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Rsv4 rear master on Ap rearsets

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wigginsjp View Drop Down
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    Posted: 17 May 2020 at 11:45
Hi all 

For those that have done the conversion....

If it’s not too much trouble can someone tell me the length of the rear cylinder pushrod you have? Mine is rather short and despite adjustment I don’t think it fully pushes the piston fully in if that makes sense. 

Thank you 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote roboxm3 Quote  Post ReplyReply Direct Link To This Post Posted: 17 May 2020 at 12:49
Please satisfy yourself that this works but I did some fag packet calculations for the RSV4 m/c on AP rearsets for my Gen1 and I got a 35mm push-rod with 15mm thread length, which should give you sufficient free thread to get a locking nut on there...

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Post Options Post Options   Thanks (0) Thanks(0)   Quote wigginsjp Quote  Post ReplyReply Direct Link To This Post Posted: 17 May 2020 at 12:59
Originally posted by roboxm3 roboxm3 wrote:

Please satisfy yourself that this works but I did some fag packet calculations for the RSV4 m/c on AP rearsets for my Gen1 and I got a 35mm push-rod with 15mm thread length, which should give you sufficient free thread to get a locking nut on there...


Super ! 

Thank you that’s what I need 👍🏻😁
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Post Options Post Options   Thanks (0) Thanks(0)   Quote roboxm3 Quote  Post ReplyReply Direct Link To This Post Posted: 17 May 2020 at 13:03
No worries... I’ll update next week but I’ve just bought a tapered head Ti M6 bolt which I’m hoping will work once it’s had 10mm taken off and the head should sit nicely onto the plunger bearing in the m/c.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote wigginsjp Quote  Post ReplyReply Direct Link To This Post Posted: 17 May 2020 at 14:01
There we go 

Thanks again 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote roboxm3 Quote  Post ReplyReply Direct Link To This Post Posted: 17 May 2020 at 14:09
Let me know how that works out when you fit it please mate!
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Post Options Post Options   Thanks (0) Thanks(0)   Quote wigginsjp Quote  Post ReplyReply Direct Link To This Post Posted: 17 May 2020 at 14:21
Yup will do. 

Will measure the one I have already but I already know it’s shorter than this one I just made up. Once I’ve tested it then I’ll let you know results  

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Post Options Post Options   Thanks (0) Thanks(0)   Quote camngetit Quote  Post ReplyReply Direct Link To This Post Posted: 17 May 2020 at 17:45
Why the conversion what gains do you get 
its twins for me !!!!
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Post Options Post Options   Thanks (0) Thanks(0)   Quote roboxm3 Quote  Post ReplyReply Direct Link To This Post Posted: 17 May 2020 at 17:49
The AP rearsets relocate the master cylinder to help give you a working/consistent rear brake...the RSV4 master cylinder just looks sexier and incorporates the reservoir for a cleaner look...
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Post Options Post Options   Thanks (0) Thanks(0)   Quote camngetit Quote  Post ReplyReply Direct Link To This Post Posted: 17 May 2020 at 17:50
Gotcha already got the rearsets mught have to look out for a master cylinder 
its twins for me !!!!
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Post Options Post Options   Thanks (0) Thanks(0)   Quote roboxm3 Quote  Post ReplyReply Direct Link To This Post Posted: 17 May 2020 at 17:53
Apparently the same part is used on multiple KTMs (and probably a few other makes/models) and generally works out a bit cheaper, so have a look about see what you can find...you just need to keep the mounting hole centres the same...
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Post Options Post Options   Thanks (0) Thanks(0)   Quote legend88 Quote  Post ReplyReply Direct Link To This Post Posted: 17 May 2020 at 19:00
Here's mine, I used the KTM actuation rod designed for the job (Item 15 bottom pics).




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Post Options Post Options   Thanks (0) Thanks(0)   Quote wigginsjp Quote  Post ReplyReply Direct Link To This Post Posted: 17 May 2020 at 21:07
Thanks legend 

Good info 

What ktm is it off of? 

The off road bikes ? 

Thank you 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote legend88 Quote  Post ReplyReply Direct Link To This Post Posted: 17 May 2020 at 21:55

ktm part number  5481305600

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Post Options Post Options   Thanks (0) Thanks(0)   Quote roboxm3 Quote  Post ReplyReply Direct Link To This Post Posted: 17 May 2020 at 21:57
You’ll need a male rod end as well, as per #17 in the diagram...
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Post Options Post Options   Thanks (0) Thanks(0)   Quote legend88 Quote  Post ReplyReply Direct Link To This Post Posted: 17 May 2020 at 22:08
Just use the rod end that comes with the AP rearsets
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Post Options Post Options   Thanks (0) Thanks(0)   Quote roboxm3 Quote  Post ReplyReply Direct Link To This Post Posted: 17 May 2020 at 22:22
AP rearsets come with a female rod end... Part #15 in the above diagram is to work with part #17, which is a male rod end...
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Post Options Post Options   Thanks (0) Thanks(0)   Quote legend88 Quote  Post ReplyReply Direct Link To This Post Posted: 17 May 2020 at 22:45
Yeah, you can by one of those if you want. Me, I just cut the head off a bolt, one end into the AP supplied rod end and the other into the KTM rod. 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote wigginsjp Quote  Post ReplyReply Direct Link To This Post Posted: 22 May 2020 at 17:56
Thanks for the spec Robo 

The one I made up from that is absolutely spot on. I could take maybe a mm off it but it puts the pedal nice and high for stomping if I chose to. 
Yet to road test as my shock is not back yet but will soon 

Thanks for the part number legend. As a result I found you can buy genuine Brembo rear master cylinders for less than a price of a secondhand Aprilia item if you look hard enough. Direct from Italy for around £105 new. Admittedly it's off eBay and I know there was supposed to be non genuine Brembo masters floating about at some point 
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