Home › Forums › General Bike Talk › 2 Stroke expansion chamber protection
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February 16, 2011 at 1:17 am #99572
What aree the 2 stroker riders preference for expansion chamber protection?
I currently have a Hyde sump/pipe guard. While it offers good protection I find it fills up with mud, grass and leaves. I’ve had the leaves smoldering inside the guard on one ride which is not fun. It’s a pain to get on and off too.
Hyde
Are these type of guards any good? There’s a few different models.
I’m thinking about making something like this one. I can’t find anyone that makes them out of small diameter pipe. Whipps make a big ugly alloy sucker for KTMs. But I’m thinking 8mm ID stainless steel tube. Welded and braced correctly it should be plenty strong enough.
Any thoughts???
February 16, 2011 at 7:44 am #196890014.JPG[/attachment]
[ive got the that big ugly one from whips on the ktm , swear by it, great product with 100 % protection from not only rocks but logs causing structural
damage to the pipe but you dont have to worry Mal 5.1 i think they only make them for good bikes not them ugly wr huskysFebruary 16, 2011 at 7:59 am #196902Thought they made them for KTMs as well Ian :laugh: I think he wants it for the gasser.
The Whipps looking thing for mind Mal I know it’s as ugly as a 12 rum girl in the morning but protection wise it seems the goods and like Ian said impact damage protection. Ollie made a carbon fibre one a few years back ( I am not hanging shit on it Ollie ) I for the life of me couldn’t see it handling impact damage being mounted as a skin to the pipe. I offered to hit it with a baseball bat but he wouldn’t let me :laugh:
The shell back looking thing is more a motocross roost thing from back in the day isn’t it??? I reckon it could move as well when impacted
I know the Hyde smolders and steams the leaves etc when damp but it offers good protection. There wouldn’t be enough heat in a pipe to start a fire would there?TB
February 16, 2011 at 9:39 am #196903Best you get it sorted before an assult on Amazon mate.
Will be up there this weekend filling a particularly nasty hole/ rock step thingy
Cheers
MurphFebruary 16, 2011 at 9:42 am #196891G’day Mal. I’ve got the Hyde one and it works heaps good but sometimes it fills up with crap aswell. On muddy rides it can fill up and the mud has moulded to the pipe and been a hassle to get out. I’ve had to take it off to get all the mud out which had dried out and gone hard. It adds a bit more weight aswell.
On most rides though it gathers a few leaves and crap and normally just washes out.
Sometimes I get the young bloke to get his hands in there and pull it all out for me:laugh: .
On my old 300 I had a Hamtec/Hamlet or something like that. A guy in Vic used to hand make em out of aluminium. You used to just tell him what bike ya had and ya pipe and he’d make it for ya.:cheer: They were good ones too as they went right around ya expansion chamber and down under ya sump like the Hyde one but without all the holes . The last time I spoke to him (about 5 years ago) he was telling me that he got in a car stack and was pretty messed up and was giving it away if I remember rightly:(
February 16, 2011 at 9:43 am #196892Why is the guy hugging the rider, hell they are only sitting there for a picture? He doesnt need to even be on the bike he could have stood behind. I bet its a KTM rider thing thats why I dont understand :laugh: :laugh: :laugh: :laugh:
Sorry Mal back on topic
TB
February 16, 2011 at 10:23 am #196911Why is the guy hugging the rider, hell they are only sitting there for a picture? He doesnt need to even be on the bike he could have stood behind. I bet its a KTM rider thing thats why I dont understand :laugh: :laugh: :laugh: :laugh:
Sorry Mal back on topic
TB[/quote]
He’s probably a honda rider just wanting some KTM love:lol::kiss: It must be hard for Honda riders to understand as most of em are self centred posers:P
February 16, 2011 at 10:32 am #196919ouch :laugh: :laugh: :whistle:
February 16, 2011 at 11:41 am #196893Mal,
I’ve got the big ugly whipps number. Seems to work okay. I’ve bent mine twice to the point where it was touching the pipe. It takes some hits. The trouble is that because the pipe is so big and extends so far from the frame it is hard to get bracing and any hits higher up get a lot of leverage on the mounts. Hence the movement. The whipps one was dear at $450 with the skid plate but it has saved my pipe more times than I can remember. Took a fair bit of swearing to get the mounts on initially but the guard itself is now easy to take on and off for o-ring changes (mounts stay on bike).
I’ve seen the hyde ones pierced by sticks. There used to be another metal cage alternative made by pickles not sure if it’s still available. The metal cage type is great for the pipe crunching big hits but still get little rock dents.
When I first got the whipps one I thought it stuck out the sides a fair bit and was paranoid about it catching on things. This has proven to be unfounded, it never seems to catch and now I hardly worry about it at all even in the middle of the deepest rut.
The biggest difference between the metal frame ones and all others is they use the frame for support not the pipe itself.
If you’ve got the skills making one yourself would be the go but it won’t be as simple as it sounds and don’t ask me what bar to use.
February 16, 2011 at 11:48 am #196912Trailboss wrote:Why is the guy hugging the rider, hell they are only sitting there for a picture? He doesnt need to even be on the bike he could have stood behind. I bet its a KTM rider thing thats why I dont understand :laugh: :laugh: :laugh: :laugh:
Sorry Mal back on topic
TB
They are the siamese twins world enduro champions
February 16, 2011 at 11:58 am #196894Mal, Ive had the Hyde plastic bash plate, a whipps alloy monster on my old husky 360 and as TB mentioned the Carbon Fibre protective skin on Numerous bikes (RMX Gasser Husky 360 (2) and Ktm 300)
I did like the Hyde plastic job but the leaves and Mud etc were a pain in the arse I also thought the stainless fittings were a bit piss ant but protection was good as the plastic tends to spread the impact over the gaurd.
The Whipps pipe gaurd was very good as well, a bit heavy and ungainly looking but it could certainly take some abuse,the negatives were it stuck out a bit and could get hung up on ruts and close logs when travelling at pace in the tight single track. also smaller rocks still managed to get to the pipe and dent the exspansion chamber.
The carbon fibre and fibreglass skins I think are the go,they dont offer the same impact protection of the alloy whipps etc when jumping logs and climbing over rocks but fo the majority are excellent from flying rocks from a XR650 or the simple laydown or baseball bat etc
If you hit a big enough log with the CF gaurd you could bend the pipe at the intake,but these are fairly easily repaired. I try and hit logs with a bit of momentum to avoid the pipe being damaged .A new FMF pipe ATM is about $260 delivered to austOllie
February 16, 2011 at 12:36 pm #196921Dusty I used to have a Hamtech on my ’00 KTM250exc. Great product. They were around $360 in 2002 which was rather expensive but did it cop a bashing. Mine looked like it was made from an Iraqi policeman’s helmet after I tortured it for a few years.
Hamilton was his surname. Used to make them in the old Tresseder shed in near Redbank in the Kiewa valley. I picked mine up there for cheap and he showed us how he makes them. I’m pretty sure he was killed but then again he may have been injured enough to go AWOL enoughe to be presumed dead. Some of us tried to get hold of the molds but wasn’t possible.
Shame, was a quality product.February 16, 2011 at 12:53 pm #196922Thanks for the replies. Heaps of good info.
I’ll probably just stick with the Hyde and whinge about it.
I have 6mm and 8mm stainless tube so might try and design something strong enough that looks ok as well.
February 16, 2011 at 1:48 pm #196895G,Day Mal,
My Hyde bash plate is trashed, and all the mounts bar one are trashed, so have used worm drive clamps.Have 2 on the front of the chamber and 1 at the rear of the frame.I just cut a slot the rear bolt holes and as i broke the bolt that is drilled through the original worm drive clamps i just went to bunnings plumbing section and got the large ones strait through the air holes.Im thinking take off the front clamps loosen the back ones a touch and hinge it down for service/cleaning.The only reason mine can’t do this is it laps through the water pump frame rail.
Only down side is……….lost a few rubber spacers and had some melting on the top edge.Probly could get a strip of heat bandage and sort this.
cheers
February 16, 2011 at 7:52 pm #196927ive just gone through all this crap with my 300.
i had a hyde bashy, (still got it if anyone wants it!) it was great… i thought :pinch:
till i realised i had busted my chamber because every time i stacked it knocked the pipe a little.
with the amount i stack, the pipe was rooted in about 100hrs, with a crack top and bottom near the flange.Ollie makes a good point about cheap FMF pipes, however there is nothing like a hydeplate or whipps to fit the different shape of aftermarket pipes.
this really limits the protection available to the ‘moose type’ alloy spine type jobbies and such.i got hold of a FMF gnarly by mistake and was gonna just go with it until i did a bit of research.
i ended up getting a new KTM expansion chamber, at the cheap price of $500 from Sutto’s.
they retail for $749 !!
then i got a Whipps big ugly beast for the OBT price of $360 delivered.
it was a bitch to get sorted initially but is now easy.and it looks tuff….
when you get past the uglyness of it :laugh: :laugh:
good luck getting anything for your stable of Exotic bikes Mal :cheer:
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