New con rods from MAP or keep the stock ones?

Fast Eddie · Sep 7, 2026

Now you got strong rods… may as well fit a big bore kit…

Onder · Thursday at 7:47 AM

er, already did that....
All Tridents should be at least 850. Turns them into a three cylinder Bonneville.
May the Torque be with you.

Fast Eddie · Friday at 5:27 AM

Onder said:
All Tridents should be at least 850. Turns them into a three cylinder Bonneville.
May the Torque be with you.

Couldn’t agree more !

Is it a Beadling kit ?

Onder · Friday at 2:14 PM

Fast Eddie · Friday at 3:39 PM

Onder said:
yes

Superb bit of kit.

Tigernut · 2026-09-19T02:38:28-0600

Onder said:
Went with the Thunder Eng alloy rods. Good price fast service. As you can see by the photo the weights (inserts included)
are pretty far off but I'll have to live with that!

View attachment 130834 View attachment 130834

0.3g max difference seems pretty close to me. Thunder rods are very good, I always use them in 750 twin engines.

Onder · 2026-09-19T09:55:06-0600

Tigernut said:
0.3g max difference seems pretty close to me. Thunder rods are very good, I always use them in 750 twin engines.

I was being funny....one gram is quite good 3/10th of gram is silly good.

Onder · 2026-09-19T09:56:58-0600

Fast Eddie said:
Superb bit of kit.

I have had some problems with oil control. Both internal and external. P&M says their method of installing the liners is better.
Maybe, I have not had a set to hand.

Fast Eddie · 2026-09-19T10:40:48-0600

Onder said:
I have had some problems with oil control. Both internal and external. P&M says their method of installing the liners is better.
Maybe, I have not had a set to hand.

Shame no one offers a plated bore version innit.

Onder · 2026-09-19T11:27:20-0600

Fast Eddie said:
Shame no one offers a plated bore version innit.

In fact I would agree. Plated bore is fine as long as nothing goes wrong. Sleeves are tried and true but the sleeve to block
clearance is a potential problem. I have had sleeves slip, turn and leak. Sometimes all three at once, Nicasil doesn't do any of the three.

Fast Eddie · 2026-09-19T12:05:26-0600

Have you heard of Dave Madigan (does the starter kits etc)?

Some years ago he was developing a 12 valve head for triples. Kinda lost touch with him tho so dunno what happened.

Onder · 2026-09-19T14:02:12-0600

Man! How does he get 12 valves into one head? ...gasp...

Triton Thrasher · 2026-09-20T03:50:13-0600

Onder said:
Man! How does he get 12 valves into one head? ...gasp...

Maybe they’re small valves.

New con rods from MAP or keep the stock ones?

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