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Tony B · June 9th, 2011, 02:27 PM

So, taking a look at the sprockets on my rat, and finding that I'm glad I did, the PO hadn't bolted two of the nuts up, they were close to the end of the studs and could have caught on something

The PO had put a new 'O' ring chain and sprocket set on, all looks good quality, but the sprockets were 13/39.
I did some maths, and just by dividing the bigger by the smaller I came up with this :

14 / 45 = 3.2
14 / 43 = 3.07
15 / 45 = 3
13 / 39 = 3
15 / 43 = 2.86

June 9th, 2011, 02:27 PM	#46
Tony B ninjette.org member Name: Tony Location: Surrey UK Join Date: Aug 2010 Motorcycle(s): GPX250 + many others! Posts: 184	So, taking a look at the sprockets on my rat, and finding that I'm glad I did, the PO hadn't bolted two of the nuts up, they were close to the end of the studs and could have caught on something The PO had put a new 'O' ring chain and sprocket set on, all looks good quality, but the sprockets were 13/39. I did some maths, and just by dividing the bigger by the smaller I came up with this : 14 / 45 = 3.2 14 / 43 = 3.07 15 / 45 = 3 13 / 39 = 3 15 / 43 = 2.86