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  #1  
Old 31 Jan 2014
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525 on 520 sprockets?

Hi Guys, I've just had a 525 chain installed on the bike, a few days later I noticed that the sprockets were 520 size ones.
There is, of course, a little bit of side to side movement of the chain on the sprockets as the rollers are a bit wider (same pitch).
I've ridden a few miles and all seems ok,
Does anyone have actual experience of riding long distances with this type of mismatch.
Cheers

PS I apologize for posting twice, previously on the honda bit, realized my question wasn't bike specific
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  #2  
Old 31 Jan 2014
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That is a really good question ... i've never ridden with 520 sprocks on a
525 chain. As you say, pitch is the same ... but if it's a bit wide, could mean extra wear? Dunno really. I defer to someone who's actually done it ... and has the mileage figures to back up any claim.

I can tell you that, in general, a 525 set up will out last a 520 set up (all things being equal) by quite a margin ... 20% to 30% further with the 525 set up.

If you've gone with an X ring DID chain, then you are good for many miles down the road. O ring is OK, but X ring is at least 20% better than O ring.

If me, I'd swap out your 520 sprockets for OEM 525 ones. Maybe save the 520's as spares for on the road? ... or sell them or give them to someone who needs them?

I can get 22K to 25K miles on my 525 VM2 X ring chains with OEM sprockets, and changing out front sprocket every 8K miles. This on a DR650.

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  #3  
Old 31 Jan 2014
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OEM is the 520 setup, I renewed the sprockets (OEM 520), and asked for the best chain they had.... and I got a "gold EK 525"
It took me a couple of days to realize there was a mismatch, as I mentioned it works fine...just want some reassurance from someone who has done this in the past, probably out of necessity as they probably had no choice....and then put on some serious mileage and had no problem...
I'm off to Tierra del Fuego on monday and just thought I might ask around...
Cheers (with a cold one in my right hand..)
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  #4  
Old 31 Jan 2014
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Congrats on hitting the road! I guess it's a bit late for changes now! Go for it and have a great ride!
Where are you starting from?

Which Honda are you riding?
I would carry a couple spare front sprockets. This will help extend your chain life quite a bit ... Change them out about every 8 to 10K miles to get max life from your new EK.

EK chains are quite good and last pretty well. But I think your EK is an O Ring chain, not X Ring. I used a top of the line EK chain on my Triumph Tiger in Europe. I made it about 15,000 miles before I sold the bike and it was still pretty good. But that chain was a big 530. A 520 won't go as far. Thumpers are a bit hard on chains. THUMP THUMP THUMP.

Not sure if you can source quality chains anywhere in S. America. Maybe Colombia? Not sure. It IS getting better ... but something like a DID or even an EK will be very pricey with their 100% (or more) import duty on goods.

With luck your new chain will make it all the way down! Oiled and clean is the trick!

Saludos!
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Old 1 Feb 2014
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Yes it is a "O" ring,
Im leaving Buenos Aires, where I live now, to the mountains, Bariloche area, then turning south to Ushuaia and back via the Atlantic coast.


I use two bikes, a Yami FJR1300, and a NX4 falcon 400 honda, which is the one that I'm using this time as I'd like to wonder around the mountain roads and many are dirt or ripio

You can get most spares in Buenos Aires, prices are dollar based, but imports come in at $8 and tourists can sell their dollars at $12 (that in effect cancels the taxes) and prices , if you shop around are ok.
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  #6  
Old 3 Feb 2014
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Quote:
Originally Posted by mollydog View Post
That is a really good question ... i've never ridden with 520 sprocks on a
525 chain. As you say, pitch is the same ... but if it's a bit wide, could mean extra wear? Dunno really. I defer to someone who's actually done it ... and has the mileage figures to back up any claim.
That would be me.

Similar situation, though not exactly the same. I had 525 sprockets and a disreputable shop installed a 530 chain on them. I guess they didn't have a 525 on hand and wanted to make the sale anyway.

I noticed the chain was kind of noisy, especially when backing the bike up and it was definitely a sloppy side to side fit on the rear sprocket. But I ran it for 15,000 miles and had no trouble.

I actually didn't even know it was the wrong size until I removed it to replace it- those numbers stamped into the links are tiny.

.............shu

(Mollydog, we meet again, I think? )
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  #7  
Old 3 Feb 2014
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My guess is that you will probably just wear out the chain/sprockets a lot quicker as you will have a lot more 'lash' on the gearing.

And it could be more likely to 'Thow' the chain with the extra movement too. I would be sure to keep the chain well adjusted at all times and check it regularly.

Hard to say though. New one on me.
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Last edited by *Touring Ted*; 3 Feb 2014 at 14:27.
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  #8  
Old 3 Feb 2014
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Good question about the chain and it just goes to show that you need to have considerable technical knowledge just to check professional repairs done to your bike. I'm not sure I'd have spotted that - I'd probably assume that the chain was a different brand or a different X, Z or O ring type or something and that accounted for the fit.

My friend Google tells me that the difference is that the rollers on the 525 are 1.5mm wider - 8mm vs 6.5mm (roughly) so there will be a bit more side to side slop, but the pitch is the same so the chain will work. My guess would be that the power of the 400 wouldn't overstress the bigger chain but then again I wouldn't be the one stuck up a mountain when a stone jams in the extra gap and things start snapping or bending.

I think it will be a case of damage limitation though. Like oil some chain is better than no chain but one matched to the sprockets would be best. Can the dealer either downgrade the chain or upgrade the sprockets? If not and time is important then I'd probably live with it but keep a careful eye out for abnormal wear patterns.
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  #9  
Old 5 Feb 2014
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Well im well into my trip (end of first day and my back aches and my but is on fire!)
Honda motor answered my mails and said all is ok there will be a bit more noise but not to worry
Reality is , no noise , chain runs cool which might indicate no stress
Relaxing with a Heineken in the middle of nowhere
Thanks all
C
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  #10  
Old 5 Feb 2014
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Good to hear your chain seems fine. On such a short distance ride you will easily return to B'aires without problems of a worn chain. I'm guessing you will travel maybe 5 or 6000 kms. at most? Keep it oiled and clean using
90 wt. gear oil. (used in car manual transmission and differential gears) Wipe off chain with a rag everyday.

For sore back ... try Yoga stretching (or Gymnastics). Also, you could try rotating the bike handlebar angle forward a bit ... so you are leaning more forward when riding. (may help some???)

For more comfortable seat: find a quality foam sleeping pad for camping, cut a section out and put it on your seat. (bungee cord to hold in place) Now ... stop at a friendly Estancia and see if they have a nice, clean Sheep skin to sell you.
(many do)

The Gaucho Estancia workers use Sheep Skins for a Horse saddle, they call it (IIRC) "Mounton" or something like that.
(I lived and worked on a BIG Estancia near San Martin de Los Andes ... 2 months) The Sheep skin and foam pad should help ... maybe will give you an hour or two more of distance before you MUST get off the bike for a butt rest.

Obviously ... your Falcon is not an FJR1300!

If you keep your Falcon, here is a Photo of what a good Dual Sport seat looks like. I can do 400 mile (700 kms) days, one long day after another.


This is a Corbin seat on my Suzuki DR650. Corbin make seats for many bikes. The workers at Corbin are all Mexican Horse saddle makers living and working in California.
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  #11  
Old 5 Feb 2014
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Im allways stiff for about a week when i start a trip, even in my land rover, im estimating about 11000 km on this trip 3500 each way and 1500 to cross the country then i wander about a bit... I have one of those rubber bubbly seats but i left it behind this time , too much stuff on the bike, actually the falcon seat is good, just need to get in the groove again, last trip miami san francisco and back inoctober nov 2013 took me about 8 days to be fully comfortable
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