Author Topic: Tyres  (Read 326 times)

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Online BeenyBoy

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Tyres
« on: March 21, 2020, 05:37:07 pm »
Hi guys

quick question...I need a new front tyre- original 3.25 and I've been offered a 3.00... will this fit ?
1955 B31;1954 C11G;1971 B175;1965 Matchless G2csr

Online Owen

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Re: Tyres
« Reply #1 on: March 21, 2020, 05:43:51 pm »
Which bike is it for? 300-19 Was The original fitment for the C range as far as I know.
1940 C12 (350cc)
1945 C10 & C11
1953 C10 & C11

Online BeenyBoy

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Re: Tyres
« Reply #2 on: March 21, 2020, 06:13:24 pm »
Hi Owen

I hate to admit it but its not actually a BSA..... its a Matchless..... but I'd rather ask the question on this forum because you lot are friendlier and probably more knowledgeable.......
1955 B31;1954 C11G;1971 B175;1965 Matchless G2csr

Online camman3

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Re: Tyres
« Reply #3 on: March 21, 2020, 07:16:46 pm »
Yes it will fit, and very much doubt you notice any difference.
You could also fit a 3.50 if it doesn't foul on anything....pretty flexible with tubed tyres.
Graham
1957 C12
In sunny (sometimes) Christchurch, Dorset, UK

Online BeenyBoy

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Re: Tyres
« Reply #4 on: March 21, 2020, 07:53:45 pm »
Thanks Graham

Its really just a cost thing.... 325 x 17 tyres are like the proverbial RHS and priced accordingly  but for some reason 300 are more readily available
1955 B31;1954 C11G;1971 B175;1965 Matchless G2csr

Offline colin-gser

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Re: Tyres
« Reply #5 on: March 22, 2020, 09:56:49 pm »
I’d say it depends on size of rear tyre

Older bikes generally the same or 1 size (0.25” steps) different ie if you’re rear is a 3.5 go for a 3.5 as well rather than a 3.0 if the 3.25 is loadsa money

Its only modern bikes with geometry that cope with big steps in tyre sizes

Colin

Offline Ginge

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Re: Tyres
« Reply #6 on: March 24, 2020, 11:14:41 am »
I run a 3.25 X 19 Avon on a 72 oil in frame 650 Triumph.  I use a 325 x 19 Metzler metric equivalent on a 71 ‘500 Triumph.  Both bikes are spirited performers.

I wouldn’t baulk at putting a 300 tyre on a Matchy which ( not to be rude) is probably less spirited and more of a torquey slogger.

I presume it’s a 500?

Wider front tyres can be a pain to remove if they foul the fork leg/ mudguard stays.

How often do you ride it and how do you ride it?  On the straight and narrow I don’t think it matters.  If you are throwing it into the corners at speed it might.

Narrow tyres cut through gravel and water a bit better..

Ginge.

Online BeenyBoy

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Re: Tyres
« Reply #7 on: March 24, 2020, 09:04:59 pm »
Thanks Ginge

Its a 250 CSR of 1965 vintage and currently in lots of bits- the frame and bits and bobs are at the powder coaters- the jobs ben done but I cant pick them up because of the lockdown... so stuck at the moment. It was in a helluva mess when I got it- see pix- but we;re getting there
1955 B31;1954 C11G;1971 B175;1965 Matchless G2csr

Online Tman

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Re: Tyres
« Reply #8 on: March 24, 2020, 09:10:53 pm »
Those bikes seem to be coming out of the woodwork these days. Frank Westworth's been extolling their virtues recently, and a mate was offered one by his neighbour last month.
Big old pair of crash bars on the back of that one though..

Online hampshirebiker

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Re: Tyres
« Reply #9 on: March 29, 2020, 07:00:03 pm »
One of the livelier 250s.
Postal - Liphook Hants - But just into West Sussex.

Online BeenyBoy

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Re: Tyres
« Reply #10 on: March 29, 2020, 07:32:56 pm »
A bit different to my C11g then........
1955 B31;1954 C11G;1971 B175;1965 Matchless G2csr

Online hampshirebiker

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Re: Tyres
« Reply #11 on: March 29, 2020, 08:24:29 pm »
I've sent you a PM re. a road test.
Postal - Liphook Hants - But just into West Sussex.

Online donkey

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Re: Tyres
« Reply #12 on: March 29, 2020, 08:30:30 pm »
I have a few bits and bobs for the M14/G2 sitting in the shed?
donkey
Love plodding around on the old c11g

Offline George B Walke

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Re: Tyres
« Reply #13 on: March 30, 2020, 08:00:50 pm »
Just wait till you have to put all that 'orrible frame together.
Sort out your biggest tyre levers...............

Online BeenyBoy

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Re: Tyres
« Reply #14 on: March 30, 2020, 08:27:30 pm »
I'm in need of a Left Hand Side cover if you happen to have one Donkey

The frame and bits and bobs are sitting at the powder coater awaiting collection but because the company are shut because of the lock down I can't get them back- very frustrating !
1955 B31;1954 C11G;1971 B175;1965 Matchless G2csr