source for 520 rear Aluminum sprocket . .. . .

archimedes · **Posted:** Fri Oct 12, 2012 6:41 pm

greetings,

into a conversion project here in the lonely
midwest using a Cagiva Alazzurra.
having a problem acquiring a rear sprocket
in aluminum with 520 pitch with proper bolt hole
spacing for the now used Alazzurra rear wheel hub.
tried Sprocket Specialities & that was an almost
disaster (saved by my credit card company).
looking for alternative sources . . . .?
don't racers need to replace those AL sprockets
often . . . . .
thanks
scott

618F1 · **Joined:** Thu Oct 14, 2010 11:23 am **Posts:** 1809

Should be same as F1, Paso, 750 sport, and a few others (even many bevels). Their number is 187Z; just ask for 520 pitch, with the number of teeth you want, plain or anodized. MikeV

pantah_good · **Posted:** Sat Oct 13, 2012 8:19 am

618F1 wrote:

Should be same as F1, Paso, 750 sport, and a few others (even many bevels). Their number is 187Z; just ask for 520 pitch, with the number of teeth you want, plain or anodized. MikeV

Yes, that's all good info, even for the first 851. I've purchased a lot of sprockets from Sprocket Specialists and have always been very happy with their service.
Bill

loudbike · **Posted:** Sat Oct 13, 2012 9:52 am

I use AFAM sprockets and like 'em a lot. In North America, you can get them from Drive Systems USA http://www.drivesystemsusa.com/

pantah_good · **Posted:** Sat Oct 13, 2012 11:21 am

Hi Steve,
The AFAM number for us would be 51601, correct?
Bill

loudbike · **Posted:** Sat Oct 13, 2012 12:05 pm

That's right, Bill. I just bought a 37 for the TT and I think they have a decent selection of sizes.. The one on my 853 F1 lasted forever.

pantah_good · **Posted:** Sat Oct 13, 2012 4:20 pm

One more question Steve, the web site is a little sketchy on info. Do they still come with the laid down "figure 8" style lighting holes?
Bill

loudbike · **Posted:** Sun Oct 14, 2012 5:22 pm

Not mine - it looks like this:

Dick le Dog · **Posted:** Mon Oct 15, 2012 4:43 am

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Hello Steve,
This image prompts me to ask what, if any, shock absorbtion do you have on the sprocket mounting ?

I ask because I have just received my Marvics from Steve Turner (TPCS) in England after crack-testing , treatment and powder coating . It's the first time that I've seen them because I bought them from an e-bay ad.
Pretty pleased as the front weighs less than my Dymag , and the rear came with a nice little iron 210mm disc. They are for my F1 proto.
salut,
Dick

loudbike · **Posted:** Mon Oct 15, 2012 3:54 pm

Pretty Marvics, Dick..

My wheel has a standard Ducati "bucket cush" made by FPS; as used on the Pantah, Ally, F1, Sport, 851, Paso and bevels. They vary in hole size and bolt circle - depending on the wheel they were used with..

Regards,

source for 520 rear Aluminum sprocket . .. . .

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