FXR wheels

[r1johnkt]

Hi, I have just bought a FXR and was wanting some info on the wheels to run slicks. I've heard that RS125 fronts will fit both front and back? or some guys are changing to wider rims 2.5 in front and 3.5 at the rear. What type of wheels are you guys fitting to your FXR's ? Hope someone can help. Cheers John

[hmurphy]

I just did that conversion on my FXR. I put ZZR250 rims on the bike. 2.5 front and 3.5 rear. The bearing size matches the FXR on front and back, so the axle will fit on both rims, however you will need to do a fair amount of machining in some places, make a new front caliper mount and make new spacers. Other than that the rims spread the slicks properly!

[r1johnkt]

Thanks for the info! where is the best place to find such rims? Cheers John

[Pumba]

I have done a conversion using the GSX250 GJ72 wheels. The front is a 17x2.50 and the rear is 17x3.00. I run a set of ex 125GP slicks (95/70/17 front & 115/70/17). Personally I think this a pretty good profile and not based on any fact I feel the 3.50 would be too wide.

As for ding the conversion there are a few different ways people have done the rear, here is the tread I started when I was doing it (http://www.kiwibiker.co.nz/forums/showthread.php?t=83106)

As for the front, I replaced the whole front end cause my FXRs was crunched in a crash, and thats as easy as tighting up the stearing head.

[Pumba]

Ohhh, and another few comments, the GSXR wheels arnt the lightest wheels in the world (actully there fugin heavy bastards) so that is a bit of a down side, and there seems to be a bit of a demand for them and the market price is higher than I would consider resonable

[Hazzard]

Ive just stated wrecking a 1989 GSXR250 but im not sure if i want to part with the wheels or keep them for myself!

[r1johnkt]

Hi thanks for your reply. What sort of money would you be after? Can I give you a call? Thanks John

[hmurphy]

Personally I think this a pretty good profile and not based on any fact I feel the 3.50 would be too wide.


Isn't 3.50 the correct size for the slick to be properly spread? So you can use the entire width of the slick. That's what I was told and it would be an advantage to have a larger contact patch right? Correct me if I am wrong!

[Buckets4Me]

Personally I think this a pretty good profile and not based on any fact I feel the 3.50 would be too wide.


correct 3.5 inch is the right size
but 3 will do in a pinch :yes:
the old rs's where 3 and the new ones are 3.5

[hmurphy]

Oh yep cool. The slick I have on the rear of mine looks properly spread and handles fine.

[Pumba]

I have always worked off the attached table. Manly because I have never found any other evidence that relates tyre profile to rim size.

Bugger posted the table before heres the link (http://www.kiwibiker.co.nz/forums/attachment.php?attachmentid=125309&d=1238875277)

[hmurphy]

I have always worked off the attached table. Manly because I have never found any other evidence that relates tyre profile to rim size.

Bugger posted the table before heres the link (http://www.kiwibiker.co.nz/forums/attachment.php?attachmentid=125309&d=1238875277)

Are you able to get to the edges of your rear slick with the rim you are running? What size slick do you have on the back? When I had my 2.75 rear wheel (stock FXR rear rim) with the slick (115), there was no way in hell I was getting close to the edges of the tyres going around corners! Unless I was to lowside. But with the slick properly spread on the 3.50 rim, I can hit the edges of the tyre now.

[Sketchy_Racer]

The 115 width 125GP slicks are suited to the 3.5" rim. There is no problem running them on the 3" rim, other than possibly losing a bit of ultimate grip on the side wall. I don't think you would notice the difference in buckets.

[Pumba]

Are you able to get to the edges of your rear slick with the rim you are running? What size slick do you have on the back?

115, and yes using it right to the edge


When I had my 2.75 rear wheel (stock FXR rear rim)

Ur umm :confused: think you might mean 2.15

[hmurphy]

Ur umm :confused: think you might mean 2.15

Yup! You are right. 1.75 is the front and 2.15 for the rear. Oh cool so 3.00 is big enough to spread the slick, that's cool! Matt should be happy with his 2.75 he is chucking on the rear of his bike then.

[r1johnkt]

Thanks for all the info. I have been offered a set of ZZR wheels $150 for front and $125 for rear plus $160 for discs. Does this seem reasonable? do I need the discs? Thanks John

[UNSTABLE]

Sounds like a fair deal to me, and yes you will definitely need the discs.

[hmurphy]

Thanks for all the info. I have been offered a set of ZZR wheels $150 for front and $125 for rear plus $160 for discs. Does this seem reasonable? do I need the discs? Thanks John

As long as the rear comes with a sprocket carrier and sprocket. The discs are reasonably priced but I reckon the rims are getting up there in price unless they are coming with tyres that still have life in them. I paid $35 for my front wheel and $35 for my rear wheel (ZZR250 rims). They came with buggered tyres, no sprocket carrier and no discs. Was still an AMAZING deal. I paid $100 for front disc and $50 for rear disc. I machined the FXR150 sprocket carrier to fit into the ZZR 250 rear wheel.

So unless the wheels are coming with decent rubber and the sprocket carrier and excellent bearings, from observing the market for a while on wheels you might be paying just a tad too much. In saying that, finding the right wheels in the first place can be a pain in the ass! And also the rear disc that you will need is a tri mount (3 mounting points for the ZZR250 rim) and I have found that only (or mostly only) Kawasaki do that and only on 2 or 3 of their models overall. I had to buy a ZXR250 rear wheel off trademe for $50 just to use the rear disc off it. And that rear wheel came with sprocket and sprocket carrier. The wheel was 18" so it will be going back up on trademe when I get round to it.

Also, I have had a rather interesting experience with 2nd hand discs. The rear disc won't matter as much because you won't use it much while racing (not with great force if you do use it anyway) but you need to make sure the front disc is straight. No bends or warps!! Don't buy the front disc unless you are certain it is %100 not going to pulse under braking. Quite a lot of Kawasaki models share the same/similar front disc so you can be a little bit more picky, however $100 for a front disc is a good price. Good luck!

[r1johnkt]

Cheers. Ex info! John

[quallman1234]

I machined the FXR150 sprocket carrier to fit into the ZZR 250 rear wheel.


Make a freaken cap!

[Yow Ling]

Thanks for all the info. I have been offered a set of ZZR wheels $150 for front and $125 for rear plus $160 for discs. Does this seem reasonable? do I need the discs? Thanks John

SO that $190 for the rear plus dicking around . If you are interested I have a RG200 rear wheel, takes FXR sprocket carrier and disk . I think its 2.75" fits a 115 slick nicley can run right to the edge of the tyre no problems. RG200 is wider than RG150

[r1johnkt]

Thanks. What sort of money would you be after for the wheel?John

[Buckets4Me]

http://www.trademe.co.nz/Trade-Me-Motors/Motorbikes/Parts-for-sale/Wheels/auction-227356939.htm

[r1johnkt]

Thanks Buckets4me. Bought it. cheers mate.

[r1johnkt]

Thanks for the kind offer but I have bought a FZR mag with all the hardware. Cheers John

[Buddha#81]

make sure you do a post on the fitting for future reference to others that follow!

[Bren_chch]

If you are interested I have a RG200 rear wheel, takes FXR sprocket carrier and disk.

I'll buy that! :)

[r1johnkt]

Hi, Does the back wheel of the FXR fit on the front? To get a wider rim?

[hmurphy]

Hi, Does the back wheel of the FXR fit on the front? To get a wider rim?

My friend was going to do that but he decided it was too much work. The chances are you would have a LOT of work to do on the wheel to fit it properly. Heaps of machining. Remember you have to fit a front disc on it too. The rear disc of the FXR is pretty tiny. You will also most likely have to make another caliper mount too. It would probably be easier to buy a front wheel off trademe that comes with the disc so all you might have to do is make spacers, new caliper mount [probably], and possibly new bearings.

[gav]

Wow, looks like rims got quite expensive, I use to pay no more than $100 a pair + freight. Didnt want any tyres on them, they are usually rooted anyway and just more weight to freight. (And usually had slicks to mount anyway). But would expect to get axles, spacers etc, and sprocket carrier. Discs were a bonus.

[Pumba]

Wow, looks like rims got quite expensive, I use to pay no more than $100 a pair + freight. Didnt want any tyres on them, they are usually rooted anyway and just more weight to freight. (And usually had slicks to mount anyway). Nut would expect to get axles, spacers etc, and sprocket carrier. Discs were a bonus.

I have always been of the same opinion

[r1johnkt]

Well I've started the rear conversion of the FZR250 wheel to the Bike. I'm going to run the FXR axle. Pulled the bearings out to change as the axle of the fxr has a larger diameter, will have to machine up a few spacers. Looks at this stage the same brake disc can be used, same size as the fxr. Don't know about the sprocket yet. Seems as it has to many teeth compared to the FXR one by 11 teeth. I'll keep you posted on progress.

[F5 Dave]

Hardly understood that, but on kart track you will need super low gearing. Big rear & small front. Check what others are running, road will be too high.

[r1johnkt]

Sorry about that but this is all new to me at this stage. I can use all the help I can get! Cheers

[r1johnkt]

Thanks to all who gave me advice over the past week. I have just finished machining and fitting FZR wheels to my fxr. Not to hard really! Just have to fit the slicks and I'm racing next meet. Thanks to all.

[gav]

Don't be shy, giz a look! :yes: