Planning a NewGen swingarm conversion

[lolibater]

What all do I need? I did a bit of searching, but the info was kind of scattered about.

So far I figured I'd need:
Swingarm
Caliper Bracket

andddddddd that's about all I've gathered. Do I need a new master cylinder for the rear? Do I need new bolts for the sprocket? New sprocket? Bolts that mount the wheel to the swing arm? Brake rotor?

Does the pregen exhaust mount up correctly? Idk if passenger footpegs are affected?

Steer me in the right direction here, and you'll see a really awesome bike come out of it.

[lolibater]

I'm assuming all of these?

[csmith12]

Your intent is go put a newgen wheel on?

[lolibater]

Which of those parts can I use from my pre-gen parts is what I guess I should ask at this point.

New gen wheel + aesthetics

[csmith12]

http://www.ninjette.org/forums/showthread.php?t=89172

[choneofakind]

If it's for aesthetics, it might look a little silly to do the back end but not the front end. The front could use some work anyways.

Plus, if you have matching 17" rims, you can use uber sticky awesome tires

[csmith12]

More specific

http://www.ninjette.org/forums/showthread.php?p=569243

[lolibater]

Yes, I know I can grind my current one; I don't want to go that route.

I will eventually do the front as well, the back is just being planned first.

The parts that I'm wondering if I can swap are all the really tiny parts, which those threads don't discuss.

[choneofakind]

look down to post 19 in that thread. There's no grinding required. Just transplant the entire front end and the entire back end off of a newgen and it bolts right up to the pregen.

[lolibater]

I'm wondering pretty much from the chain adjuster back, referencing that hardware, if it will swap over from the pre gen, or if I will need to get newgen parts for that.

33032 is swappable, which makes me thinking that maybe 42036 is as well?

[lolibater]

Originally Posted by choneofakind

look down to post 19 in that thread. There's no grinding required. Just transplant the entire front end and the entire back end off of a newgen and it bolts right up to the pregen.

Yes I know, that's not what I meant. Sorry, I've been staring at schematics and product numbers for far too long today.

Based on the diagram I posted, which of those parts can I use from my current pregen, and which parts will I need to source from a newgen? That is literally all I need to know.

I have found all the parts on Ebay and ron ayers, in the cheapest combination possible, but want to know if I can save any money by reusing some pregen hardware.

Also, can I use the pregen wheel on the newgen swingarm while I'm waiting for my newgen wheel? I have an EX500 shock on right now, so hopefully that would bolt right up to the newgen arm?

[lolibater]

Ok, after a little more research, everything will swap over except the following parts:

33040 Outer Chain Adjuster (2)
330040A Inner Chain Adjuster (2)
11012 Chain Adjuster Cap (2)
92171A Brake Hose Clamp

Washers:
92022 x2
92015A x2
92015 x2

Extra screw needed for the Brake Hose Clamp: 92151A
Extra nut needed for the BHC: 92210

Should probably replace the oil seals: 92049 x2

Obviously will need 33001; the swingarm.

Comes out to about $175 - $200, without the back wheel or tire.

[rabies]

here is what you need. i jus went through this. trying to use every -07 part i could use.
http://www.ninjette.org/forums/showthread.php?t=114229

you have to HAVE to have the 08 swingarm..duh
08 caliper bracket. calipers are the same as it seems.
08 tensioners and wheel spacers.
08 axle bolt. the pregen is short by 3"
and the 2 bolts that bolt the dogbones to the swingarm are now jus 1 long bolt. go to the hardware store and buy a bolt or buy online used or whatever. i went tot he hardware store $2

use teh same caliper, brake line. master cylnder etc.
same hub and chain and sprockets. my wheel came with the rotor so idk about that if its the same fit but its desinged with fancy petals.

[lolibater]

Thanks man! Do you know the part numbers for the axle bolt, dogbone bolt, and the wheels spacers?

I got the swingarm, tensioners, and caliper bracket.

[rabies]

i dont have part #s. and i looked on kawasaki website for parts and they say some parts have same part # but they are obviouly way diff in size,shape, diameter on things.

i bought stuff on ebay. type in "08 ninja 250 axle bolt, and spring bolt"
i ended up getting an axle bolt with tensioners/spacers and those black outer thigns.
i do have extra tensoiners for an 08 swingarm if interested. pm me if you need them

[70's kid]

Hi all. Does anyone on here know if a newgen ninja250 swingarm will fit a pregen?. Got a rear wheel from a ex500 cheap(Came with like new tyre) but if wont fit in my pregen swingarm. Got front wheel from zzr 250 with new am26 roadrider that was cheep as well. Hope u can answer my question as I would love to get the old girl back on the road. 70's kid (Paul)

[Alex]

/merged with similar thread

[lolibater]

Oh man here we go again lol.

Yes the newgen swingarm should fit the pregen with no modification. You need to get a few things extra like the brake caliper bracket and some other things I can't remember.

These are the threads you should read for more info:

http://www.ninjette.org/forums/showthread.php?t=114229

and

http://www.ninjette.org/forums/showthread.php?t=91825

let me know if you have any questions after that.

[70's kid]

Thanks guys, Will be defo doing this conversion. Think it's going to look well mean with the new parts added, Not only that it means I can now fit my skidmarks newgen hugger. 70's kid (paul)

[lolibater]

Do you need a swing arm?

[CZroe]

Originally Posted by rabies

...you have to HAVE to have the 08 swingarm..duh
08 caliper bracket. calipers are the same as it seems.
08 tensioners and wheel spacers.
08 axle bolt. the pregen is short by 3"
and the 2 bolts that bolt the dogbones to the swingarm are now jus 1 long bolt. go to the hardware store and buy a bolt or buy online used or whatever. i went tot he hardware store $2...

I don't know if they are incompatible, but the calipers are VERY different.

[Yamastorm]

Hi, does anybody know if I can use pregen rear wheel on newgen swingarm?

[DannoXYZ]

Yes and no. Wheel can fit with custom spacers.

But have to use new-gen brake with new-gen swingarm. Pre-gen wheel & rotor won't fit new-gen rear brake.

[Yamastorm]

I read if I use 08 caliper bracket then my 07 caliper fit?! Also what kind of custom spacer are we talking about?

[DannoXYZ]

Be careful of what you read out there because a lot of people just regurgitate incorrect or outright wrong info from others' posts who haven't actually done the work or even touched actual parts in question with their own hands.

Pre-gen wheel goes into swingarm that is 13mm narrower. To fit pre-gen wheel into wider new-gen swingarm, you have to make axle-spacers that's 6.5mm wider than before. Left-side spacer's easy to make.



Problem is adding 6.5mm to outside of caliper-bracket on right side.



It will no longer engage with tab on swingarm. Caliper will just swing around and around when you try to use rear brake. You can cut off tab on swingarm and weld on wider one to engage new position of caliper mount. Easier to just weld on bracket for front of torque-arm and use entire brake-assembly from pre-gen on new-gen swingarm. Will also match 10mm larger rotor on pre-gen wheel.

[Yamastorm]

Thx Danno for your input.
One more question.
I know you did the conversion so you did rear only or front too?
Can I just convert the rear to 17 and leave the front 16?
Would that be stupid?

[DannoXYZ]

First, I had done complete rear-end conversion bought from fellow racer using:

- new-gen swingarm
- new-gen brake caliper+hose+pedal (all still connected)
- new-gen brake bracket
- new-gen shock & linkage
- new-gen 17" wheel + axle + spacers
- Ninja 300 rear-sets

Everything bolted together perfectly with no need to cut or weld anything. Rode it this way for over a year while I mulled over what to do on front-end. Also wanted to wear out front-tyre.

Decided I didn't want to swap fork+wheel from new-gen. That's because new-gen fork-clamps have 5mm less offset to yield same trail with steeper 26-degree rake. Transplanting new-gen front-end on slacker pre-gen 27-degree rake would end up with more trail than either stock bike and result in lazier steering-response.

So in end, I used only 17" new-gen wheel and kept all original parts from pre-gen. Just needed to weld on tiny extension to reposition front brake to work with new-gen's larger brake rotor. Used this guide: https://www.ninjette.org/forums/showthread.php?t=266182

When I have some time, I'll make new pre-gen caliper mount like this one that's no longer available. It repositions pre-gen front brake to work on new-gen's larger brake rotor.

[Yamastorm]

Hi, thx again.
First of all, if you make the front brake bracket I will buy it from you.
Question for you. How were the riding experience on 17 back and 16 front?
I'm asking because I don't mind changing back to 17 But I have a brand new front fork made to custom to my weight. (AND FEELS GREAT) Pretty much like your situation. So if you have one extra front bracket that would work for me. Almost forget the Ninja 300 rear-sets is a direct fit?
Can wait to hear from you and thank you again!