TWO-STROKE CORNER CARVER: KTM 300 SALT CAFÉ RACER

[lostboy]

That’s awesome

The funny thing is that I clicked on the link and, as I said, expected to dislike it, took one look at it and thought the same and then "if Couchy and Tricky like this then it could become the next RTTL one class bike for Pembrey"!

[Yorick]

The original spanny looks better.

PHO_BIKE_DET_TE-300i-MY22-45-right-bodywork_#SALL_#AEPI_#V1.png (379.7 KiB) Viewed 375 times

[Count Steer]

The original spanny looks better.

PHO_BIKE_DET_TE-300i-MY22-45-right-bodywork_#SALL_#AEPI_#V1.png

One of the things I didn't like on the bike at the top of the thread was the routing of the spanny under the engine.

[Mr. Dazzle]

IIRC, one manufacturer was pressure forming fourstroke pipes in dies a few years ago (might have been Micron but I just can't remember for sure) which seemed a bit special but I've not heard anything recently about it so it might have gone by the wayside.

S'a fairly common technique on high end 4 stroke stuff (my old sister company made F1, MotoGP etc. type exhausts). £££ though 'cause you need the right tools, even F1 type manifolds would try to avoid it. We had some success with 3D printed tooling though to reduce the cost.

[crust]

Probably quite enjoyable if you live right beside a very twisty road, till you get white finger and can't hold on.

Going to be a bastard on any length straight and a right bugger in traffic. Worst commuter bike ever, fact!

[Yorick]

Probably quite enjoyable if you live right beside a very twisty road, till you get white finger and can't hold on.

Going to be a bastard on any length straight and a right bugger in traffic. Worst commuter bike ever, fact!

I often nip into town on my Husky. Great at those speeds and can treat the kids to monster wheelies

[Le_Fromage_Grande]

IIRC, one manufacturer was pressure forming fourstroke pipes in dies a few years ago (might have been Micron but I just can't remember for sure) which seemed a bit special but I've not heard anything recently about it so it might have gone by the wayside.

S'a fairly common technique on high end 4 stroke stuff (my old sister company made F1, MotoGP etc. type exhausts). £££ though 'cause you need the right tools, even F1 type manifolds would try to avoid it. We had some success with 3D printed tooling though to reduce the cost.

When GPs were two strokes the pipes were pressure formed, but it was bloody expensive.
Micron used to make expansion chambers by stamping each half, from memory Japanese MX bike pipes were made like this and had tapered front pipes.

[Mr. Dazzle]

IIRC, one manufacturer was pressure forming fourstroke pipes in dies a few years ago (might have been Micron but I just can't remember for sure) which seemed a bit special but I've not heard anything recently about it so it might have gone by the wayside.

S'a fairly common technique on high end 4 stroke stuff (my old sister company made F1, MotoGP etc. type exhausts). £££ though 'cause you need the right tools, even F1 type manifolds would try to avoid it. We had some success with 3D printed tooling though to reduce the cost.

When GPs were two strokes the pipes were pressure formed, but it was bloody expensive.
Micron used to make expansion chambers by stamping each half, from memory Japanese MX bike pipes were made like this and had tapered front pipes.

It's still bloody expensive

The main reasons to do it I think are weight and strength. Weight because not having all those welds means you can use thinner metal and strength because well....you ain't got all those welds!

[Couchy]

That’s awesome

The funny thing is that I clicked on the link and, as I said, expected to dislike it, took one look at it and thought the same and then "if Couchy and Tricky like this then it could become the next RTTL one class bike for Pembrey"!

Those tpi 2 strokes are pretty good. Find a crashed RC390 and an enduro bike and get building

[demographic]

IIRC, one manufacturer was pressure forming fourstroke pipes in dies a few years ago (might have been Micron but I just can't remember for sure) which seemed a bit special but I've not heard anything recently about it so it might have gone by the wayside.

S'a fairly common technique on high end 4 stroke stuff (my old sister company made F1, MotoGP etc. type exhausts). £££ though 'cause you need the right tools, even F1 type manifolds would try to avoid it. We had some success with 3D printed tooling though to reduce the cost.

When GPs were two strokes the pipes were pressure formed, but it was bloody expensive.
Micron used to make expansion chambers by stamping each half, from memory Japanese MX bike pipes were made like this and had tapered front pipes.

Aye, the micron on my old Fizzie was a stamped in two halves then welded up affair, same as my KX spannies (a Pro circuit, a FMF and a Ziptie racing one which I suspect was actually made by Noleen.
The fourstroke hydroformed headers than Micron made are a different affair alltogether though and bave had normal round pipes put into dies then pressure formed to the shape of the dies.
Some bumf I found on them here.
http://www.micronexhaust.com/store/prodserpent.htm

[Newey]

I'd be interested at how it rides with the autoclutch as well.
I like it, well... Most of it anyway.

The Rekluse was wonderful on my Husqvarna in the really tight single trails, not sure how much it's going to help on a road bike, not a lot of stopping and going happening.

[demographic]

I'd be interested at how it rides with the autoclutch as well.
I like it, well... Most of it anyway.

The Rekluse was wonderful on my Husqvarna in the really tight single trails, not sure how much it's going to help on a road bike, not a lot of stopping and going happening.

Yeah, that's kind of what I was wondering as from reading about them fitted to KX500s they were used by guys on areas like Colorado trails with tight corners and steep hills right after.

IIRC one bloke used a Rekluse on his 70+ horsepower KX500 iceracer but I just can't remember details about it.
Some were fitting a gear from a KLX roadbike so they got a wider ratio transmission but I don't have the foggiest about the gearing on those KTM/Husky bikes.

[MingtheMerciless]

[Yorick]

What's this recluse clutch thingy? I'm having problems with my left hand.

[Newey]

Bike will never stall when your falling off and no need to keep your hand feathering the clutch when doing tight trails with lots of trees. I'm not sure it's worth the expense if you ride a lot of open trails and have electric start.

[Yorick]

Bike will never stall when your falling off and no need to keep your hand feathering the clutch when doing tight trails with lots of trees. I'm not sure it's worth the expense if you ride a lot of open trails and have electric start.

Lots of our riding is slow technical stuff and I'm riding the clutch 50% of the time.

[Newey]

Bike will never stall when your falling off and no need to keep your hand feathering the clutch when doing tight trails with lots of trees. I'm not sure it's worth the expense if you ride a lot of open trails and have electric start.

Lots of our riding is slow technical stuff and I'm riding the clutch 50% of the time.

Perfect for that, your left hand will thank you, no messing about with the clutch in a corner just hold onto the handlebars and no fear of stalling mid turn, it would be like that happy moment you had when you first used a slipper clutch.