New custom rear sprocket

[pur pony]

Here is my new custom one off rear sprocket.

I have an X1 which i am knee deep in my XB wheel conversion. I had a few options for a rear pulley...

1. Use the XB 65 tooth rear pulley and through my gearing off, and loose a lot of my belt adjustment.

2. Weld in the 5 bolt holes in my factory X1 61 tooth pulley and drill and XB bolt pattern

3. Change my front pulley to i think a sportster 29 tooth and use the XB 65 tooth and have factory X1 gear ratio again.....


OR... go custom.....

I really loved the dark horse custom XB pulley, but the price was $450 and it was still the wrong gearing for my bike and would lead to #1 above....

So, i designed my own pulley in Solidworks and pasted it along to a friend who machined it for me.

here is my cad design- Its a 61 tooth factory X1 ratio with XB bolt pattern and XB 6 spoke wheel design!!!!

here is my plastic prototype off my sla machine for test fitting

and here is the finished part!

he just mailed it out to me today, so i have not seen the finished part in person... but cant wait.
Once i get it, its getting handed off to another friend for hard coating, and then back to me, to powdercoat it to machine my wheels...

 

[Glade21]

[up][up][up] Looks GREAT!

 

[xxspudxx]

That looks amazing. Great work! [up]

 

[reebis]

very nice! what material did you have him machine it out of?

 

[Pockets]

Bad ass lookin piece! How much did the material set you back though? That big of a chunk of AL can't be cheap.

 

[pur pony]

thanks guys-

it is made from either 6061-T6 or 2024-T351 aluminum. I forget at the moment what he was able to get. The 2024 had some better properties then the 6061.

To tell you the truth... materials and machining cost me $0.00 and the design was just my time... so the whole thing cost me $0.00 cant beat that.....[up]

I did get a few price quotes from local shops that quoted me $800 for one.

 

[Pockets]

Holy crap! Score! Can't wait to see it mounted up.

 

[Pistolero EZ]

Hey Pur Pony, is there any chance I could get u to share your design information, I'm trying to help my gear ratio on my 05 xb12, I am a machinist and havep cnc capabilities but no tooth design data or program. I need q 611 tooth pulley also. My e-mail address is [email protected] thanks

 

[wolfo68]

Pistolero, what are you wanting to do with the sprocket? Up down or switching belt drive?

 

[Pistolero EZ]

ideally I want to get a better ratio for top end, id love to go up a bit on the front pulley a tooth or two and go down on the rear pulley a tooth or two. I am running a 195 45 17 yokahama s drive car tire and it is about an inch shorter than the stock 180 55 17 and I want my top end back plus a little if possible. I am hammering the rev limiter in high gear so I think ive got a little room for more gear left. any data on the pulley tooth profile would be a big help.