Topic: Wheel identification for Speedometer drive

[FreshProduceForDays]

Hey everyone,

If this is the wrong forum to post this question on I apologize. I am new here.

I have recently purchased a 1977 CB550K. The bike is heavily modified. The only stock components are the frame, motor, and forks.

My issue is that it doesn't have a speedometer. The wheels are factory Honda wheels but not for my model. They are stamped MT2.15x19 Enkei Japan 65M. I have no doubt that the drive will be a "60MPH@2240RPM" ratio I am just unsure about compatibility to the wheel. I have tried searching for the model and year this wheel was produced with no luck. The closest thing I found was an ebay listing for a 1982-83 CB750 SC nighthawk wheel 18x2.5.

Attached is a picture of my front wheel and the ebay listing.

I appreciate any help or insight you might have. Thank you.
 
Edit 1: Stamped markings as follows.
"HONDA"
"JAPAN"
"Enkei" logo
"JWL" logo
"MT2.15X19"
"J 19XMT2.15 DOT"
"65M"
"Tubeless Tire Applicable"

Rear wheel identical markings except for:
"18XMT2.5"
"64M"

[seanbarney41]

Enkei is a high quality Japanese wheel manufacturer.  They are well known as an oem supplier for Kawasaki.  I have not heard of stock Honda's using Enkei wheels nor have I ever seen the particular design you have displayed.  I believe there was a european aftermarket company, known as Selber(German?) that had a design similar to these in the 70s/80's.

[FreshProduceForDays]

Thank you for the response. I really know nothing about Honda/Enkei/Kawasaki wheels in general but I do know these are Honda wheels because it is stamped Honda. Other than that I have absolutely no idea.

[Scott S]

 I think you're on the right track with the Nighthawk lead. Look at 650 Nighthawk's, too.

[FreshProduceForDays]

Yeah I've tried many different versions and years of the nighthawk with no luck. I'm going to have to guess at which speedometer drive will work.

[seanbarney41]

Thank you for the response. I really know nothing about Honda/Enkei/Kawasaki wheels in general but I do know these are Honda wheels because it is stamped Honda. Other than that I have absolutely no idea.

The proof is in the pudding.  Cool wheels!  Never seen these before.

[Alan F.]

Be sure to choose a speedometer drive from a bike with the same diameter wheel, the gearing was different for each wheel diameter to achieve "60MPH@2240RPM" at the output to the cable.

[scottly]

Looks like an '82-83 Honda Ascot wheel, but the same style was used on different models. The speedo drive is on the left side on those, not the right side like with SOHCs. Please post a pic or two of the left side. I can see there is a two piston caliper installed with what looks like a piece of thin sheet-metal to adapt it to the SOHC fork? This may be unsafe!!??  What is the diameter of the front brake rotor? Is the rear also disc brake?