sprocket size

Lonewolf · #1 PostAuthor: **Lonewolf** » Sat Jul 21, 2012 3:50 pm

I am changing the rear wheel to a zrx 1100 on my Lawson and would like to know what size of sprocket and offset I will need for gearbox. Was going to run with a 530 chain . Any help from those who have already done this conversion would be most appreciated .
lonewolf

#2 PostAuthor: **Ginger Bear** » Sat Jul 21, 2012 6:18 pm

Just to make it clear for me, before I give you any duff advise..... Is it a 17" wheel you're fitting?

steve.w · #3 PostAuthor: **steve.w** » Sat Jul 21, 2012 6:28 pm

Ginger Bear wrote:Just to make it clear for me, before I give you any duff advise..... Is it a 17" wheel you're fitting?

zrx has a 17 inch rear :wink:

#4 PostAuthor: **Ginger Bear** » Sat Jul 21, 2012 7:03 pm

Ok, my 1170R has a Uni-Trak motor fitted & runs 17" ZX7R wheels. I originally started with a specially made 19t front sprocket & 40t rear, it was massively overgeared, so I went for an 18t front sprocket (off the shelf from Debben's), better, but still overgeared, okay for leisurely motorway work, but not best for performance. I have now gone up 5 teeth on the rear to 45t, so 18/45 with 530 chain (another new longer one) :roll:

Works really well, revs at around 5000rpm @ 80mph.
I guess the ZRX probably uses the same sprocket carrier as the ZX7R. I had to remove 8mm or so from the mounting face & fit a 5/8" offset front sprocket to make it all line up.
Renthal sprocket code from B&C express is 184U-530-45.

Lonewolf · #5 PostAuthor: **Lonewolf** » Sun Jul 22, 2012 8:05 am

THANKS FOR THAT GINGER BEAR MY LAWSON OLSO RUNS THE 1170 MOTOR AND THIS WILL SAVE ME ALOT OF TIME AND CASH TRYN 2 GET IT RIGHT

sprocket size

sprocket size

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