DJM wrote:I had just this problem when I rebuilt the wheels on my CB77 a couple of years ago.
Some of the spokes were run right down and sticking through into the inside of the wheel while others had threads showing outside of the nipple, this was despite using correct OEM spokes and re-using the original rims, I was puzzled.
I took the wheels to an experienced wheel builder for advice, his first advice was 'Why didn't you bring the job to me in the first place' but I like to do things myself if I can.and 'my' wheel was running dead true and was centred correctly, just had a problem with the spoke lengths and projections.
The solution was as easy as it was obvious, he simply loosened half of the spokes and tightened the others which in effect rotated the whole rim around the hub by a few degrees, that simple, all the excess thread dissapeared inside the nipples and nothing to grind off inside the wheel either, mind you, he had been building wheels for close to forty years and this was only my second attempt!
1961 CB72 Project
So when he had the spokes correct I assume all nipples were equal. ............lm
DJM
Thanks for that. I've rebuilt a few wheels over the years and I will look out for that when I finally true up the wheel. My technique is to run all the nipples to within say, 3 threads then run round them all again just taking them up so that the nipple covers all the threads. Then I go round again nipping them up lightly, before moving on to truing up. I once got a lesson at a Railway conference in the US by a Canadian who used to work in a bicycle shop...... G
'60 C77 '60 C72 '62 C72 Dream '63 CL72
'61 CB72 '64 CB77 '65 CB160 '66 Matchless 350 '67 CL77 '67 S90 '77 CB400F
I have a centering stand and I put all nipples same depth (but not tight) then tighten to CENTER keeping my eye on the up and down and any wobble.
Not all that difficult using the stand. ....................lm .
Back from my US jaunt, I a looking forward to a bit of workshop time this weekend. It never ceases to amaze me how many details were different on these 1961 bikes without actually changing the basic appearance.
I picked up a NOS chain guard recently as the guy was selling several at a really good price. I was going to use it on the CB72 as the original is kind of beaten up and had been welded in the middle. It's already had a lot of work done to bring it to decent shape but I was going to replace it. Anyway I put new and originial side-by-side to check and discovered the inner front bracket is a completely different shape, with a 'joggle'. Also, the two holes on the early one are circular, compared with oval on the later ones.  I pulled out all of the other battered and cracked versions that I am going to repar and they are all like the NOS one. The parts list on CMS side lists only one version begining from the very earliest fitment but I notice that the version number is 030, so I wonder when they changed? G '60 C77 '60 C72 '62 C72 Dream '63 CL72
'61 CB72 '64 CB77 '65 CB160 '66 Matchless 350 '67 CL77 '67 S90 '77 CB400F Edged a little closer to completing the painted parts today. Between rain showers I managed to get the silver parts clear-coated and painted the chainguard. The chainguard looks black in this picture but is blue like the rest of the cycle parts.
 Wheel bearings are on order so that I can get the bike up on its wheels next weekend. Ooops - I've just remembered that I have to repair the center stand before I can say I've finished all the painted parts....... :-( G '60 C77 '60 C72 '62 C72 Dream '63 CL72
'61 CB72 '64 CB77 '65 CB160 '66 Matchless 350 '67 CL77 '67 S90 '77 CB400F Richard
We had summer last month. Less watering to do at my allotment garden and the water tanks are full. Who can be upset with that? Yes, Cornwall took a battering. We have just had some heavy showers. Keeps the dust down for painting. G
'60 C77 '60 C72 '62 C72 Dream '63 CL72
'61 CB72 '64 CB77 '65 CB160 '66 Matchless 350 '67 CL77 '67 S90 '77 CB400F
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