630 to 530 conversion

[andychain]

Yet another conversion this week by a Laverda owner and to save me having to tell folks, the sprockets are available from B&C Express for around £53. The part numbers are 1024-19 for front and 1024-40 for the rear. It might be handy for those wanting to replce sprockets as well.

And

[Boba]

My recomendation, do not go from 630 to 530. Go 520.
Boba

[andychain]

520 limits your options as the only company doing light 520 is Regina, I do not rate the Renold.

The iwis 530 non O ring is lighter than just about all Jap 520 so the only weight saving is in the sprockets. For long life bearing area is important. 520 has a bearing area of  0.51  , 530 has 0.67. For normal use 530 wins hands down. Even for race I would put a non O ring 530 from iwis up against any non or O ring product.

As for weight the iwis 530, 10B-1, weighs 0.91kg per mt. I dont have Jap 520 weights but I would bet the iwis is is lighter than the non O ring and far lighter than any 520 O ring.

As a final shot, the front and rear sprockets fit off the shelf for around £53 get a set of 520 sprockets for that.

A nice guy from near to me had an iwis fitted to his Laverda last year, liked it and has just fitted one to his FJ1200. His comments after a quick ride round the block were very favaourable. He just said the whole bike seemed more fluid.

Love you

Andy   

[Robjota]

Yet another conversion this week by a Laverda owner and to save me having to tell folks, the sprockets are available from B&C Express for around £53. The part numbers are 1024-19 for front and 1024-40 for the rear. It might be handy for those wanting to replce sprockets as well.

And

1024 or 1023 Andy ?

Boba, 520 is good for me but it doesn't suit everyone, I can wear out a steel 520 front  in a year and 2 alloy rears in the same time, 530 do not wear like that and a road rider isn't going to see any benefits with 520 over 530.

Rob

[Robjota]

Andy, Talon rear 520 alloy sprockets are around £21 each plus VAT, I paid, trade £5 each for the fronts, so guess they are max double that from M&P, which I admit is cheap.

THe EK 520 chain I run 520MVX is pretty light, and I wish I'd weighed it just for interest....
Features like solid bushings, lightening holes in the sideplates, large-diameter pins, and friction-reducing Quadra-X Rings help ensure high-performance and durability


I admire what you're doing so dont be taking humbrance, I'm merely doing what you ask, challenging you ! (probably in the wrong section though)

Rob

[Grant]

The 520 on mine is from Tsubaki.
Is that made by one of the other manufacturers?

[Boba]

Rob,
I am using a 520 D.I.D racing chain (non o ring) with 38 ergal rear sprocket for my ongoing project.
Little experimenting can not be wrong.
Can always go back to 530.
Boba

[andychain]

Rob sorry 1023-19 is front and 1024-40 is rear.

I never take umbridge

Riders will always use a product they have faith in whether it is leathers, oil or even chain.

I just find the hype concerning 520 goes a little over the top. Yes racers use 520 but then change them very very regularly, like most races. Yes it is lighter comparing like for like Jap non O ring or O ring. I have many friends with modern high powered machines such as Fireblades than go throuhg 520 rapidly indeed many bike manufacturers now go to 525 which again is halfway house between 520 and 530. The same applies to 525 in as much as it seriously limits choice.

On the forum I just give advice what peeps do with it is up to them. I caused a stir when I first muted the idea of the Merc duplex to replace the triplx but now it is widely used and not just on Laverdas.

As for alloy sprockets the same applies.....racers change the gearing more often than I change my boxers and given the lightness plus the lack of miles it is not a bad choice but for road and touring most find the wear too much. We have to go back to basics in as much as 2 sprockets and a chain is a gearbox. For best wear and running all should be changed as a set. You would never replace one intermeshing gear in a normal gearbox.
In reality you will get 2-3 chains to a set of sprockets but each will wear at a faster rate.

I have always put comments on here with a bit of tongue in cheek and dont care if people agree or disagree, I just love not only the forum but also the bikes (Laverdas), the people that I have met and above all greatly admire the knowledge shown. Hopefully soon I will have a Laverda so I will be able to put my money where my mouth is and yes I will run standard iwis non O ring just like my hooligan Bandit 1200.

Lub I aint upset and its the crack that makes it good.

Still love you all

Andy

 

[Robjota]

Rob,
I am using a 520 D.I.D racing chain (non o ring) with 38 ergal rear sprocket for my ongoing project.
Little experimenting can not be wrong.
Can always go back to 530.
Boba

Hi Boba
I admire your work, but I think your bike is more sport orientated so what you want the chain to do is different from some forum members who want to update but might be all up 400-450 kgs with pillion and luggage for touring. Maybe you'd agree, then no point in a 520 , it is just too narrow on the teeth to sustain this kind of punishment for no gain in these cases.

Benefits for 520 are increased tyre clearnace and less unsprung weight, good for you and I  

Good job Andy !

[VanguardontheLav]

I'm the one Andy speaks of this week... (Brilliant service from Andy by the way, as if you didn't know, thanks!)

When we talk of lightness, I thought I'd measure the weight of the chains as I was changing.

630 (more or less sans lubricant!) was 2265g

530 (with LOADS of sticky gunge on and in) was... 2446g

Just realised I didn't weigh the sprockets, but there didn't seem that much difference.

Of course it would have been interesting to see what a properly lubricated 630 would have wieghed - so if anyone has one!

My tuppence worth!

--
Dick

[Robjota]

Hi Dick

Are you saying the 630 was lighter than the 530, that surprises me..

Ive just done some weights, unfortunately I cant weight the 520 I currently have fitted, but I'd like to.
Below is a rear Renthal 530 x 38 alloy   368g
Front 530 x 19 steel                          402g
DID 530 X ring chain                         2137g

[Robjota]

Here's the 520 weights less the chain, which I'll do when I can..  If these posts need moving, please do so Mr Moderator...

Rear 520 x 37t Alloy Talon                 221g
Front modified 530, to 520 19t           311g
Chain estimated 400g lighter than 530 DID in post below...

Cheers Rob

[andychain]

Rob just done the sums and the iwis 530 (M106SL) weighs in at 1.560kg, you must have weighed some other chain. That is for 108 links by the way.

[andychain]

Sorry I meant Dick, the other very good reason to swap is that many wholesalers, mine for one has stopped stocking 630 in both O ring and non O ring form. I would weigh one and post but I cant get the hang of photos. From the catalogue M106SL weighs in at 0.91kg per mt.

Andy

[VanguardontheLav]

I can't check it again (as it's now on the bike) but the chain you sent me Andy was an RK 530 O-Ring with 108 links... I am sure it was 2446g, though I don't have the photo to prove it!

--
Dick