2007 GasGas to KYB SSS forks

[CanGasser]

Well I'm back to doing this swap, bought a set of 2008 SSS with the YZ triple clamps so I am going to just drop these in. What have everyone that did this find best, Use a YZ wheel and caliper or use the GASGAS one? I have a 2003 YZF parts bike I could use the stuff off or could use the GASGAS with a caliper bracket and different axle if I am correct. My guess would be to use the YZ wheel, I think I read somewhere the GASGAS caliper will bolt up the the YZ bracket.

thanks
Scott

 

[swazi_matt]

i had some new spacer made by twowheels (steve Beane) that enabled me to use the GG wheel, bearings and seals with a yz axle (it sticks out about 15mm on the RHS)

for the brakes you will need an adapter to convert the yz caliper to a 260mm disk (made by braking http://www.motorcycle-superstore.com/20931/i/braking-caliper-bracket-for-260mm-front-rotor)

And lastly i just had a GG top triple clamp machined out to match the yz forks

 

[fullthrottle]

I just used everything from the yz and had a steering stop welded on

 

[Elvis74]

I changed mine now. I went back from the YZ tripple clamp to the original gasgas. I machined the clamping diameters to fit the KYB SSS


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[CanGasser]

Can anyone confirm the head stem bearing sizes so I can get those ordered?

Thanks
Scott

 

[swazi_matt]

All balls has a section on their website that has bearings sizes for conversions

 

[(F5)]

In my thread. . , Erm hijacked thread


http://www.gasgasrider.org/forum/showthread.php?t=17744&highlight=tech&page=4

 

[_Hammy]

Hi Scott, I see you're using SSS's off an 08 YZF which I think have a 32mm fork lug and thus changing the steering geometry (if you're keeping the GG triples).

I'm about to step into this conversion for my 09 ec300 so are interested in anyone's real world feedback on the geometry changes on the older chassis, and whether it is an issue of not

At this stage I'm keen on keeping my triples and boring them out and keeping my front wheel (running tublis)

Sorry for the hijack ;-)



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[CanGasser]

In my thread. . , Erm hijacked thread


http://www.gasgasrider.org/forum/showthread.php?t=17744&highlight=tech&page=4

Hey F5 thanks, so the bearing are just the standard YZ bearings almost like the GASSER was meant to have the SSS forks.

 

[CanGasser]

Hi Scott, I see you're using SSS's off an 08 YZF which I think have a 32mm fork lug and thus changing the steering geometry (if you're keeping the GG triples).

I'm about to step into this conversion for my 09 ec300 so are interested in anyone's real world feedback on the geometry changes on the older chassis, and whether it is an issue of not

At this stage I'm keen on keeping my triples and boring them out and keeping my front wheel (running tublis)

Sorry for the hijack ;-)

No Worries

I was going to use the GASGAS triples and wheel, but the forks came with the Yamaha triples and I just happen to have a YZ front wheel so I am going to go that direction. Seems to be the simplest. Just trying to confirm the caliper and bearings. That bike's getting alot of love I'm rebuilding the engine and installing new forks and installing tublis can't wait to ride her in the spring.

 

[Anders]

I was going to use the GASGAS triples and wheel, but the forks came with the Yamaha triples and I just happen to have a YZ front wheel so I am going to go that direction. Seems to be the simplest. Just trying to confirm the caliper and bearings.

The Gasgas Caliper mounts directly to the Yz caliper bracket. On my 06 200, I did the swap using 08 YZ250F forks and triple clamps. Used the GG wheel and caliper with the YZ axle and home made distances, and made 250mm brake disks for the GG wheels that I have.

 

[(F5)]

Yes Yamaha preplanned this move, however they could have precast some lumps for steering stops. The more YZs canabalised the better new sales. Foil hats everyone: IT'S A CONSPI. . , ,

So much better with SSS. Although for NZ conditions the YZ forks were too stiff and a revavle to KTech club specs did the biz. Just shim changes so was quite cheap.

 

[CanGasser]

Yes Yamaha preplanned this move, however they could have precast some lumps for steering stops. The more YZs canabalised the better new sales. Foil hats everyone: IT'S A CONSPI. . , ,

So much better with SSS. Although for NZ conditions the YZ forks were too stiff and a revavle to KTech club specs did the biz. Just shim changes so was quite cheap.

Yamaha might have the forks but not motor like the Gasser love this motor!

 

[CanGasser]

The Gasgas Caliper mounts directly to the Yz caliper bracket. On my 06 200, I did the swap using 08 YZ250F forks and triple clamps. Used the GG wheel and caliper with the YZ axle and home made distances, and made 250mm brake disks for the GG wheels that I have.

That's excellent, I'm all set then thanks for everyone's help. Should be doing the motor rebuild this weekend and maybe the forks next weekend. Then strap on the studded tires!

 

[(F5)]

Search my head thread if you want the motor even better. Looking forward to the next ride as we are in summer. Sadly some rain forecast for the Sunday.

 

[Zman]

I made the ssswap on my GG 2000 XC327 using the whole front end from a 2008/9 Yamihaha YZ450F. The only things I needed were a steering head bearing and HD furniture foot pads on the frame for stops. The springs were too light for my weight and dampening was too stiff for my riding so I decided to do my homework and learn how to revalve the SSS forks. It only took about 7 tries but I think I finally got it.

http://www.thumpertalk.com/topic/1205224-kyb-sss-compression-dampning-input-needed/

 

[_Hammy]

I made the ssswap on my GG 2000 XC327 using the whole front end from a 2008/9 Yamihaha YZ450F. The only things I needed were a steering head bearing and HD furniture foot pads on the frame for stops. The springs were too light for my weight and dampening was too stiff for my riding so I decided to do my homework and learn how to revalve the SSS forks. It only took about 7 tries but I think I finally got it.



http://www.thumpertalk.com/topic/1205224-kyb-sss-compression-dampning-input-needed/

Hi Zman, how did you fix the stops to the frame? To be honest, the thought of welding stops on is the main thing that's stopping me swapping over to the YZ triples


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[(F5)]

Ahh mate don'tbe ssuch a pussy. Drill a hole, thread a bolt in there and cut a couple of blocks to trial. Then take them to a weldy dude with 20 bones easy as.

If dumb colonials can do it, surely you can. Same breeding stock and all that.

 

[CanGasser]

Now I'm sitting here thinking of spring rates in the KYB SSS forks. For anyone that fitting them to a Gasser what spring did you end up with? I am 235 LBS without gear.

Thanks Scott

 

[(F5)]

Mine were YZ250 and seem OK after revalve. But other bikes may have different rates esp fat 4 strokes.