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CL77 wheel width and aluminum wheels

BS1275

Member
Joined
Sep 19, 2022
Total Posts
38
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43
Location
New Philadelphia, Ohio USA
I know I've read it somewhere but can't find it, does anyone know the width of the front and rear rims on an early CL77?
I'd like to get aluminum rims but don't want to spend a fortune and have read pretty good reviews on Rising Sun rims from 4into1.
But, the only 40 spoke rim they show is a 1.85, which will probably work for the front, but I'm sure the rear is wider. They do show a 2.50x18 40 spoke,
so maybe I could go that way and put a little larger tire on it rather than a 3.50.

Any thoughts, anyone??
 
The rims are two different spoke counts (40F) and (36R) and both 19" which complicates your rim size choices and the selection available. The spokes could also be an issue, as I used aftermarket new spokes on my original rims and I had to trim quite a few of one set of spokes.
The large or small brake drums used on the different models could also need to be considered in the correct spoke selection.

I'm sure Buchannans rim and spoke could sort it out for you, or possibly sell you some of what you need for a DIY deal.
 
Flyin900,
I agree with you about Buchanan's, but don't really want to spend that much. I'd probably rechrome my original rims as I've already gotten quotes
that aren't too outrageous. But I still like the aluminum rim idea.
Also, the early small brake rear wheel is 40 spoke, 19 inch, but wider than the front.
 
I am quoting for my 1966 bike with the larger later series brake drums! This is accurate for my 1966 CL 77 bike, as confirmed by my recent spoke count.

The front rim is a 40 spoke count and the rear rim is a 36 spoke. These rims are the original restored and rechromed DID Honda CL77 rims.
 
Flyin900 said:
I am quoting for my 1966 bike with the larger later series brake drums! This is accurate for my 1966 CL 77 bike, as confirmed by my recent spoke count.

The front rim is a 40 spoke count and the rear rim is a 36 spoke. These rims are the original restored and rechromed DID Honda CL77 rims.
Click to expand...
After looking for 36 spoke rims online, it might be easier to switch to a later rear hub. Lots more available than 40 hole.
 
BS1275 said:
I know I've read it somewhere but can't find it, does anyone know the width of the front and rear rims on an early CL77?
I'd like to get aluminum rims but don't want to spend a fortune and have read pretty good reviews on Rising Sun rims from 4into1.
But, the only 40 spoke rim they show is a 1.85, which will probably work for the front, but I'm sure the rear is wider. They do show a 2.50x18 40 spoke,
so maybe I could go that way and put a little larger tire on it rather than a 3.50.

Any thoughts, anyone??
Click to expand...
WM2 1.85 x 19 wheels - 36H (R) and 40H (F)

The original tires should be: 3.50-19 Rear tire and 3.00-19 Front - Tube-Type (plus rubber flap)

Closest aluminum ones I've found to the original's - are from Italy and not quite the 'perfect' replica look as they have an additional 'lip' on the outer edge of the rim - where the DID's not have and are flat.
 
d420 said:
Closest aluminum ones I've found to the original's - are from Italy and not quite the 'perfect' replica look as they have an additional 'lip' on the outer edge of the rim - where the DID's not have and are flat.
Click to expand...
That I think is incorrect. The original DID's have a raised edge around the rim outer section that is typical on a off road style wheel for extra strength. The CB77 likely used a standard type rim with no raised edge on the outer rim section. The originals also have a rim lock option drilled into the rim that the aftermarket may not offer, yet not a big deal.
 
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BS1275 said:
Flyin900,
I agree with you about Buchanan's, but don't really want to spend that much. I'd probably rechrome my original rims as I've already gotten quotes
that aren't too outrageous. But I still like the aluminum rim idea.
Also, the early small brake rear wheel is 40 spoke, 19 inch, but wider than the front.
Click to expand...
Mine has a 40 spoke front rim and a 36 spoke rear rim and these are original DID's as previously noted. The rear rim is wider than the front rim as you noted. This observation is from my restored bike which was quite original overall before the restoration, so I believe this statement to be correct.
 
Flyin900 said:
Mine has a 40 spoke front rim and a 36 spoke rear rim and these are original DID's as previously noted. The rear rim is wider than the front rim as you noted. This observation is from my restored bike which was quite original overall before the restoration, so I believe this statement to be correct.
Click to expand...
Flyin900, do you know the width of the rear rim?
 
I looked at both rims and there is no size noted anywhere on the rims. Just a DID logo stamped into the metal near the air valve on both rims. I guess Honda didn’t put the sizes on them back in the day. I could measure the width if you could use that as a confirmation. The 1:85 quoted by d420 is a inch measurement ???

Did you buy Bill Silvers guide to assist in your restoration/search as I am sure he has the info in there?
 
Flyin900 said:
I looked at both rims and there is no size noted anywhere on the rims. Just a DID logo stamped into the metal near the air valve on both rims. I guess Honda didn’t put the sizes on them back in the day. I could measure the width if you could use that as a confirmation. The 1:85 quoted by d420 is a inch measurement ???

Did you buy Bill Silvers guide to assist in your restoration/search as I am sure he has the info in there?
Click to expand...
No, I didn't buy his guide, though I did purchase some transmission parts from him. I have a really old repair manual with no name and a Clymer's that came with a CL77 I bought back in the 80's. I swear I read in one of those the wheel widths, but now I can't find it.
Anyway, I still have the tires mounted so I measured the outside width, the front is 2.35", and the rear is 2.75". So assuming d420 is correct and the front is a 1.85 rim, subtracting .5 from 2.75 gives me a 2.25 width for the rear. But in my searching I haven't seen that width listed, though I have seen 2.15" listed. The search continues.
 
My rims appear to be the same measurements as yours both front and rear. A call or email to Bill will clear this up for you and likely your best bet for accurate information.
 
Agreed, I measured my stock rims last night as well, and the rear was 66mm outside (tire still on the wheel) and the front was 58mm so that corresponds to WM2 (1.85") and and WM1 (1.60").
 
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