[91_gsx600F katana]

Phase II would be to make the steel toothed ring in 2 pieces so it can be fitted to the retainer ring without removing the wheel. Sprocket change in 5 minutes if tracking today and touring tmoro.

That's exactly what I was going to say! Sounds too good to be true!

I like that Jim is making these finally. However it's not a new concept, there's been a company out there that's had this out for a while now. That company shall remain nameless but uses the same aluminum inside and steel outer ring.

It looks cool and u get alittle weight savings over an all steel sprocket but still get the durability of steel.

Jim and junker, my only real question is how will u allow tooth count to be changed when the overall dia of the sprocket gets larger/smaller as tooth count changes. That would mean the aluminum middle would have to be small enough to allow the steel outer ring to shrink and still match up to the mounting points.

Also a good thing would be that purchasing the steel outer ring in different tooth counts should be cheaper than getting a full sized sprocket am I right? Less material should make it cheaper which would be nice as most ppl don't usually pick the correct tooth count from the get go and would like to fine tune it.

[GSXFJim]

...my only real question is how will u allow tooth count to be changed when the overall dia of the sprocket gets larger/smaller as tooth count changes. That would mean the aluminum middle would have to be small enough to allow the steel outer ring to shrink and still match up to the mounting points.

The answer is simple, the diameter of the mounting bolt pattern between the center and the ring are constant, as well as the method of the 2 interlocking. It does not change as the tooth count increases or decreases. The initial design was based on a 45t, common to the Katana so the design can actually drop to around 40t before the size of the center becomes an issue.

Edit....
Notice the the outer 'ring' of the objects in the image?.. this represents the bottom of the 'valley' between the teeth, this is called the Caliper Diameter, the part that locks the aluminum center and the ring doesn't change as stated above.. I figured this would be a good place for a visual... just the Caliper Diameter changes for representation purposes of course as the tooth count increases.

[91_gsx600F katana]

The answer is simple, the diameter of the mounting bolt pattern between the center and the ring are constant, as well as the method of the 2 interlocking. It does not change as the tooth count increases or decreases. The initial design was based on a 45t, common to the Katana so the design can actually drop to around 40t before the size of the center becomes an issue.

Edit....
Notice the the outer 'ring' of the objects in the image?.. this represents the bottom of the 'valley' between the teeth, this is called the Caliper Diameter, the part that locks the aluminum center and the ring doesn't change as stated above.. I figured this would be a good place for a visual... just the Caliper Diameter changes for representation purposes of course as the tooth count increases.

thats what I meant. I just wanted to make sure that you gave yourself enough room to allot a large distance of tooth configurations so the DIA of the outer toothed area didnt become an issue. Nice work. Would love to hear what the cost of these things would be and for replacement outer rings!

[GSXFJim]

Trust me I thought of that way before i started designing it.. it's not the only similar design i have... i've been an engineer so long that its done in my head before i even touch the mouse half the time... i'm one of those, wake up in the middle if the night and sketch an idea and go back to sleep kinda guys...

[GSXFJim]

Done.. http://

[92xjunker]

Wrong sprocket , although it does show the 530 conversion to 520. Here is mine.

[91_gsx600F katana]

looks sweet! how much they cost! I think I would want a 43 tooth or something!

[GSXFJim]

Wrong sprocket , although it does show the 530 conversion to 520. Here is mine.

I didnt say yours was done... LOL

[GSXFJim]

Now its done...LOL Loc-tite added and torqued.

[92xjunker]

I didnt say yours was done... LOL

I saw what was missing, mine is better... where,s the wire?

[GSXFJim]

..where,s the wire?

I couldn't find the hardware i wanted.. I did find aluminum HW that was drilled and non stainless that was drilled.. also the length of the threads seemed to be an issue. So the i ended up with the button head.. i did find something close, but the supplier was in Australia, the shipping was more then the hardware..

[92xjunker]

I couldn't find the hardware i wanted.. I did find aluminum HW that was drilled and non stainless that was drilled.. also the length of the threads seemed to be an issue. So the i ended up with the button head.. i did find something close, but the supplier was in Australia, the shipping was more then the hardware..

I'm good with it, as is.