Author Topic: rear wheel building  (Read 1014 times)

Offline chooch

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rear wheel building
« on: 22.11. 2016 20:59 »
Hi All ,I am about to embark on rebuilding my a10 rear (7 inch cast hub) ,when I come to true it is it ok to do it with sprocket bolted on so I can fit it on my jig ?  as without I obviously have no bearing to put the cone in ,or am I missing something obvious ,your thoughts would be appreciated as I have never done this before 

Offline Rocket Racer

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Re: rear wheel building
« Reply #1 on: 22.11. 2016 22:21 »
I'm no wheel builder, but given the 2nd bearing in a cast iron hub is in the sprocket, it would be pretty difficult to spin a wheel true without it bolted on.
A good rider periodically checks all nuts and bolts with a spanner to see that they are tight - Instruction Manual for BSA B series, p46, para 2.
New Zealand

Online KiwiGF

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Re: rear wheel building
« Reply #2 on: 22.11. 2016 23:48 »
Hi Chooch  *conf2* ?  I agree with Tim aka rocket racer, and you might want to check the initial lacing does not have to be done with the sprocket out of the way, and then fitted after lacing, probably not, but I have built your particular wheel and might have to be done that way.

I'm an amateur wheel builder, only done a few, but it's surprisingly easy (but time consuming) if you have the right spokes and rim etc, not so easy if you are building a non standard wheel and need to establish the correct spoke length and pattern etc.
New Zealand

1956 A10 Golden Flash  (1st finished project)
1949 B31 rigid “400cc”  (2nd finished project)
1968 B44 Victor Special (3rd finished project)
2001 GL1800 Goldwing, well, the wife likes it
2009 KTM 990 Adventure, cos it’s 100% nuts

Offline chooch

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Re: rear wheel building
« Reply #3 on: 23.11. 2016 07:03 »
Great ,thanks for that ,its as i thought ,,I am looking forward to having a go and will let you know how I get on ,cheers

Online Colsbeeza

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Re: rear wheel building
« Reply #4 on: 24.12. 2017 03:35 »
I hope it is OK to resurrect this thread on wheel building.
I have also rebuilt a few wheels. The Golden Flash, a Honda CL90, a Lilac Flat Twin amongst them.
However, I was never sure when the spoke tension was right.
It is difficult to tell using spanner torque, but a few raps on the spoke would give a ring that I "felt" was OK.
The bikes rode OK and that I suppose is the best test. I never ended up in the gutter with a spare rim around my neck anyway.
Is there any definitive test on spoke tension.?
Have a great Christmas.!! It is 40DegC here today, but promising to be 25 tomorrow for Christmas Day. I have done most of the beer today.! Hic!! *countdown*
Cheers

1961 Golden Flash
Australia

Offline muskrat

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Re: rear wheel building
« Reply #5 on: 24.12. 2017 04:57 »
'51 A7 plunger, '57 A7SS racer now a A10CR, '78 XT500, '83 CB1100F, 88 HD FXST, 2000 CBR929RR ex Honda Australia Superbike .
Australia
Muskys Plunger A7

Offline bsa-bill

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Re: rear wheel building
« Reply #6 on: 24.12. 2017 10:13 »
I bought one of these, was not too expensive  at the time
All the best - Bill
1961 Flash - stock, reliable, steady, fantastic for shopping
1959 Rocket Gold Flash - blinged and tarted up  would have seizure if taken to  Tesco

Offline RoyC

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Re: rear wheel building
« Reply #7 on: 24.12. 2017 10:42 »
I bought one of these, was not too expensive  at the time
I got one too. I moved the one post closer to the other so that the wheel spindle would fit across the posts.

Please excuse finger  *doh*
Roy.
My bike is a 1958 A7SS
Staffordshire UK

Online groily

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Re: rear wheel building
« Reply #8 on: 24.12. 2017 11:18 »
Did mine a few months back (with sprocket on) using similar rig to the pic above. Works fine - in the sense that I haven't ended up in a ditch with a rim round my neck either!
Bill

Online Rex

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Re: rear wheel building
« Reply #9 on: 24.12. 2017 12:36 »
Full width BSA wheels are a piece of wossname to build as the hubs' drillings point the spoke to it's correct rim hole.
If no vertical stand is available it's just as effective to lace the spokes then true the rim horizontally with the spindle in a vice and a pointer/DTI placed on the rear of the vice itself. 
When the spokes are still very loose the spokes "hang together" (ie don't pop out) better when doing a horizontal build too.

Online groily

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Re: rear wheel building
« Reply #10 on: 24.12. 2017 14:39 »
They are.
'Straight pull' is a long country mile easier than hooked jobs, unequal lengths and/or offset rim. Still very pleasing when it comes together though!
Bill

Online Colsbeeza

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Re: rear wheel building
« Reply #11 on: 25.12. 2017 09:23 »
Thanks for the replies, *smile*
Musky - that is a great article which doesn't encourage the ring-ping test. Until now I didn't know you could buy a torque wrench for spokes. Definitely on my next Christmas shopping list. (I wish I had posted this a few weeks ago). Seems I might also acquire a Wheel Balancer as well.
For both tools, there is a huge range out there on the Internet.
The comments on the BSA straight pull are spot on. I had no trouble. The CL90 - I had to unlace it a second time before I got that one right. They are all hooked spokes.
On all wheels I have done, I clamped the wheel spindle in the vice, but with the vice rotated 90 degrees, the wheel would not clear the bench, so I did them at an angle.
The Lilac was a dream. All 4 spoke types ( two per wheel) are identical and straight pull.
Just for fun, I have attached a couple of shots of my Lilac. I hope the moderator doesn't chuck me off.! *red*
Once again, all my questions answered.
Col
1961 Golden Flash
Australia

Offline Greybeard

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Re: rear wheel building
« Reply #12 on: 25.12. 2017 10:38 »
Needed to search the inter-nerd to find information about the Lilac motorcycle.
Greybeard (Neil)
2023 Gold Star
Supporter of THE DISTINGUISHED GENTLEMAN'S RIDE https://www.gentlemansride.com

Warwickshire UK


A Distinguished Gentleman Riding his 1955 Plunger Golden Flash

Online Colsbeeza

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Re: rear wheel building
« Reply #13 on: 26.12. 2017 06:15 »
Yes, They are rare.
The website  http://www.marusholilac.com/
is the world registrar of these bikes, and one of the best motorcycle-related websites around.
Col
1961 Golden Flash
Australia