I've searched the forums for the information and only came up with what appears to be dis-information.
One thread indicated a ebay seller listed the 750F & 550K/550F rear were the same, problem is that the 750F hub is larger than the CB550K from '74-'76. The '77-'78 CB550K were different yet from the earlier 550K...
Here's some part number info I pulled from Honda fishe information available from the web on ServiceHonda:
’74 – ‘76 CB550K Rear Spokes, Hub, Rim:
09 SPOKE A, RR. 42601-283-000 020 $6.11 $4.77
11 SPOKE B, RR. 42604-283-000 020 $5.02 $3.92
10 HUB, RR. WHEEL 42601-323-030 001 DISCONTINUED
15 RIM, RR. WHEEL (18) 42701-404-771 (replaces 42701-283-003) 001 DISCONTINUED
15 RIM, RR. WHEEL (18) 42701-404-771 001 DISCONTINUED
’77 550K rear spokes, rim, hub:
11 RIM, RR. WHEEL (18) 42701-404-771 (replaces 42701-283-003) 001 DISCONTINUED
11 RIM, RR. WHEEL (18) 42701-404-771 001 DISCONTINUED
27 SPOKE AS (8X144.5) 97313-69129-10 020 $2.78 $2.17
28 SPOKE BS (8X144) 97C07-69128-10 020 $2.78 $2.17
07 HUB, RR. WHEEL 42601-404-000 001 DISCONTINUED
’76 750A Rear Spokes, Hub, Rim:
11 SPOKE ASSY. A, RR. 42606-393-700 (replaces 42606-371-305) 020 $5.65 $4.42
11 SPOKE ASSY. A, RR. 42606-393-700 020 $5.65 $4.42
12 SPOKE ASSY. B, RR. 42607-393-700 (replaces 42607-371-305) 020 $5.65 $4.42
12 SPOKE ASSY. B, RR. 42607-393-700 020 $5.65 $4.42
09 HUB, RR. WHEEL 42601-300-050 (replaces 42601-300-040) 001 DISCONTINUED
09 HUB, RR. WHEEL 42601-300-050 001 DISCONTINUED
15 RIM, RR. WHEEL 42701-371-003 001 DISCONTINUED
’76 750F Rear Spokes, Hub, Rim:
39 SPOKE BS (8X147.5) 97285-69135-10 020 $2.78 $2.17
40 SPOKE BS (8X147) 97686-69134-10 020 $2.78 $2.17
14 HUB, RR. WHEEL 42601-392-000 001 DISCONTINUED
18 RIM, RR. WHEEL 42701-300-013 001 $171.69 $129.37
So, part numbers don't match up...
I know I can buy them from Buccanan's (spelling?) but, I'm working with a seller I've done business with in Thailand who sources good parts for my S90, to see if he can find similar quality spokes and possibly even a decent alloy rim price.
SO, what is the proper length on the rear spokes? I'm trying not to take my rear wheel apart to find out this info as I'm trying to keep the bike mobile...
Thanks!
David
