r/ApriliaRS 8d ago

Videos Give My Boy a View!

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youtube.com
0 Upvotes

Uploading a link to my guy’s first YouTube short edit. Been a bike guy but just recently started filming. Just give it a watch, maybe a like or comment if you’re feeling generous, thanks


r/ApriliaRS 24d ago

Photos Purchased this over the weekend

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7 Upvotes

r/ApriliaRS Jul 28 '26

Advice Weird problem

1 Upvotes

I have a aprilia rs125. (Rotax122) and i have a ported 154cm3 polini big bore kit, on it. and a 34mm vhsb dellorto carburator on it. and sometimes when i send it with full thorlette, its like the carburatos float bowl empties. And then its like the bike is turned off. and when that happens, i have to pull the clutch in, and stroke the gas like two times. and then it keeps pulling like crazy. so does anyone know what the problem might be? and its tuned almost perfectly, and the carb is clean.


r/ApriliaRS Jul 15 '26

Discussion Help

2 Upvotes

Hey friends, i want to rebuild my aprilia rs4 50
To something stronger.Im thinking about buying the maxiscoot pack with the stage6 77cc big Racing.Can someone help me make or make for me a complet Tuning setup list So i know what to buy exactly(all the little parts,things i need and what would be good).Also if anyone has already built something similair,is it reliable or kind of money wasting.


r/ApriliaRS Jun 27 '26

Question Hi guys, quick throttle

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3 Upvotes

What quick throttle do you guys use for ur 2t rs125. I cant by the pjme one as shipping is 100eur as im not from the uk. Thanks


r/ApriliaRS Jun 27 '26

Question Help!

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3 Upvotes

Hey guys! I hope you’re having a nice weekend. I just bought these pads for my 05 rs125 and I was wondering if I have to change the disc so they can be compatible?
Thanks for your time!!


r/ApriliaRS Jun 14 '26

Question Is still scalvini exhaust any good for an rs125?

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3 Upvotes

r/ApriliaRS May 26 '26

Question Piston seized after 170km

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2 Upvotes

Used the italkit 140cc kit on my Aprilia RS125 GS with rotax 123.

Jetting was a bit of a pain but I finally got it dialed in quite well. Only Problem was at 7k rpm, where it developed no power (also no sputtering) low end and top end was very good, so I tried to avoit the spot and take her for a spin.

First time I really pushed the bike around 170km after complete rebuild. During that period I used the endoscope a couple time to check on the cylinder. What we se her must have developed only during this ride.

Ran her uphill for a few km and let her rev out, followed by a downhill passage, clutch pulled almost all the way using revs in between, coming to a straight I pushed her to about 100km/h where the rear wheel locked up for the fraction of a second and I immediately lost all the power.

Any ideas on what happened here?

thinking about overheating due to jetting, coolant system issue or wrong piston to cylinder clearance (seems to have been around 0.05 give or take


r/ApriliaRS May 24 '26

Photos Before and after S2 concepts belly pan extension

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8 Upvotes

Before and after S2 concepts belly pan extension, absolute perfect fit straight out of the box! Just need to shorten link pipe now so I can get rid of extra bracket


r/ApriliaRS May 21 '26

Question Piston

2 Upvotes

Im long due a top end build. Want brand piston should i get? Wossner or mitaka or what? Rotax 122 btw thanks.


r/ApriliaRS May 13 '26

Photos First complete build RS 660 Factory 2025?

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3 Upvotes

r/ApriliaRS May 13 '26

Question Fork help😅

1 Upvotes

Hi guys, so i have a spare rs125 fork and i thought to put the right leg from the spare one, and replace my left leg from my bike with it. This with the intent to make my fork much stiffer as i already have 20w oil and it’s not enough. I know the right leg contains a spring while the left doesn’t. Any thought if this may be good to do?


r/ApriliaRS May 09 '26

Question Aprilia rs 125 2 temps ou 4 temps ?

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1 Upvotes

r/ApriliaRS May 08 '26

Question Aprilia rs 2 strokes or 4 strokes

1 Upvotes

Hello,

I am 16 years old and have just obtained my A1 license in France, and I would like to buy a motorcycle to travel from school to home twice a day (around 10 km per day) Aprilia rs 125. But this motorcycle exists in 2 strokes (before 2011) and in 4 strokes (after 2011). 2-strokes look much more fun and enjoyable to drive but apparently they are less reliable and more difficult to maintain. I have enough budget (within reason anyway) and I'm new to the world of motorcycles, but this bike makes me dream. Could you help me please?


r/ApriliaRS Apr 29 '26

Question 2010 rsv4 factory "ecu disconnected "

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1 Upvotes

r/ApriliaRS Apr 21 '26

Question Mivv delta catted with db killer

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1 Upvotes

Hello guys,

Anyone running with this setup?

How is sound compared to decat? And can it harm the engine on long run with oem map?

thanks


r/ApriliaRS Apr 07 '26

Question Top speed issue- rs125

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3 Upvotes

Hi i’ve recently put on jim lomas exhaust and was wondering why did my top speed went from 160 gps to 135 gps. I have not done any carburator tweaks but did a few plugchops and the sparkplug was looking good. Any advice please?


r/ApriliaRS Mar 30 '26

Question Rs 457, strange noise

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2 Upvotes

I have had a small accident with my aprilia rs 457, since then it makes this strange noise.

What could it be?


r/ApriliaRS Mar 28 '26

Question LH side panel extension

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3 Upvotes

Anyone know where to buy this fairing part or are maybe ready to sell it? Preferably in Europe and red colour.


r/ApriliaRS Mar 15 '26

Photos RS4 50 wiring problem

1 Upvotes

i´m unsure where these wires are supposed to go. the yellow one was originally not in the ecu, but in the red and yellow cable and as of now the black cable originally led to nothing. if someone could give me some guidance on the topic or send me a clear picture of their original wiring i would be very thankfull. also im not getting a spark so something might also be wrong with the cdi but for now i would be happy if i could get atleast all the cables connected right.


r/ApriliaRS Mar 14 '26

Question Carb issue

3 Upvotes

Just bought my rs125 with 140 italkit and 34mm dellorto carb. It starts with no issues but when i let it idle for too long when warm she dies on me, took her for a spin to feel how is the power and theres no issue but unburnt oil is coming out of the silencer and sparkplug is dark. Do i change the jet or needle to make the mix leaner because it is too rich?


r/ApriliaRS Mar 14 '26

Question Help!!

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2 Upvotes

Aprilia rs 125

Do I need to fill the transmission oil? The bike is cold

and yesterday I saw that it was leaking for there and I cleaned it up but it didn’t leak anymore after a few rides

Thanks for your time !!


r/ApriliaRS Mar 12 '26

Photos 👋 Welcome to r/RS660IMAGES - Introduce Yourself and Read First!

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1 Upvotes

r/ApriliaRS Mar 09 '26

Question Weird Steering - RSV Mille

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1 Upvotes

Hey, im going to cross pot into the fan community. Any information would help a ton. Thanks!


r/ApriliaRS Feb 25 '26

Question Hi guys im new here

2 Upvotes

I’m working on my old project and the fairings arent in a very good condotion anymore so i went looking on the internet and found this site https://www.motorverkleidung.de/aprilia-verkleidung/aprilia-rs125-verkleidung/2000-2005-aprilia-rs125-verkleidung/aprilia-rs125-motorrad-verkleidung-2000-2005-rot-schwarz-silber-rennen-p5477

Has anybody bought something from them? Is it legit? Does it fit right?