FXR 150 tuning

[hmurphy]

Well, the rims arrived the other day. All I can say is that I am very happy! I can use my original fxr axles. I can use my sprocket carrier with cush. However I need to modify the carrier a little to bring it closer to the wheel to line it up with the front sprocket. The biggest problem I face right now is.... I don't have a front brake disk to fit my ZZR rim. I am trying a whole bunch of ideas to fit my FXR disk, but it is all a bit... hard to do. However if someone wanted bigger rims for their FXR, I can say that ZZR rims (as long as they come with the freakin' disks!) aren't too hard to fit!

I tried going through a shop for a disk.... $460. No thank you. Would anyone have a ZZR disk they wouldn't mind selling? Cheers

[Skunk]

Front or rear? I don't have a ZZR disc but I do have disks. One might fit.

[hmurphy]

Front disk. But a rear might be needed too, just not as urgently! You are a legend, PM on its way.

[k14]

Oh ok! Very interesting. I was in need of a wheel replacement (front only really) because the rim was very nicely bent so I thought I would just get fatter ones. I am hoping my rear slick will fit straight on to the ZZR rear wheel (3.5 rim with a 115/70 tyre - am I dreaming?). Most of this year will just be testing for myself and for the bike. At the moment, the bike doesn't quite suit me and so I will keep modifying/tweaking it.

FYI those tyres are made to be run on a 3.5 inch rim. The standard RS125 wheel sizes are 2.5 inch front and 3.5 inch rear. So if you have that then you are running them at the perfect profile!

[hmurphy]

Oh cool. The rims are actually 2.15 front and 3.5 rear. Advertised incorrectly for the front, but no matter! It is still wider and NOT BENT! Yay! But yeah... just need disks. Cheers

[k14]

Oh cool. The rims are actually 2.15 front and 3.5 rear. Advertised incorrectly for the front, but no matter! It is still wider and NOT BENT! Yay! But yeah... just need disks. Cheers

Yeah 2.15 is fine, its slightly off but not enough to matter on a bucket. Good luck with the fitment!

[hmurphy]

Cheers! I think I will be needing lots of luck! Would I be able to come over sometime Skunk and have a look at some of the disks you have got? I would like to buy one off you if you have something to fit my ZZR250 front rim.

[hmurphy]

Ok so Skunk was nice enough to lend me his spare ZXR250 disk to see if it would work on my ZZR front rim. It mounts perfectly!! However I need to relocate the caliper in order to use the disk, and therefore buy the disk off Skunk (don't worry, I am not going to disappear with it! Promise!). The caliper needs to come inward towards the wheel and upward toward the clip-ons because the disk is larger in diameter than the old FXR disk.

Does anyone have any experience with this? It is very precision and I doubt I would be very good at doing it without guidance.
Also, Skunk thinks the disk may be bent or warped. I will find this out once I use it for the first time, and if it is bent then I also might need a hand straightening it. If it is warped I will head out to my garage now and set fire to the damn bike.

He also lent me some spacers to try and use. They were perfect and the front wheel is all lined up and is ready for the disk! Cheers Skunk, you da man. How many beers do I owe you?

[Kendog]

Cheers Skunk, you da man. How many beers do I owe you?

Bourbon for that man

Nice work.

[Skunk]

The caliper needs to come inward towards the wheel and upward toward the clip-ons because the disk is larger in diameter than the old FXR disk.

Does anyone have any experience with this? It is very precision and I doubt I would be very good at doing it without guidance.

I think every bucket builder has done it at some time.

Basically you're looking at cutting a plate that aligns the two sets of holes. I've done this to my AX1R (now the SX-1) and the TZR-F6. I'll see if I can find some photos. Use 8-10mm alloy or 6-8mm steel. Of course it all depends on what offset and distance it needs to cover too. Think about the direction of the forces being applied.

[hmurphy]

Oh cool cheers!! I will buy some tomorrow! I will txt my mate now and see if he can sell me some scrap 6-8mm steel plates or something.

[hmurphy]

Some footage of the progress. Not that interesting really, but I think that the new pipe is killer:
http://www.youtube.com/watch?v=qNhL1vwK0Io

[Sketchy_Racer]

Yes I think you should definitely bucket race "that" hahaha

[hmurphy]

Ok... very very close to being finished, I just need a new front disc!!! The rotor I have borrowed for testing from Skunk is definately bent or warped and straightening it has proven to be very very difficult.

Does anyone have a ZZR 250 front rotor or ZXR 250 front rotor with 5 mounting holes that I could buy? Infact I have noticed a lot of Kawasaki bikes are running the same or similar front disc so if someone has a kwaka one they could sell me I would be interested. I have searched ebay and trademe a fair few times and nothing as of yet. I have a rear disc now, just need a straight front one! http://www.kiwibiker.co.nz/forums/sh...ad.php?t=99774

Cheers guys, I wanna get out there and race!!!!!

[Buddha#81:Me]

We what to see photos of the beast!!!!!! NOW!