arcticXS

Well, for carb tuning they definitely will .....

Yes, and use the opportunity to get a smaller MC, like the recommended 11 mm. Stock MCs from the 70s and early 80s are way too big on...

And a boatload more unsprung weight.....

No, 4x 34 mm. But still bigger pistons than for example "blue spot" type caliper from R1/ R6 etc

Test ride one! Just be aware that some 900 Monsters have the "small valve head" from the Cagiva Elefant 900, while other have the...

Maybe a good bike, but hardly good looking.

Also, a disc made for a modern 4 piston caliper has a narrower friction "band", so will always be lighter than your oem 298 mm disc...

My disc is very close to the fork sliders, yes. Maybe 2 mm clearance between floater buttons and fork slider. One thing to be aware of...

My setup is a 320 mm custom made ISR disc, 5 mm thick, offset 23 mm (measured from OUTSIDE of disc friction surface to mounting surface)...

That would be "XSJohn"....Not sure if he is with us anymore? However, I don't think he was much concerned with running at "high-ish"...

That would mostly be depending on piston and piston pin weight. Larger bore would not necessarily mean heavier pistons. Also, when...

Maybe not very helpful, but still related to the "rephase or not" discussion: Balance factor. Now I do not know what balance factor the...

Regarding suspension: Stock shocks and many aftermarket shocks have only 3" travel, giving around 4" of wheel travel. However, there are...