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Will this work? http://www.bmikarts.com/item/Hub-with-3-18-Bolt-Pattern-400243-or-600253-6500

hey guys, i naively got this sprocket without measuring my hub first, :oops: needless to say my sprocket didn;t fit my hub. so my question is, does anyone know where i can find a live axle hub, 1" bore 1/4" key, that will fit this sprocket? Thanks...

Thank you so much for this. Now let me get this strait 40 does fit the bike sprocket but 41 does not? That's my only question, if I have anymore I will let you know. The only problem is I don't get paid untill October, by the time I get all the parts and get it built it will probably be close to...

Thank you sooo much (once again a marvelous sketch) I can't wait to get started, this is going to be AWESOME!!!:D BTW I am pretty sure that 41 chain fits the bike sprocket, because I have an old bmx bike and I checked it's sprocket it seems to fit.

Yup, it is fine I can do 0-full in about a two hundred feet

Yeah reeeaal funny, Ok, engine is a HondaGx200 6.5hp, max rpm is approx. 3600, terrain will be hard dirt and sometimes grass a few uphills but nothing that steep, and finaly my wheel diameter is 12"

Also I would appreciate a sketch of setup3 if possible, I know what your talking about but those sketches are alot better than I can draw and I like having a picture to work off of. Thanks!!

Right thanks for all this. I was thinking a ratio of 6:1 for 1st gear (that's what I have on my kart now) and maybe a ratio of 4:1 in 2nd. What do you think? What size sprockets will I need to achieve this?

Probably just a 2 speed for know. I have 1 minor problem no way am I going to fit two clutches on my engine shaft. Does that mean I will need 2 jackshafts?

Thank you so much! this is so cool! Only one thing how does the light green sprocket work? Is it a one way? Where do I find a sprocket like this. Thanks again

Could you give me a parts list and where I can get it. I hate to sound like a noob but I have never even heard of some of this stuff. Also could you make a sketch of this on Sketchup I know it prpbably takes a while but I would realy appreciate it. Thanks!

2 questions: 1:Where do I get a one way bearing? 2:How do you get Clutch2 to be driven by the axle, would I need another sprocket? oh yeah if someone could sketch a pic of modelengineer design I would realy appreciate it. I think I know what he means but a pic would help alot.

Ok cool! do you know where to find a clutch like that? Remember that it is for a 40/41 chain.:thumbsup: Yeah I have wanted Google Sketch for a while, but estimated download time is 6 hrs. :mad2: Maybe I will try to do it tonight when it won't tie up the phone. :ninja:

WOW! that's basically what I had in mind it's so cool to see it in 3d like that! I realize know that clutch 1 would have to dissengage for this to work but please let me know your ideas. would switching the clutches work or no? Just brainstorming. Thanks

What I described is just very basic, I realize that I will need a chain tensioner of some sort to keep the chain on Clutch2 but I dont think that will be that hard. please try to get a sketch up, because my computer won't do google sketch.

Alright untill I can get pics I will attempt to explain it.: On the engine shaft there is a normal clutch (clutch1) and a sprocket(sprocket1) . Below the engine there is jackshaft with a high speed clutch(clutch2) and another sprocket(sprocket 2) . There are two chains the first chain runs over...

I have a sketch on Paint but when I try uploading it it says its to big? how do I make it smaller?

Would you still happen to have some/ know where to get one?? Or are they long gone?

The way I designed it ( on paper ) I don't think I will need a two sprocketed main clutch. I didn't know that the "secondary clutch" was different than a normal clutch. What would happen if I used a normal cent clutch? Would one of those fancy racing clutches wouldn't work?

Yeah I think I have one of those somewhere but I couldn't find it, and buying a new one would have been pretty hard because at this time I had absolutely positively no money at all, so even something like that was out of my budget.