"It measures as 1.25 narrower and on a 160 that can make the difference between touching and not touching the tyre"
If you want to throw your toys out of the pram that's up to you, but the above quote is yours - all I am saying to the people who have asked is that you don't save lots of room with a 530 as there is very little difference in the chain width and if they do go that way for that reason alone they would probably be disappointed.
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Z1000 help needed!
Moderators: KeithZ1R, chrisu, paul doran, Taffus
I thought I would add my own experiences with wider wheels as I originally fitted a 3.5 inch rim with 130/18 tyre and ran the stock 630 set up with no modifications to the chain line, this looked much wider than the stock rim with 130/18 tyre and greatly improved handling, I was able wear the tyre to the edge which meant better stability and tyre wear (if the tyre is oversize the side of the tyre is pulled in and only the center section of the tread makes contact even when the bike is leant right over, this gives less contact area and greater wear in the middle as well as vague handling ).I recently converted my own bike to 530 set up and a 180/17 tyre on a 5.5 inch wide rim. I fitted the 5/8 offset front sprocket (15mm) and then rebuilt the rear wheel rim 15mm offset towards the disc side and then moved the hub 15mm to the chain side to re-align the wheels, the chain line has then effectively been moved over 15mm, needed a wider swing arm and to change the rear brake set up as the disc is further inboard. I also had to move the rear shocks 10mm out top and bottom, the outer cover needed some modification and I had to remove the lower footrest stud lock nut, but wheels and chain alignment are correct and no tyre cutting required. The 530 chain exceeds the required demands and is less expensive than the 630 which helps towards the cost of the billet offset sprocket.
picture of the back end of my bike with the 5.5 inch rim and 5/8 " offset chain line
http://www.debben.co.uk/z1b900.jpg
offet sprockets available from
http://www.debben.co.uk/acatalog/z1000.html
Regards, Steve
http://www.debben.co.uk/z1b900.jpg
offet sprockets available from
http://www.debben.co.uk/acatalog/z1000.html
Regards, Steve
-
iancr900
Ian - yes most of it does count to unsprung weight.
Gyroscopic effect not so much, as it is a precession of mass x radius squared, which is why scooters are so quick to steer the gyroscopic effect is smaller due to the little radius of the wheel.
It also affects chain tension with the increased centrifugal force throwing the chain further out on the sprocket as you go faster putting more tension on the chain.
If you want the specs for DID chains go here
http://www.didchain.com/specs.htm
please remember it takes 120 links of a 530 for the same length as 100 of a 630.
Gyroscopic effect not so much, as it is a precession of mass x radius squared, which is why scooters are so quick to steer the gyroscopic effect is smaller due to the little radius of the wheel.
It also affects chain tension with the increased centrifugal force throwing the chain further out on the sprocket as you go faster putting more tension on the chain.
If you want the specs for DID chains go here
http://www.didchain.com/specs.htm
please remember it takes 120 links of a 530 for the same length as 100 of a 630.
Rich, thats a very impressive technical reply..... and the DID chain 'link' (JOKE..tee hee) is interesting....!? To be honest tho' all this discussion/bull about chain sizes effecting performance of a Zed is irrelavent, if it was on a racing 50cc bike, maybe, but propotionally, a kg here or there won't make much difference on a big old Zed!!! Try belt drive, much more sense!
Pigford - I looked them up when I was thinking about going to 530, RK / Tusbaki? also have specs pages although their according to their specs they aren't as strong (tensile)as DID.
I know what you mean by irrelevant, under 100 bhp (apart from Steves' plus a few others) isn't going to F*** a modern 530 but if you want a sprocket with a slight offset you have to buy a billet one if running 530. My 630 on the harris (chain tension runs from oh my god it's going to fall off to correct!)has only been adjusted once. (admittedly I don't do more than 4k miles a year and it also has a scotoiler) but it's five now!
The best performance mod I could make is to go on a diet, I would loose stones of sprung weight and also be able to get into my leather jeans again!!!
I know what you mean by irrelevant, under 100 bhp (apart from Steves' plus a few others) isn't going to F*** a modern 530 but if you want a sprocket with a slight offset you have to buy a billet one if running 530. My 630 on the harris (chain tension runs from oh my god it's going to fall off to correct!)has only been adjusted once. (admittedly I don't do more than 4k miles a year and it also has a scotoiler) but it's five now!
The best performance mod I could make is to go on a diet, I would loose stones of sprung weight and also be able to get into my leather jeans again!!!
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