Make a lighter fs570

It's not much weight that can be stripped easily or cheap. As you say tubeless and battery. The subframe is not easy to change, and it is relative light weight anyway.

If you want to go track only you can remove all lights. If you have plenty of money you can change out as much as you can to carbon and titan....

The engine is very heavy as the cases are very strong and thick. That is also why the 70 degree can be run for many hours without problem, not much flex so less worn moving parts.

I haven't weighed mine, but I have to say that, in comparison to my Hypermotard S and my other Ducs, it is so much lighter that it is an absolute joy to ride on a tight road or track. As you said, the battery is the most obvious weight saver; next, I would look at the wheels. I have a set of carbon hubbed wheels on my 2015 KTM 450 SX FE, and light brake rotors, and the lowered rotating mass is a noticeable difference from when I practice with a set of RAD wheels. I don't like to use oversized rotors, as radius contributes to rotational momentum, and the stock size works just fine. Contact DUBYA for wheels - they are really easy to work with. (Dubya is owned by Tom White's [White Brothers] daughter and son-in-law. Great people!) I don't know if "Think!" makes seat foam for the bike, but that is over a one pound weight savings up high. I haven't put much Ti on any of my bikes other than my 1098R, but the next step I'd take, if I had an unlimited budget, would be Ti axles and swingarm bolt. Tires can vary quite a bit in weight, and they need to be changed fairly often anyway. The stock muffler is way heavy - I'm using an FMF, which isn't being produced anymore, but if you call CycleBuy, they'll set you up with a KTM FMF muffler - the only difference is the location of the spring attachment, and that's easy to work around with longer springs - I have one on my FE570. (This would probably be my second step, now that I think about it.) FMF Ti header pipes are still available, but they are pretty expensive. I have one on my FE390, but only because I purchased it at a great price - I don't think it is worth the $, but it will both save weight and allow the bike to run a bit better, especially down low.

I'm looking forward to reading the responses on this topic - thanks for posting it! Jim Roble

Saving weight is expensive definetely on these bikes because stock stuff is all pretty lightweight as is...
Cheapest is lithium battery most effective and noticeable weight loss are a set of alpina carbon rims almost 3kg lighter and makes big difference in handling.
Exhaust system from fmf is not that much lighter I would be surprised if you save over 1 kg on complete system....
Also lighter shock and forks are expensive mods and subframe remove lights etc but the 570 engine is heavy...

IMO it's not worth spending lots of money just to make it light just buy a ktm or husqvarna 450 motard these bikes are way lighter but not street legal and higher maintnance but also better suited for track use:happy:
I like the 570 because it's a good allround bike feels almost as light/nimble like a 450 factory motard but it is street legal and way more reliable to do more miles before a rebuild just a tad slower/heavy'r if you would want to use it for racing only but I do'nt like a 450 for road use.... way to revvy
I have tried a smc690r once great engine with a bit of tuning a way faster bike than a 570 (you can reach 70 whp pretty easily) but I don't like the way it feels (to big/heavy in the tight slow stuff)

swap the engine for a 07 or 08 650

6-7kgs lighter, more power and more torque

then you can also remove battery, fuel pump, e start

should drop it by 10 kgs and you only need a small screwdriver and some cable ties to make the change LOL

FWIW i don't buy the story of the 70 deg engines being more reliable have seen some shockers and the aust safari berg team found a few issues with the 70 deg engines .. big ends headgaskets fuel pumps etc however none whatsoever with the 628 in long haul desert racing

Titanium fork springs? It has been argued that as it's kind of unsprung weight it counts for quite a bit. Dunno!

Sideways answer:Stiffer springs and a revalve make the bike rock less and the weight felt less.

Off the wall: Lighter seat foam and seat pan. Think! foam is s'posed to be ... lighter TH1NK Technology

just add some of these and the decreased weight of your wallet will help too!!

You could try this

Goose916 said:

just add some of these and the decreased weight of your wallet will help too!!

Click to expand...

I put my stock FS570 wheels & tires on the scale new - also had my Carbon Alpinas there with similar setup. The two sets where within a pound of each other, no shiz. I was totally surprised at the result. Now the one was only a 4.25" and the other was a 5" but pretty damn close for the coin difference IMO.

Yeah, the Alpina's weight savings is mostly attributed to the amount of sweat you produce when observing any gravel; pot-hole; curb; and/or tire mounting machine. I imagine you lose weight anytime those elements appear anywhere near your $4k wheels!

However, they are f'n bling bling! Like a pair of Jimmy Choo's for your berg, stupid expensive, even a good deal costs too much but damn they look good!

I want to tart up my 'tard with those . . . alas, I want a call girl to meet me in the lobby of the Four Seasons but can only afford a crack addled junkie in front of motel 6.

Torque Monster said:

I put my stock FS570 wheels & tires on the scale new - also had my Carbon Alpinas there with similar setup. The two sets where within a pound of each other, no shiz. I was totally surprised at the result. Now the one was only a 4.25" and the other was a 5" but pretty damn close for the coin difference IMO.

Click to expand...

Well than you must have different stock rims or something because the difference on my scale was about 700 grams lighter front wheel and almost 2kg (1.8 ) lighter rear wheel (without discs/tyres/bolts/sprocket's).
I can imagine if you weigh the alpina rims with heavy'r sprockets/rotors and a set of tyres that are over a kg heavy'r than the weight saving is minimal...
But even with a wider tyre (5 inch rim instead of 4.25) my alpina set is still almost 2 kg lighter than what my stock setup was and you can realy tell the difference riding...
Weighing the wheels only is the only right way to do it some tyres in same sizes just differnt type can be over a kg difference on a set....

But it's still crazy money for some wheels :happy:

Oh and the alpina's are very strong they survived multiple big crahses already only damage is the clearcoat is gone in some very small places on the edge of the rim but they are still solid