500 Two-Stroke Tech

500cc GP-Replica Tech Forums

Search  FAQ  Register Login
It is currently Sat Oct 20, 2018 8:45 pm

All times are UTC - 4 hours [ DST ]




Post new topic Reply to topic  [ 18 posts ]  Go to page Previous  1, 2
Author Message
 Post subject: Re: need help identifying my newly acquired RG 500
PostPosted: Tue Apr 10, 2018 12:25 pm 
Offline

Joined: Wed Feb 14, 2018 4:22 pm
Posts: 8
A couple of sr500s
2010 nicky hayden #69 of 150 with 1 mile on it
1975 ossa desert phantom
71 penton six day
fun day! a lot of beautiful bikes

_________________
85rzv500
87rg500
85rz350
79-400f
10 Ducati 848 Nicki Hayden
79sr500
71 Penton six day 125
17 six day 450
70 ossa stiletto
72 CZ 250
77 Ossa Desert Phantom
78 Maico 250
18 CTS-V 640 hp


Top
 Profile  
Reply with quote  
 Post subject: Re: need help identifying my newly acquired RG 500
PostPosted: Sun Apr 22, 2018 4:00 am 
Offline
User avatar

Joined: Thu May 21, 2009 3:27 am
Posts: 67
Location: Sweden
Congratulations with your new Gamma.

I can confirm for you that the frame and engine case is from a RG400. The K in the frame and engine number nominate that. They have most probably been together since they left the factory as the last digits are relatively close to each other numerically. They where never numbers matching ex works.

To convert a 400 to 500cc is fairly easy if you have the 500 cylinders/piston and head. Then the only modifications is to machine the top case to take the larger diameter cylinders. That said there are a lot of small subtle differences between 400 and 500s and particular with the early ones as yours. 400s came closer to the 500 during the production run. Your bike is also an early one. The 13xx/15xx in the numbers gives that away so it is manufactured in 1985.

To high price? As they say in the classic car world: you bought to soon :-)

_________________
RG500G 85
RG500G 86
RG500G 86
RD500LC 1GE
RD500LC 47X
RZV500R 51X


Top
 Profile  
Reply with quote  
 Post subject: Re: need help identifying my newly acquired RG 500
PostPosted: Sun Apr 22, 2018 8:07 am 
Offline

Joined: Fri Sep 02, 2011 7:02 pm
Posts: 330
Location: UK
In the UK at least buyers now seem less bothered with a frame or engine number, which makes complete sense as there is no difference between the frames and cases (once the upper case has been bored)
The 400 cases get a much easier life.


Top
 Profile  
Reply with quote  
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 18 posts ]  Go to page Previous  1, 2

All times are UTC - 4 hours [ DST ]


Who is online

Users browsing this forum: No registered users and 6 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group