[lizrdbrth]

Anyone know of a good source for large sprockets?



I want to build 55/70 Gizmow dual sprocket setup for mine, and having a tough time finding anything above 55T.

 

[rm_hm]

PBI has a 61t for $60.40



What we could use is a sub transmission like a trail 90.



I would run a mondo tire and sprocket but it's a 80 mile ride 45-60mph to good trails from me.



I would take my truck but there are lots of tweakers in the area. I would be worrying if my truck was okay the whole day

 

[lizrdbrth]

What we could use is a sub transmission like a trail 90.

Working on that. Could be awhile.





Meantime I'll have to carry some chain. I called TBI's tech folks. Good service, but they don't normally offer anything over 61T.



Sposeta call me back tomorrow and tell me whether or not they can do a 70.



We've done 500 mile slab trips on my Bighorn2 with a 55t. Figure on a 10+ mpg hit and a bit of extra time getting up to speed here and there, but nothing objectionable about it other than that.



Thanks for the tip on the sprocket. I may yet need another source if anyone knows of one.

 

[turborob]

Sprocket specialist does up to 70 teeth sprockets.



Have a look here:



http://www.sprocketspecialists.com/ProductSearch2.aspx

 

[Sly Fox]

Try http://www.renthal.com/

They machine sprockets to order (at least the UK distributor does)