Author Topic: Truing wheels, tyre selection and balancing  (Read 1806 times)

Offline K2-K6

  • Grogu
  • *
  • Posts: 5236
    • View Profile
Re: Truing wheels, tyre selection and balancing
« Reply #15 on: May 28, 2018, 07:57:30 PM »
I use these sites to compare specs,  may be of use.

https://tiresize.com/calculator/

It may be the chainguard that first limits the rear, coming close to the tire shoulder. 

Or with extra link in chain you can possibly run it slightly more rearward to bring the tire out a bit from any narrowing at the front of the swingarm to increase the tire width.

Offline Trigger

  • Grogu
  • *
  • Posts: 8434
  • Engines built on reputation, not advertising.
    • View Profile
Re: Truing wheels, tyre selection and balancing
« Reply #16 on: May 28, 2018, 08:01:10 PM »
The closest part to the tyre is the torsion bar. With a 120 tyre, it only leaves you about 10mm  ;)

Offline Underdog1

  • SOHC Expert
  • Posts: 486
    • View Profile
Re: Truing wheels, tyre selection and balancing
« Reply #17 on: May 28, 2018, 08:53:44 PM »
The closest part to the tyre is the torsion bar. With a 120 tyre, it only leaves you about 10mm  ;)

Nice, thinking about it I think the bike came with some ancient 4.50 on the rear anyway.

I really like the TT100 but the closest sizes I can find to what I’m after is a 4.10-19 59H up front and a 4.25/85-18 64H rear. For whatever reason the 4.25 Tyre is the only one in the TT100 that has a profile specified (85). Is this suitable?

Offline Trigger

  • Grogu
  • *
  • Posts: 8434
  • Engines built on reputation, not advertising.
    • View Profile
Re: Truing wheels, tyre selection and balancing
« Reply #18 on: May 28, 2018, 09:24:16 PM »
4.10 on the front is tight but, it depends on the mudguard. You will also get a lot of tyre flex at that size on the front. Most people drop the wheel rim size to 18" on the front because there is a greater range of that tyre size  ;)

Offline Underdog1

  • SOHC Expert
  • Posts: 486
    • View Profile
Re: Truing wheels, tyre selection and balancing
« Reply #19 on: May 28, 2018, 10:22:12 PM »
4.10 on the front is tight but, it depends on the mudguard. You will also get a lot of tyre flex at that size on the front. Most people drop the wheel rim size to 18" on the front because there is a greater range of that tyre size  ;)

Hmm no mudguard just using the inner brace section from one. The next size down is 3.60 which I feel won’t give me the thick rubber look I want.

May just go for the 4.10 up front as in not exactly going to be getting my knee down on the old girl anyway

Offline Bryanj

  • Grogu
  • *
  • Posts: 10695
    • View Profile
Re: Truing wheels, tyre selection and balancing
« Reply #20 on: May 29, 2018, 03:28:50 PM »
The TT100 sizes you quote are what we fitted when the bike was current

Offline Underdog1

  • SOHC Expert
  • Posts: 486
    • View Profile
Re: Truing wheels, tyre selection and balancing
« Reply #21 on: May 29, 2018, 05:04:18 PM »
The TT100 sizes you quote are what we fitted when the bike was current

With the 3.60 or 4.10 up front?

Offline Bryanj

  • Grogu
  • *
  • Posts: 10695
    • View Profile
Re: Truing wheels, tyre selection and balancing
« Reply #22 on: May 30, 2018, 06:07:21 AM »
3.6 on 500, 4.1 on 750

Offline Underdog1

  • SOHC Expert
  • Posts: 486
    • View Profile
Re: Truing wheels, tyre selection and balancing
« Reply #23 on: June 17, 2018, 10:58:44 PM »
Taking the wheels to get the tyres fitted up and balanced tomorrow hopefully. Would much prefer the spoke mounted bead weights rather than the usual stick on type. Is this likely something I’ll have to sort myself or do bike garages tend to stock these?

Offline Nurse Julie

  • 1977 CB550/4 Mongrel Brat. 1974 UK 500/4 K1. Honda CD250u.
  • Grogu
  • *
  • Posts: 8206
    • View Profile
Re: Truing wheels, tyre selection and balancing
« Reply #24 on: June 17, 2018, 11:20:03 PM »
They may not need balancing at all. None of our wheels have weights on them and trust me, we have lots of wheels  :)
LINK TO MY EBAY PAGE. As many of you know already, I give 10% discount and do post at cost to forum members if you PM me direct.
https://www.ebay.co.uk/sch/julies9731/m.html?item=165142672569&rt=nc&_trksid=p2047675.m3561.l2562

LINK TO MY CB400/4 ENGINE STRIP / ASSESSMENT AND REBUILD...NOW COMPLETE
http://www.sohc.co.uk/index.php/topic,14049.msg112691/topicseen.html#new

Offline Lobo

  • Lobo
  • SOHC Master
  • Posts: 1568
  • Lobo
    • View Profile
    • Lobo
Re: Truing wheels, tyre selection and balancing
« Reply #25 on: June 18, 2018, 12:57:07 AM »
Underdog, a while ago my MOT testing station told me those spoke mounted weights now illegal as they can come loose / fly off / become a bullet. Regardless, like you I prefer ‘em and sourced s job lot off here - and statically balance my own wheels. Never had a problem...
(Trig - you do MOTs... this right??)
« Last Edit: June 18, 2018, 01:17:42 AM by Lobo »

Offline Underdog1

  • SOHC Expert
  • Posts: 486
    • View Profile
Re: Truing wheels, tyre selection and balancing
« Reply #26 on: June 18, 2018, 10:12:51 AM »
Can anyone confirm what the offset needs to be in these wheels when they get trued?

Offline Bryanj

  • Grogu
  • *
  • Posts: 10695
    • View Profile
Re: Truing wheels, tyre selection and balancing
« Reply #27 on: June 18, 2018, 12:23:46 PM »
Zero

Offline Underdog1

  • SOHC Expert
  • Posts: 486
    • View Profile
Re: Truing wheels, tyre selection and balancing
« Reply #28 on: June 18, 2018, 12:52:36 PM »
Zero

That’s what I thought, I called my local bloke earlier and he made me clarify like 3 times there was no offset, and then confirm the rear wheel was a drum and I said I’d go and double check just in case I’ve got it wrong!

 

SimplePortal 2.3.5 © 2008-2012, SimplePortal