makenzie71 Posted June 27, 2022 Share Posted June 27, 2022 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. Link to comment Share on other sites More sharing options...
Member Contributer bmart Posted June 27, 2022 Member Contributer Share Posted June 27, 2022 Aluminum? Buy at least two with that weight and torque... Steel for me. Link to comment Share on other sites More sharing options...
makenzie71 Posted June 28, 2022 Author Share Posted June 28, 2022 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. Link to comment Share on other sites More sharing options...
Member Contributer JZH Posted June 28, 2022 Member Contributer Share Posted June 28, 2022 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! 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! 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 Link to comment Share on other sites More sharing options...
Member Contributer Captain 80s Posted June 28, 2022 Member Contributer Share Posted June 28, 2022 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?" Link to comment Share on other sites More sharing options...
makenzie71 Posted June 29, 2022 Author Share Posted June 29, 2022 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! 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! 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. Link to comment Share on other sites More sharing options...
makenzie71 Posted June 29, 2022 Author Share Posted June 29, 2022 JTR1346 is a 43t 525 sprocket that fits the RC36/46 750/800. Link to comment Share on other sites More sharing options...
Member Contributer JZH Posted July 1, 2022 Member Contributer Share Posted July 1, 2022 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 Link to comment Share on other sites More sharing options...
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