Author Topic: Rear wheel alignment  (Read 515 times)

Offline paintingsteve123

  • Moving Up
  • **
  • Join Date: Mar 2024
  • Posts: 32
  • Karma: 0
Rear wheel alignment
« on: 31.12. 2024 11:43 »
Hi guys,
This is my last stupid question for this year.
I've just loosely laced up the rear wheel on my 53 flash.
And I'm not sure  if I'm on the right side for the offset or does it need to be reversed.
Or does it look roughly right..
I can't find the pictures I took prior to dismantling it.
I will be taking to someone else for the finishing tweak but he's not old school.
Thanks
61 A10

Offline limeyrob

  • Wise & Enlightened
  • *
  • Join Date: Nov 2023
  • Posts: 1148
  • Karma: 5
Re: Rear wheel alignment
« Reply #1 on: 31.12. 2024 11:51 »
Can't tell from picture but the rim should be offset towards the sprocket side.
Slough 59 GF/SR

Offline paintingsteve123

  • Moving Up
  • **
  • Join Date: Mar 2024
  • Posts: 32
  • Karma: 0
Re: Rear wheel alignment
« Reply #2 on: 31.12. 2024 11:59 »
It's is off set but would it be more if I flipped it around.
As I believe the spoke holes are at more sharper angle on the other side, if that makes sense.
61 A10

Online chaterlea25

  • Wise & Enlightened
  • *
  • Join Date: Jun 2009
  • Posts: 4220
  • Karma: 54
Re: Rear wheel alignment
« Reply #3 on: 31.12. 2024 12:11 »
Hi,
A forum search should find a table of correct wheel offsets

John
1961 Super Rocket
1963 RGS (ongoing)

Online Rex

  • Wise & Enlightened
  • *
  • Join Date: Apr 2017
  • Posts: 1831
  • Karma: 9
Re: Rear wheel alignment
« Reply #4 on: 31.12. 2024 12:46 »
Why not just mount the wheel in the frame and see how it looks?
It's a better way of checking for correct off-sets than using arbitrary figures from long ago, as the rim width will almost certainly be slightly different anyway.

Offline paintingsteve123

  • Moving Up
  • **
  • Join Date: Mar 2024
  • Posts: 32
  • Karma: 0
Re: Rear wheel alignment
« Reply #5 on: 31.12. 2024 14:06 »
Good call,
Will do that. 👍
Thanks for help.
61 A10

Offline limeyrob

  • Wise & Enlightened
  • *
  • Join Date: Nov 2023
  • Posts: 1148
  • Karma: 5
Re: Rear wheel alignment
« Reply #6 on: 31.12. 2024 14:57 »
The more dished spoke side (more angled spoke holes) is the plain side, flatter is the sprocket side.  I believe the frame is symmetrical at the swing arm pivot so you can mark a centre line off that. It should match the off sets in the manual so you get a double check.
Slough 59 GF/SR

Online Rex

  • Wise & Enlightened
  • *
  • Join Date: Apr 2017
  • Posts: 1831
  • Karma: 9
Re: Rear wheel alignment
« Reply #7 on: 31.12. 2024 15:55 »
Or mount in the frame and use two straight edges (one each side of the rim but contacting it in two positions) going forward either side of the frame  top tube.
It always amazes when out on a run so see just how many classic bikes are crabbing down the road.

Offline paintingsteve123

  • Moving Up
  • **
  • Join Date: Mar 2024
  • Posts: 32
  • Karma: 0
Re: Rear wheel alignment
« Reply #8 on: 31.12. 2024 16:01 »
Few things for me to try,
Thanks.
Happy New year to you all.
61 A10

Online MikPowl

  • A's Good Friend
  • ***
  • Join Date: Feb 2014
  • Posts: 73
  • Karma: 0
Re: Rear wheel alignment
« Reply #9 on: 31.12. 2024 16:29 »
I've just done this very job myself on my plunger A10. I set it up with about 16mm blocks supporting the rim as the hub sat on the bench, with driving teeth on the underside. With the lacing done finger tight I supported the frame free of the ground in a plywood jig and fitted the wheel. From there it was easy to see what adjustment were needed get the rim central in the frame and also central to the wheel spindle. Also did the front with a simple plywood jig.

Offline paintingsteve123

  • Moving Up
  • **
  • Join Date: Mar 2024
  • Posts: 32
  • Karma: 0
Re: Rear wheel alignment
« Reply #10 on: 31.12. 2024 16:41 »
Looking at your photos we are nearly at the same stage except I've put the lower part of the engine in yesterday.
61 A10

Online MikPowl

  • A's Good Friend
  • ***
  • Join Date: Feb 2014
  • Posts: 73
  • Karma: 0
Re: Rear wheel alignment
« Reply #11 on: 31.12. 2024 18:56 »
You're miles ahead! My motor is still several bags of bits.

Offline paintingsteve123

  • Moving Up
  • **
  • Join Date: Mar 2024
  • Posts: 32
  • Karma: 0
Re: Rear wheel alignment
« Reply #12 on: 01.01. 2025 10:38 »
I had the engine cases vapour blasted and that has made a big difference to its look.
I ended up sending the bottom half to SRM because of alignment issues.
That cost loads, didn't tell the misses about that one. 😉
61 A10

Online MikPowl

  • A's Good Friend
  • ***
  • Join Date: Feb 2014
  • Posts: 73
  • Karma: 0
Re: Rear wheel alignment
« Reply #13 on: 01.01. 2025 14:38 »
Sorely tempted to do the same myself.  But I still have to get the tank repaired and plated plus loads of other plating which would strain even Elon Musk's wallet.

Online BagONails

  • Valued Contributor
  • ****
  • Join Date: May 2021
  • Posts: 417
  • Karma: 4
Re: Rear wheel alignment
« Reply #14 on: 02.01. 2025 04:49 »
That's a very smart workshop you have there Mik!
Ian
59 GF A10
67 Spitfire under resto
2013 kwaka W800 Desert Sled (ex write off)

Nil Desperandum