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» [Oldies] Quizz (26)
wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 40 Icon_minitimeAujourd'hui à 20:55 par bubu

» [SORTIES] Sunday Ride Classic 2022, 11 et 12 juin
wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 40 Icon_minitimeAujourd'hui à 20:26 par Joel Enndewell 2424

» [Oldies] 250 PERNOD
wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 40 Icon_minitimeAujourd'hui à 9:34 par Ed

» (Oldies) Un Pépé, des coques (et accessoirement des poutres)
wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 40 Icon_minitimeHier à 19:19 par yves kerlo

» [Oldies] Un petit bout de l’histoire Morbidelli, 1977-1979
wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 40 Icon_minitimeHier à 18:32 par spreyer

» [MotoGP] GP de France 2022 au Mans - Les 13 , 14 et 15 Mai 2022
wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 40 Icon_minitimeHier à 16:06 par EDOUARD Jean

» controle technique moto
wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 40 Icon_minitimeHier à 15:56 par cat

» [Oldies] Les Suzuki d'usine 50 et 125cc à Bourg en Bresse en 1966
wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 40 Icon_minitimeHier à 10:50 par pascaltz

» [SORTIES] Vintage Revival Montlhéry mai 2022
wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 40 Icon_minitimeHier à 10:08 par Dan42

» [Oldies] Jarno Saarinen, la star qui a revolutionné le pilotage (Part 5)
wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 40 Icon_minitimeJeu 19 Mai 2022 - 22:41 par DidierF

» [Oldies] Les transporteurs de motos des paddocks
wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 40 Icon_minitimeJeu 19 Mai 2022 - 22:13 par closed

» [Oldies] Des livres sur la course moto
wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 40 Icon_minitimeJeu 19 Mai 2022 - 21:57 par DidierF

» [ oldies ] Les photos de Roger Lohrer
wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 40 Icon_minitimeJeu 19 Mai 2022 - 20:15 par spyderman 32

» Tom Dickie RIP
wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 40 Icon_minitimeJeu 19 Mai 2022 - 11:33 par philwood

» [Fiction] Steak...
wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 40 Icon_minitimeMer 18 Mai 2022 - 14:03 par janpol84

» Mais pourquoi le pneu AR est plus large?
wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 40 Icon_minitimeMar 17 Mai 2022 - 20:26 par justin

» CONTROLE TECH
wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 40 Icon_minitimeMar 17 Mai 2022 - 19:54 par Mykeul

» [Technique] Honda racing des sixties
wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 40 Icon_minitimeMar 17 Mai 2022 - 16:59 par Dialmax

» Le petit avantage de la Bestia.
wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 40 Icon_minitimeMar 17 Mai 2022 - 14:08 par Aragon

» North West 200
wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 40 Icon_minitimeMar 17 Mai 2022 - 7:57 par Aragon

» [Oldies] Honda 6
wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 40 Icon_minitimeLun 16 Mai 2022 - 18:01 par T54

» [Pit Laners en course!] Clément Révolte (coupe YAMAHA R125)
wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 40 Icon_minitimeLun 16 Mai 2022 - 14:01 par BOOZE

» Alain Michel
wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 40 Icon_minitimeLun 16 Mai 2022 - 13:24 par janpol84

» Honda Monkey
wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 40 Icon_minitimeDim 15 Mai 2022 - 11:03 par Joel Enndewell 2424

» [MotoGP] GP 2022 d' Espagne à Jerez - du 29 - 30 Avril et 1er Mai 2022
wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 40 Icon_minitimeSam 14 Mai 2022 - 11:39 par philwood

» [Oldies] Les Aermacchi deux temps
wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 40 Icon_minitimeSam 14 Mai 2022 - 8:05 par dulas frederic

» [Oldies] Circuit Bourg en Bresse 1971
wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 40 Icon_minitimeVen 13 Mai 2022 - 12:45 par DidierF

» [Oldies] Questions (vitesse 1947-1976)
wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 40 Icon_minitimeVen 13 Mai 2022 - 5:44 par berlu

» [SORTIES] 19 et20 mars 2022 ISSOIRE
wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 40 Icon_minitimeJeu 12 Mai 2022 - 15:35 par Niko

» [Oldies] Honda 50 twin RC113/114/115 /116
wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 40 Icon_minitimeJeu 12 Mai 2022 - 13:27 par T54

La réclame...
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Marc
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EDOUARD Jean
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philwood
wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 40 Voting16wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 40 Voting13wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 40 Voting15 
mickey
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Pierre"PhilRead"
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yves kerlo
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Fügner
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Jarno
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 [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4)

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106 participants
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AuteurMessage
ambike




Nombre de messages : 57
Localisation : DFW,Texas
Date d'inscription : 15/11/2013

wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 40 Empty
MessageSujet: Re: [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4)   wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 40 Icon_minitimeLun 24 Aoû 2015 - 8:30

Edited by Marc > wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 40 324787
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Polux rsv




Nombre de messages : 728
Localisation : Par ici
Date d'inscription : 29/09/2012

wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 40 Empty
MessageSujet: Re: [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4)   wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 40 Icon_minitimeLun 24 Aoû 2015 - 9:53

wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 40 55116

wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 40 1768664114     wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 40 498886


Angelo
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Dan42




Nombre de messages : 7708
Localisation : Margerie-Chantagret 42
Date d'inscription : 06/04/2014

wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 40 Empty
MessageSujet: Re: [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4)   wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 40 Icon_minitimeMar 25 Aoû 2015 - 7:16

Hummm, l'avait l'air fâché notre ami d'outre Atlantique! pour une petite phrase maladroite ou mal comprise?
Dan
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Howard Gifford




Nombre de messages : 140
Age : 66
Localisation : Ottawa Canada
Date d'inscription : 01/05/2012

wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 40 Empty
MessageSujet: Re: [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4)   wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 40 Icon_minitimeMar 25 Aoû 2015 - 13:01

Could the internals be similar to this engine?
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Howard Gifford




Nombre de messages : 140
Age : 66
Localisation : Ottawa Canada
Date d'inscription : 01/05/2012

wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 40 Empty
MessageSujet: Re: [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4)   wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 40 Icon_minitimeMar 25 Aoû 2015 - 13:11

[Vous devez être inscrit et connecté pour voir ce lien]

here is the running engine based on an 800 rotax. note the spacer under the cylinders
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Howard Gifford




Nombre de messages : 140
Age : 66
Localisation : Ottawa Canada
Date d'inscription : 01/05/2012

wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 40 Empty
MessageSujet: Re: [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4)   wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 40 Icon_minitimeMar 25 Aoû 2015 - 13:37

Here is some section views of the piston assembly. Note the pseuto piston has no rings and transfers all the thrust to clean cylinderwalls with no ports. The actual piston head is bolted to the shaft portion. The whole piston assembly looks a bit heavier than a conventional piston but not a lot when it is all trimmed out to the max
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Dan42




Nombre de messages : 7708
Localisation : Margerie-Chantagret 42
Date d'inscription : 06/04/2014

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Very interresting design whith " steam engine" pistons, we can suppose that Ryger design is close to this, but without drawings???????
Dan
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Bob van der Zijden




Nombre de messages : 94
Localisation : Hollande
Date d'inscription : 10/09/2013

wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 40 Empty
MessageSujet: CITS vs RYGER   wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 40 Icon_minitimeMar 25 Aoû 2015 - 15:50

Dan42 a écrit:
Very interresting design whith " steam engine" pistons, we can suppose that Ryger design is close to this, but without drawings???????
Dan




Dernière édition par Bob van der Zijden le Lun 14 Sep 2015 - 10:53, édité 1 fois
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Sabijator

Sabijator


Nombre de messages : 12
Age : 38
Localisation : Croatia, Trogir
Date d'inscription : 01/07/2011

wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 40 Empty
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This engine is big riddle but also looks simple wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 40 771973
Probably: piston is lubricated with oil from crankshaft chamber, so it can have much better lubrication for hi rpms, piston is longer and crank webs(counterweight) have smaller diameter, when piston is in TDC transfers are also closed under the piston-so no mixing crank oil and fuel, upper part of the crankcase looks classic as we can see shape for transfers and oil groove for main bearing, lower piston ring is not close to upper one?
Front side of carter is mysterious-something goes there-vacum pump?
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Dan42




Nombre de messages : 7708
Localisation : Margerie-Chantagret 42
Date d'inscription : 06/04/2014

wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 40 Empty
MessageSujet: Re: [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4)   wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 40 Icon_minitimeJeu 27 Aoû 2015 - 6:38

Sabijator a écrit:
This engine is big riddle but also looks simple wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 40 771973  
Probably: piston is lubricated with oil from crankshaft chamber, so it can have much better lubrication for hi rpms, piston is longer and crank webs(counterweight) have smaller diameter, when piston is in TDC transfers are also closed under the piston-so no mixing crank oil and fuel, upper part of the crankcase looks classic as we can see shape for transfers and oil groove for main bearing, lower piston ring is not close to upper one?
Front side of carter is mysterious-something goes there-vacum pump?

Not certain for a vacum pomp, i think it's the genuine inlet duct connexion of a quite standard crankcase, it looks very similar with VM 125 kart engines ( Czech Rep.) The cylinder also seems very similar, excepted the inlet duct added in a high position.
Dan
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yesyes




Nombre de messages : 27
Localisation : nancy
Date d'inscription : 25/06/2014

wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 40 Empty
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Hello,

Considering the Ryger engine picture and if the large crankcase volume is not longer connected with the cylinder and intake track, the different maximum volumes of the elements implicated in " the helmoltz blues of Frits Overmars " ( intake, tansfer ducts, cylinder ) look nearly the same.

It could also ease the global breathing in shortening the travel of the fresh charge and allow some sort of 4 stroke lubrification for the crankshaft.

Does this kind of balance between the maximum volumes of each part play a role in the working efficiency of the globality ?

Thank you
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Phytus

Phytus


Nombre de messages : 646
Localisation : Monségur
Date d'inscription : 22/06/2012

wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 40 Empty
MessageSujet: Re: [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4)   wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 40 Icon_minitimeJeu 27 Aoû 2015 - 13:36

I can't understand 30000rpm with a "standard" 54mm stroke.
What about the piston speed?! It's quite over 26m/s ...
The acceleration will be awsome at TDC or BDC isn't?


scratch

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Frits Overmars

Frits Overmars


Nombre de messages : 2485
Age : 73
Localisation : Raalte, Holland
Date d'inscription : 12/10/2010

wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 40 Empty
MessageSujet: Re: [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4)   wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 40 Icon_minitimeJeu 27 Aoû 2015 - 16:18

Phytus a écrit:
I can't understand 30000rpm with a "standard" 54mm stroke. What about the piston speed?! It's quite over 26m/s ... The acceleration will be awsome at TDC or BDC isn't? scratch
Yes wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 40 809262
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Dan42




Nombre de messages : 7708
Localisation : Margerie-Chantagret 42
Date d'inscription : 06/04/2014

wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 40 Empty
MessageSujet: Re: [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4)   wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 40 Icon_minitimeJeu 27 Aoû 2015 - 16:53

Sure, if I don't make a mistake, at 30000Rpm, with a piston +crankpin of 200gr, the connecting rod supports tension and compression loads of around 3700 daN, incredible on such small 125cc parts. 200gr is probably wrong: too light. wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 40 809262
Dan
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Phytus

Phytus


Nombre de messages : 646
Localisation : Monségur
Date d'inscription : 22/06/2012

wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 40 Empty
MessageSujet: Re: [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4)   wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 40 Icon_minitimeVen 28 Aoû 2015 - 9:18

Yes ?! ... wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 40 438659
It's awsome or it's "here" that we must seek an answer idea? scratch

wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 40 101130 wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 40 3186062340
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Phytus

Phytus


Nombre de messages : 646
Localisation : Monségur
Date d'inscription : 22/06/2012

wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 40 Empty
MessageSujet: Re: [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4)   wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 40 Icon_minitimeVen 28 Aoû 2015 - 9:34

Dan42 a écrit:
Sure, if I don't make a mistake, at 30000Rpm, with a piston +crankpin of 200gr, the connecting rod supports tension and compression loads of around 3700 daN, incredible on such small 125cc parts. 200gr is probably wrong: too light. wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 40 809262
Dan

Tu obtiens ça comment?! wanted - [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4) - Page 40 55116
Il y a accélération et décélération à chaque point mort ...

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» [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 5)
» [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 5)
» [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 2) (Locked)
» [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 1) (Locked)
» [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 3) (Locked)

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