top end speed kymco super 8 , 125cc

[i feed ma cat]

Hi everyone , as written in the title that's the bike i got and i would like to get an advice regarding aftermarket exhausts which would increase its top speed.
Currently it goes 65mph on a flat , but i would like it to go 70-75 so i can keep up on motorways ( ill be keeping the scooter after passing my moto test ).
I know the main brands on the market , but i have been googling a lot and saw other different brands but its mostly i have no idea which one would increase its top speed cause the current stock exhaust isn't meant for performance.

Thank you.

P.S. another thing , i just want a cool exhaust

[dungbug]

You'll need a combination of exhaust, carb re-jet and different rollers. Save your money & get a license & buy a bike that can (easily) keep up with motorway traffic.
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CBT: Pass 25/06/2011 Theory Test: Pass12/06/2012 Mod 1: Fail 08/07/2012
Mod 1 Retest: Pass 15/0702012 Mod 2: Pass 03/08/2012
Suzuki GN125 (Sold) ~ Current bike: Yamaha YZF 600R Thundercat

[Moo.]

I doubt your gunna be able to get a 10mph increase without spending some serious £££ on it. Your best bet is as said, pass your test and get a bigger bike
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A2 Passed 18/6/10

[nightshaddow]

you are fighting a loosing battle with the super 8, there are a few "performance" parts out there but as said an exhaust alone wont improve it much as they are not restricted anyway
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"WHAT DO YOU MEAN 100 MPH THATS IMPOSSIBLE Its chinese OFFICER."
Current rides CB 125 TDE(the next project) NS125RK ( now on the road ) CB125TDC (soon to be project 17) melody ( the nephews )

[stevo as b4]

Unless you can take that engine out to circa 200cc easily and cheaply, and get transmission parts like gear up kits, you are onto a complete loser in the extreme.

How any carb/intake/exhaust tuning is going to affect the top speed of a 4stroke scooter is totally beyond me.

[Teflon-Mike]

So you can keep up on motorways?
Well, Learner Restrictions prohibit any-one with provisional entitlement using motorways, so we must presume you have a full licence....
In which case, the simplest way to go faster, is get a bigger scooter.....
Small gains to be found from tuning any small bike to be honest, and big difference to being able to 'do' 70-75, and being able to comfortably hold 70-75.
If you only just have the power to 'do' that speed, then any headwind, hill, truck buffet whatever, is going to slam you back....
An extra 10mph 'max' speed is likely to only realistically give you an extra 5mph of comfy cruising speed.
And TBH, if you are going to use a lightweight on a motorway...
all you need is a 55mph cruising speed.
Get in the truck lane, stick with the convoy and try not to go to sleep.
You ent going to have the grunt to try dicing it with Middle~Lane Mondeo man, or the Outside Lane bullies, and would be a fol to try, most of the time.
70 is a speed limit, not a target, no one says you HAVE to go that fast, and a lot of traffic doesn't, and much of it wouldn't be allowed to anyway.... HGV's are legally only allowed to do 60, and strictly, so is anything else dragging a trailer, or classed as a 'commercial vehicle' which includes transit vans, and Astra estates with the back windows not punched out!
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My Webby'Tef's-tQ, loads of stuff about my bikes, my Land-Rovers, and the stuff I do with them!
Current Bikes:'Honda VF1000F' ;'CB750F2N' ;'CB125TD ( 6 3 of em!)'; 'Montesa Cota 248'. Learner FAQ's:= 'U want to Ride a Motorbike! Where Do U start?'

[lihp]

[Shinigami]

pointless trying to 'keep up' on a 125, get something bigger
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Current: Honda City Fly CLR125 2003 Honda CB600F Hornet 2008 Yamaha FZ6 S2 + 1991 Kawasaki GPZ500
"Once you realize what a joke everything is, being the Comedian is the only thing that makes sense.

[G]

[i feed ma cat]

Thank you for your answers , the thing is i want to keep this scooter cause its really nice one and i dont want to go over 70mph. Its just i was thinking to get some parts to make it at least keep up at the motorways.

But overall any good exhausts which should fit this scooter?
I was looking at tecnigas exhausts which looks kinda sporty and doesnt sound too bad.

Another thing , how does changing air filter to KN or how its called affects the bike ?

[Jafmandaddy]

Two brothers exhausts

https://www.twobros.com/


Its a 4 stroke so no need to worry about compression waves and other such things..

essentially if your venting at a different rate ( higher in this case) you need to increase the airflow in.

An aftermarket air box/filter like a K an N would increase the surface area of the filter and thus the flow of air would be greater.

This would then need to be balanced by increasing the amount of fuel added to the mixture.. re balance of your carbs?

otherwise you could spend £300 and go slower.. which would be sh1t.

im not an expert but having owned more 125's than most men my age I can safely say that I fully agree with the chaps above.

a scooter like tat is designed to be quick of the mark and agile.. not to cruise in a straight line at 70mph.

however if you are set on the upgrade


air in air out and fuel mix need to be tweaked.

id just chop the exhaust of 2 feet from the manifold and rip the air box out then see how fast you go until it rains!

[G]

Or drill the baffles and get a plate made up saying "well expensive, innit" .

[TheSmiler]

[Pol Anorl]

[dungbug]

[i feed ma cat]

Thank you for all replies , you have answered all my questions.
Regarding 125 and motorways , when ill pass my bike test ill be keeping scooter cause i love it too much

[G]

[P.]

[WannaBeDude]

P.S. another thing , i just want a cool exhaust


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Jogging on, destination living.

[TheSmiler]

[Alpha-9]

Ahaha that's the rental thing I was put on

ITS FUCKING HORRIBLE
SELL IT SELL IT SELL IT OR BURN IT

Did I mention burning it?
No it wont go faster without pointless amounts of time effort and money.

It's really nice?! Seriously?! It's a chinese piece of shit with shit brakes, shit lights, shit suspension and shit looks.
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Fzr-600 1999

[stevo as b4]

I agree that a lot of these CG/GS125 clone bikes from china are not making more that 2/3 of the allowed 15bhp. That limits their speed to CG125 levels or a bit worse in some cases. There are 125's out there that are like 9-10bhp, and these will be marginal for fast roads and motorways.

A 15bhp sporty faired 125 should manage a real 75mph in ideal conditions, and that's at least 15mph more than a poor CG/GS clone will in the same conditions.

I've ridden a CG125 for 30-40miles at a time on a motorway, and id say that you need to be able to reach 60mph and hold 55mph+ on hills to feel even remotely safe.

A bike that will do a real 70mph most of the time when ridden flat out is enough for safety, but anything less than the performance of a CBR125 or Vara 125, is a bit un-nerving IMO.

Maybe not as scary as holding a stage 3 tuned Mito flat out at 11k in top with a cold sleepy numb clutch hand tho?

[G]

[DMCpro]

Your lucky it's still running
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Honda CB-1, TS125X
VW Golf Estate

[Teflon-Mike]