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525 rear sprockets?


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Okay so I'm running an RC31 arm with an RC36 carrier/spindle assembly all on a VT750.  The VT750 seems to only have 525 availability up front and the VFR only seems to have 530 availability in the back...has anyone managed to find a steel 525 that'll fit the rear?

Alternatively, do any of you cleverer fellows know of, by chance, a 535/17 that'll fit a '06 Shadow 750 Spirit? 😄

 

Sprocket specialists is the backup...they can make me an aluminum sprocket to my specs but I'd prefer to find commonly available parts if at all possible versus custom made.

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Aluminum? Buy at least two with that weight and torque... Steel for me. 

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My preference is steel...but the bike weighs less and has considerably less power than the VFR, I highly doubt aluminum will really be a problem, I just don't like the idea of having to have one custom made.

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You can buy steel (even stainless steel) sprocket blanks, with just a hole in the centre.  Then have them machined to fit.  Had to do that with my RC30 swing arm on an RC36.  Not very cheap, but effective!

 

1975525355_2016-05-1222_08_33x.thumb.jpg.135373f9a9b587cf02ba0b479d223082.jpg

 

I bought one and sent it to someone here in the UK to be machined and he somehow found a slotted stainless steel sprocket and machined that one instead.  Gave me a discount.  Kept my blank for himself!

 

632725413_2016-11-0910_31_30x.thumb.jpg.7ee6f53f82ce37fd2c5066fefa9492b9.jpg

 

But are you sure there are no 530 front sprockets that fit the VF?  I've swapped several around, just based on the dimensions and JT sprocket diagrams.

 

Honda doesn't seem to use that many different output shaft sizes, but I suppose the 1980s may have been different than the 1990s as far as engine power and 530 sprockets go.

 

Ciao,

 

JZH

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28 minutes ago, JZH said:

But are you sure there are no 530 front sprockets that fit the VF? 

 

Ciao,

 

JZH

 

He typed VT750.  And later typed "'06 Shadow 750 Spirit?"

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4 hours ago, JZH said:

You can buy steel (even stainless steel) sprocket blanks, with just a hole in the centre.  Then have them machined to fit.  Had to do that with my RC30 swing arm on an RC36.  Not very cheap, but effective!

 

1975525355_2016-05-1222_08_33x.thumb.jpg.135373f9a9b587cf02ba0b479d223082.jpg

 

I bought one and sent it to someone here in the UK to be machined and he somehow found a slotted stainless steel sprocket and machined that one instead.  Gave me a discount.  Kept my blank for himself!

 

632725413_2016-11-0910_31_30x.thumb.jpg.7ee6f53f82ce37fd2c5066fefa9492b9.jpg

 

But are you sure there are no 530 front sprockets that fit the VF?  I've swapped several around, just based on the dimensions and JT sprocket diagrams.

 

Honda doesn't seem to use that many different output shaft sizes, but I suppose the 1980s may have been different than the 1990s as far as engine power and 530 sprockets go.

 

Ciao,

 

JZH

 

It's not a VFR up front...it's a VT750.

This is just my curiosity asking, but why would you carve a whole sprocket for the RC30 arm from a blank instead of using a sprocket made for the RC30 arm?  In my case, for example, since no one seems to make a 525 sprocket for the VFR and no one seems to make a 530 sprocket for the VT750, well I'm just going to have a cheap $20 steel VFR sprocket milled down to 525 dimensions.  It's just cutting 1/16" off both faces and only about 3/4" from the circumference.  It'll be 30 minutes of millwork.

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On 6/29/2022 at 3:53 AM, makenzie71 said:

 

It's not a VFR up front...it's a VT750.

This is just my curiosity asking, but why would you carve a whole sprocket for the RC30 arm from a blank instead of using a sprocket made for the RC30 arm?  In my case, for example, since no one seems to make a 525 sprocket for the VFR and no one seems to make a 530 sprocket for the VT750, well I'm just going to have a cheap $20 steel VFR sprocket milled down to 525 dimensions.  It's just cutting 1/16" off both faces and only about 3/4" from the circumference.  It'll be 30 minutes of millwork.

 

Sorry, VT, but it hardly matters--it's a Honda!

 

My case was the opposite of your case: it's a lot easier to make a 530 into 525 than it is to make a 525 into a 530!  I didn't want to use a 525 (or 520) chain on my 837cc VFR, but if it turned out to be too difficult to have a 530 setup, I could have gone with the 525 (or even 520, as the strength of drive chains has improved quite a lot in the last 30 years).  It may even be possible to run a 530 chain on 525 sprockets, but that sounds like a desperation move to me.

 

Ciao,

 

JZH

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