Suzuki wheel rear sprocket

M

merlin

Senior member
Location
gunnislake cornwall
I am getting round to doing the Suzuki wheel conversion on my sprint ,can anyone supply info on sprockets and chain, as in rear sprocket gearing and chain size ,also do I have to machine the sprockets to line up ,
many thanks
dave
 
Dave, use a 530 chain and find a 40T rear sprocket, lots of suppliers for alloy ones around but steel is quite a bit harder to find.
And yes, there is some machining involved. Why not just go to one of the people who's done this a lot, there's several scattered around the world but Keith N. at laverdascozia.com knows what to do and how to do it, has done quite a few successfully, and may even be able to supply you with wheels already done (and a sprocket). There are several options, speedo drive, what brakes will you be using (good idea to upgrade at the same time, in fact you have to change the rear brake completely at the very least), what size axles, even which Suzuki wheels will you be using (750 are different from 1100), maybe even a swing arm upgrade?
Unless you know a good, well-equipped machinist who does the work because he loves it and doesn't have to charge by the hour (or if that's you), it's honestly best just to go to someone who's already worked out the bugs. I spent far too much when I tried to coordinate it myself, and then I had to redo quite a bit because I got it wrong the first time.

Ken
 
thanks ken
I have had the front wheel machined already also the rear sprocket carrier ,I am using 4 pot brembos on the front and the suzuki rear caliper I am also going to use the suzuki 20mm axle .I think it was kiwi laverda who supplied me with the dimensions etc for the wheel machining but I dont seem to be able to find any info for the sprockets .I am fortunate to have 2 friends who can do the machining for me it has cost me ?40 and some work so far .I was going to contact keith as I understand he does a steady bar for the rear brake and the caliper brackets for the brembo,s
dave
 
Dave, OK, sounds like you've already got most of the problems sorted out. Use a 40T sprocket for a GSX-R1100, as I mentioned quite a few alloy ones available, steel ones a bit harder to find. Alloy is fine for a weekend rider, use steel only for a commuter or long distance tourer. I think you may even be able to get a genuine Suzuki 40T optional one in steel. Worst case is just go to a chain supplier and buy a blank 530 platewheel with 40T, have a machine shop bore the holes.
Now that the sprocket carrier is narrower, you will also need to run the threads for the sprocket bolts further down the bolts and cut the bolts shorter. Uses an odd M8 (I'm pretty sure) fine thread, but not difficult to find a die or to set them up on a lathe. Shorten them a bit but don't cut them to final length until you're positive everything lines up, you may need more metal off the carrier or maybe a spacer.
Do check that your sprockets actually are lined up. Some genuine Suzuki (?) ones are slightly dished. Mine were several mm out when everything was bolted together, one of the things I had to redo.
You may also be able to find a heat treated hollow chrome-moly axle the right length if you take your Laverda one to a bike breaker (do you have any in Cornwall?) and ask them for a 20mm one the same length. If you do, please post what axle you used on this forum. They can't be cut down like solid ones can, and it would be nice to be able to shop for one without having to go to a wrecker, my nearest ones are all over an hour away.

Ken
 
Sprockets for the GSXR range usually only go down to 42T, never seen a OE sprocket in 40T.  All are dished, but they are fitted in different directions according to application.  I make my own rear sprockets from alloy blanks.  Standard Suzuki sprocket bolts have M10x1.25 thread, which I chuck into the bin, as they are not aesthetically very pleasing.

As I have never seen a broken 17mm Laverda rear axle, I simply don't bother with a 20mm axle and convert the stock Suzuki wheel to take the stock Laverda axle.  A lot less farting about with various spacers rolling over the floor when trying to fit the wheel...

piet
 
& some new cush-drive rubbers might be a worthy investment?

suzy item # 64651-27A01

<edit>  & suggest ya get more than 1 blank & machine up a few sprockets while ya at it.
Clyde has run a 40T, 41T & 42T.  currently running the 41T, but the others have both had a good workout as well.
 
& Clyde ('78 1200) is running 525 sprockets and chain.
yea, standard is 530 and some blokes go for a 520 to lighten things up a bit, or get a bit more clearance to the rear tyre.
but the 525 looks right to me, & it's good to be different.  8)
ya just need to skim a bit off one face of ya gearbox sprocket.  simple enough.
but it's your call.

Mark

<edit> & i'd ignore Ken's advice.  steel ??  that's so yesterday !!
mcnicol said:
,, Alloy is fine for a weekend rider, use steel only for a commuter or long distance tourer. ,,
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