racepres Posted May 18 Report Share Posted May 18 As Hinted... I need to know the diameter of the Mounting "balls" on the Dnepr...Don't wish to disassemble mine just now... Looking to put a Dnepr Car on a Harley...Just for Kicks... Thanks for the help... Now back to simply putting miles on.... Quote Link to comment Share on other sites More sharing options...
racepres Posted June 5 Author Report Share Posted June 5 Nobody has a Car off??? Approximate diameter is OK!!! Quote Link to comment Share on other sites More sharing options...
luca.stere Posted June 8 Report Share Posted June 8 If I will not forget I will measure on my frame tomorow. Quote Link to comment Share on other sites More sharing options...
racepres Posted June 14 Author Report Share Posted June 14 On 6/8/2022 at 4:00 PM, luca.stere said: If I will not forget I will measure on my frame tomorow. You are like me.. Memory is the ....2nd thing to go!!!! Quote Link to comment Share on other sites More sharing options...
luca.stere Posted June 22 Report Share Posted June 22 On 6/14/2022 at 11:32 PM, racepres said: You are like me.. Memory is the ....2nd thing to go!!!! I was in my garage at least ten times in the last week but I always forget to measure the balls and I have four sidecar frames in garage. Quote Link to comment Share on other sites More sharing options...
racepres Posted June 23 Author Report Share Posted June 23 18 hours ago, luca.stere said: I was in my garage at least ten times in the last week but I always forget to measure the balls and I have four sidecar frames in garage. Not Funny... Now LMK... Or not....I may just take Mine apart to see... tho Not what I wanted to do.. LOL Tho for the Price of Just the Hack, I can probably just Park the Dnepr, and Use that Hack... Money Ahead!! Quote Link to comment Share on other sites More sharing options...
luca.stere Posted June 23 Report Share Posted June 23 I have measured the balls, Ural M72 has 27mm, Ural M63 has 28mm and Dnepr has almost 30mm. Quote Link to comment Share on other sites More sharing options...
racepres Posted June 23 Author Report Share Posted June 23 3 hours ago, luca.stere said: I have measured the balls, Ural M72 has 27mm, Ural M63 has 28mm and Dnepr has almost 30mm. Excellent... Exactly what I needed..I owe ya One...Thanks Quote Link to comment Share on other sites More sharing options...
luca.stere Posted June 24 Report Share Posted June 24 I think all balls has to be almost 30mm in diameter but in time maybe the balls has worn out, as you can see the M72 balls are smaller but also the oldest and the Dnepr balls are from 1991. Quote Link to comment Share on other sites More sharing options...
racepres Posted June 24 Author Report Share Posted June 24 10 hours ago, luca.stere said: I think all balls has to be almost 30mm in diameter but in time maybe the balls has worn out, as you can see the M72 balls are smaller but also the oldest and the Dnepr balls are from 1991. I figured that... plan on trying to source 30mm balls... wondering if 1" will suffice?? Thanks again... Quote Link to comment Share on other sites More sharing options...
Wooden Nickel Posted June 25 Report Share Posted June 25 I was just goofing off on ebay and found drilled stainless 30mm steel balls for about $13.50/2 and $4.50 shipping. https://www.ebay.com/itm/154744459253?hash=item24077d0ff5:g:ExUAAOSwqNdhtFdf Quote Link to comment Share on other sites More sharing options...
racepres Posted June 25 Author Report Share Posted June 25 Thanks for that.... I ain't too good with the Metric size stuff... but Assume, that bigger attachment bolt size is Better... Those might be exactly what I need... will try to do some Engineering with that... If all goes well, I plan on a Dnepr Car, hooked to a "spare" Harley layin around here... Just a bit more Speed!!!! Darn it... Out of China!!!! will Look diligently for a US supplier... but.... If I can't find one... Quote Link to comment Share on other sites More sharing options...
Wooden Nickel Posted June 25 Report Share Posted June 25 Well 30 mm is a fat 1 1/8" and 12 mm is a skinny 1/2 inch bolt. I wouldn't want to attach the ball to the frame with anything smaller but you could always drill it out and tap it 5/8 or 3/4. If you are looking for a US source, look for a drilling ball between 1 1/8 and 1 3/16. 1 3/16 is about 6 thousandths over 30 mm. Quote Link to comment Share on other sites More sharing options...
racepres Posted June 25 Author Report Share Posted June 25 1 hour ago, Wooden Nickel said: Well 30 mm is a fat 1 1/8" and 12 mm is a skinny 1/2 inch bolt. I wouldn't want to attach the ball to the frame with anything smaller but you could always drill it out and tap it 5/8 or 3/4. If you are looking for a US source, look for a drilling ball between 1 1/8 and 1 3/16. 1 3/16 is about 6 thousandths over 30 mm. Sounds like a Plan... Next trip thru Louisville...I owe ya a toddy Quote Link to comment Share on other sites More sharing options...
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