stick a bore scope down the bores”.

Scope creep already…

Onder · 2026-09-19T10:02:24-0600

No, you are doing it correctly. Look now and know rather than know after you have a problem and the work is the same anyway.
What is sad, is this head should have been on the twins day one. Nothing technically would have prevented it. Imagine it on
the Trident. Hey, don't trudge it Rudge it!

Fast Eddie · 2026-09-19T12:12:38-0600

Onder said:
No, you are doing it correctly. Look now and know rather than know after you have a problem and the work is the same anyway.
What is sad, is this head should have been on the twins day one. Nothing technically would have prevented it. Imagine it on
the Trident. Hey, don't trudge it Rudge it!

Well I must say, it’s lovely to work on. After all it is actually brand new !

I decided to strip the top end for a few reasons.

Main one is the powder coating is so hideously thick on these things. It’s like wrapping an insulating jacket around the head and barrel! I’m planning on stripping it and getting it re-done in something like Cerakoat.

And I know a racer bloke who makes nickasil barrels, excellent things, so am thinking of putting a set on.

These subtle mods combined will make a huge difference to cooling. And not having the liners removes few potential TSS known failure modes.

Onder · 2026-09-19T14:05:47-0600

Even on frames poweder coat always seems too thick. But on jugs it is really a bad move. Wonder what would anodizing
would do?

kommando · 2026-09-19T14:45:11-0600

There was an experiment on this forum that showed powder coated barrels performed as well as painted.

gortnipper · 2026-09-19T20:02:13-0600

Fast Eddie said:
Well I must say, it’s lovely to work on. After all it is actually brand new !

I decided to strip the top end for a few reasons.

Main one is the powder coating is so hideously thick on these things. It’s like wrapping an insulating jacket around the head and barrel! I’m planning on stripping it and getting it re-done in something like Cerakoat.

And I know a racer bloke who makes nickasil barrels, excellent things, so am thinking of putting a set on.

These subtle mods combined will make a huge difference to cooling. And not having the liners removes few potential TSS known failure modes.

Flow porting it?

My new TSS

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