The sexy Jl

[18aprilia]

what do you think to this beauty hope to get this for my rs125 one day....

[18aprilia]

ive got a sound clip of this baby being reved up, and all i can say is wow, it sounds like a viper not the car, nor the snake, but its hard to explanie it sounds very wicked, and very overpowering,

[tatters]

don,t expect much increase in performance, apart from the sound and looks there a bit of a waste of money
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Past:NRG50,AF1125(x2),NSR125RR,ZZR250,CX500,VFR400,KR1S,ZZR600(x2),CB400N,YZF1000(x2),KH125,Z200,FX400R,CBR954RR(x2)GPZ500S,GT550,VFR750F(x2),RD350N,XR650R,CBR600F,CB250,KDX250,YZF750R,CRM250,400EXC,KLR650,TTR600RE,DR350S,R100GSPD,RGV250,VMAX1200,DL650 Present:G650XC,C12,KZ750,1190ADV

[Ste]

[Minky_monkey]

[Dom_]

It will offer an increase in performance due to the re-design of the expansion chamber. It will improve the top end performance and maybe a little in the mid-range. The single version will be better for performance due to the aid of backpressure.

Before anyone asks, I know someone who has got that exact same exhaust.

So Ste, not only does it improve performance but it will not rust (because its stainless steel), sounds better and looks better.

[18aprilia]

cheers gun for backing me up, i can always count on the rs crew

[divuk83]

Why is it made out of stainless steel? Stainless expands when it gets hot and you lose a bit of power, ask any 2 stroke tuner. Mild steel may rust, but its better for 2 stroke pipework. Its does look quite nice though.

Dave

[TheShaggyDA]

It looks like it's missing the tartan bag thingy
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Current: CB500 Previous: CB100N, CB250RS, XJ900F, GT550, GPZ750R/1000RX, AJS M16, R100RT, Enfield Bullet

[i:6e3bfc7581]But still I fear and still I dare not laugh at the madman...[/i:6e3bfc7581]

[tatters]

1. the pipe will make harly any Noticeable increase in the BHP


2. stainless steel does rust just not as fast as mild steel (just wait till they start putting the salt down)



l could go out fork out £500 and get a pair of jolly moto etc exhausts for my KR1-S, the only advantage it would give is less weight than the standard pipes and a lighter wallet.
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Past:NRG50,AF1125(x2),NSR125RR,ZZR250,CX500,VFR400,KR1S,ZZR600(x2),CB400N,YZF1000(x2),KH125,Z200,FX400R,CBR954RR(x2)GPZ500S,GT550,VFR750F(x2),RD350N,XR650R,CBR600F,CB250,KDX250,YZF750R,CRM250,400EXC,KLR650,TTR600RE,DR350S,R100GSPD,RGV250,VMAX1200,DL650 Present:G650XC,C12,KZ750,1190ADV

[Keith]

The JL pipes are too expensive for my taste, and dont offer visual enhancement either. (Much prefer the singles.)

But the change in expansion chamber design alters the power to make it rev cleaner throughout the range and even a little higher.

Nothing wrong with getting a performance can. Look at 125 MX bikes for example. Shape of the chamber gives more torque at a part of the rev range.

It will improve over stock, (Check on the Aprilia forum and talk to people who own it, theres plenty of them) just I wouldnt go for the twin. One added silencer is a lot more..
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Aprilia RSV Mille R Edwards Replica - Aprilia RS250 - Suzuki GSXR600 Supersport Race Bike

[LorryDriver]

I have seen dyno's of the JL and standard and it does make a notiable improvement and it's lighter, youngun has seen these to and was actually there when they were done.

I personally think the twin can versio is gay, its not going to fool anyone and the single can version is cheaper, lighter and gives better performance.

It is true about the stainless/mild steel argument, but you can choose weather you want mild or stainless when you order, just like you can choose stainless or carbon for the can(s).


btw, Jonny (you all know the Jonny I mean) asked me to remind all you bcf-ers he hates you all

[Nickrs125]

Do you know anything about 2 stroke expansion chambers and how they work :s

firstly, the pipe should be as smooth and as stepless as possible, a straight pipe would be ideal but as you know this is impossible on a bike, this needs to be smooth so as to allow the backpressure to force new fuel back into the exhaust port without being disturbed. Note the amount of welds on the JL this is what they have shown here as an example of a smooth front pipe.

Obviously the width of the pipe matters, a fat (strong) bellied expansion chamber will aid an engine with low compression, and a thin body if it has relatively high compression. You will notice it is a medium width due to the rs having a mid range compression ratio, so as you can see it has been designed with a standard to race tuned barrel in mind.

The rear cone should be double the volume of the barrel itself, the barrel is 124cc so rear cone should be 248, this is to make sure the expansion rate is perfect for the cc size, this is why people recommend custom pipes after fitting big bore kits.

at the end of the rear cone there will be a link pipe which goes to silencer/s this needs to be as straight as possible to avoid deflecting the back pressure waves, which the JL single and twin manages well. But the single has a slight advantage.

As for it being SS. The Mild steel expansion chambers also expand just like all materials do on this planet when heated. So whats your point. He will have designed this, with this in mind, dontya think.

You all talk a load of bullshit, dont talk crap about a subject you know nothing about.

[pinky]

lol these lot a bunch of dumbarse nick ? lol

[mchaggis]

[LorryDriver]

lmao, I've just realised how badly these 4t bummers contraditc themselve's...

There saying the only advantage of the JL is the looks, but it should have a mild steel expansion which looks worse but performs better! hahaha



It is also interesting to see how cpl_redbarron has been completely defeted by Nickrs's post, has been made to look stupid, and has no comeback so therefore just rates Nick's post as 'Abusive', *shakes head* what a tw*t.

[mr jamez]

[Dom_]

^^Yup i agree there, but the total spent on performance mods was something like £700, the most important part ahs not been carried out yet - Things like setting the squish and fine tuning, this may add 1-2hp to the total bhp. To all you 600cc+ 4T owners who think that power is everything then you may think that 1-2hp is nothing, but on a bike weighing 120kgs dry then it is a lot.

Not everyone opts for the simple "i want more power so ill get more cc's" this view - i have noticed is shared by many people on BCF which is fine by me and its up to them, but i dont see why they should then argue that buying a performance exhaust for a small cc bike is "a waste of money" and say things like "it wont add performance" When if you actually knew anything about 2 strokes or how they work then you will realise that YES it will add performance.

All i am trying to say is that if you dont know anything about 2 strokes, or anything about the exhaust manufacturer Jim Lomas, then please do not make stupid un-informative and useless comments like as said above.
And why do you big cc bikers have no respect for smaller cc'd bikes?

[jayluvmito]

hmm..so you dont mind paying £400 for a titanium can to add 1-2hp to your 600's, but moan when the man wants to buy a decent exhaust for his bike....

people like you lot are just snobs who like to have a big bike as they think it makes up for there tiny cock...

fucking idiots...


maybe,..one day u will grow up...
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one day...

[18aprilia]

just one thing...........


























"2 Stroke Poweh Rullllezzzzzzzzzzz"

[mr jamez]

God I have never heard such a load of bollocks in my life, I very much doubt it is a case of *disrespecting 125's* or hating them, the fact is that spending £1000 on tuning for a 125 is not cost effective. You can buy a 400cc for £600 with twice the power, or a 250cc two stroke for £500. After seeing the dyno results, you can't argue that the mods don't give very good results, the exhaust must add what 0.5hp/1.0hp?

Granted some people want to tune them up, but you lot always come out with the same shit about hating 125's and don't respect other peoples opinions on the subject when the facts are staring you in the face Most people on this forum have moved on from 125's, they have no interest in them and much more experience than any of you so perhaps you should listen to them rather than slagging them all off?

I just see my 125 as a means to an end, the route to a bigger bike, which is why I would never put any tarty bits on it

And lorrydriver Stop getting so upset, no need to rate my posts abusive now is there

EDIT: oh and jayluvmito I don't think anybody in this thread has a 600cc? or a full titanium system? half of the people who posted in this topic have two strokes

Another null and void post?

[Dom_]

[mr jamez]

Yes I did read your post, it was worth reading However that backed up my statement that tuning 125's is not worth it, in my opinion of course.

I am not disputing the fact that many people want to tune them

[bikedudextrm]

I think they look pretty cool, they cost a lot of money and don't really make much difference, i had a single JL on my old rs125 but it came with it and my bike wasn't much faster than a mates rs125 which had the standard pipe. Most of the difference if any will be in your head.
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https://www.bikepics.com/members/bikedudextrm/

[Ste]