Author Topic: Silly front brake question  (Read 346 times)

Offline trevinoz

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Re: Silly front brake question
« Reply #15 on: 03.12. 2019 21:39 »
Richard, the A7 with the 7" front brake used this leg. Single sided, that is.

Online KiwiGF

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Re: Silly front brake question
« Reply #16 on: 03.12. 2019 22:23 »
Thanks guys. I didn't think that one fork leg could be from another model - but now that I do, I will probably cut the lug off so that it doesn't interfere with the cable run or change it for an 'original' part...  *eek*

I have the same set up as you on my b31, I fitted an 8” brake to replace 5he weedy 7” and ended up with 2 spare lugs on the forks, one for the locating dowel which provides the locking mechanism on the 7”, and one for the cable (as that is on the brake plate instead).

New Zealand

1956 A10 Golden Flash EA7-168x, CA10 913x, left BSA together for Liverpool, 5th Dec 1955.

1949 B31 rigid “400cc hot rod” (favourite bike)

1949 C11 rigid, but why!!! (cos it was cheap)

1937 B21, missing parts so mission impossible?

1952 Armstrong Siddeley Whitley for rainy days (with wife).

GL1800 Goldwing not sure why, maybe cos it always starts

Online JulianS

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Re: Silly front brake question
« Reply #17 on: 03.12. 2019 22:45 »
Photo shows the other side of the type of fork leg.

The lug engages with circular peg on the single sided 7 inch front brake used on some A7 B series M series and pre unit C.

Online Greybeard

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Re: Silly front brake question
« Reply #18 on: 03.12. 2019 22:46 »
I'm not going to say anything about the angle of the dangle of the doo-dab!  *bash*

Offline RichardL

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Re: Silly front brake question
« Reply #19 on: 04.12. 2019 03:54 »
Note to self: Never, Ever doubt an Aussie guru. As soon as Trev confirmed the use of the subject leg on early A7s, I found the attached picture right at the top of the pictures page at A7A10.net.

Though, is it "definitly" from an A7? Damn! Did I just go against my own advice?

Richard L.
Plan on signing up for the world-wide 2017 DISTINGUISHED GENTLEMAN'S RIDE on September 30, 2018. Watch website at https://www.gentlemansride.com for details.

Offline Swarfcut

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Re: Silly front brake question
« Reply #20 on: 04.12. 2019 09:09 »
Don't rely on this picture as a definitive " how it should be".  There are one or two parts from different model years that are not strictly correct, but even so it is a well presented bike.

 Shows a typical worn stand, lying a bit too low for easy operation, and the very close run of the silencer against the lower frame member.

 Started life in Scotland, if the plate is original, SJ is Bute area, or its a re reg with a period number, UK DVLA supply unused Scottish area registration numbers for historic vehicles brought back to life, or built from mainly original parts.  How clever is that?

 Seems I was a bit critical of the production welding in my initial post, so sorry for any distress caused to any welders out there, I just got it wrong.

As to whether the leg in question  is from an A7 originally, the answer is maybe. It is a part used on various models in the range at the time of production, and it depends on what front brake was fitted to the forks in the factory. 60 plus years later, 17? owners......anyone's guess. Could have been original, or from any of the models listed by Julian.

Be careful sourcing one on eBay. Some sellers don't know the finer detail of the variants and list the application incorrectly. As the fork bushes and oilseal holders are common, the unwary only find the mistake when the front wheel won't fit....damn, they say, it must be for an Ariel Hub!

Cheers

Swarfy.

Additional. Thanks to GB for drawing attention to the safety critical adjustment of the doo-dab.

Online muskrat

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Re: Silly front brake question
« Reply #21 on: 04.12. 2019 18:37 »
G'day Richard.
I put my slippers on and braved the attack of the Xmas beetles and mozzies to have a look at my A7pl. Yep, identical (dodgy weld and all) *lol*.
Cheers
'51 A7 plunger, '57 A7SS now A10CR, '76 XT500, '77 AG175 '83 CB1100F, '81 CB900F project.
Australia
Muskys Plunger A7

Offline trevinoz

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Re: Silly front brake question
« Reply #22 on: 04.12. 2019 20:29 »
Richard, I guess no one can say that the leg is definitely from an A7.
Maybe B31 or B40 or whatever model used the brake.
Thanks for the compliment, "Aussie guru".
My helmet won't fit now.
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Online muskrat

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Re: Silly front brake question
« Reply #23 on: 05.12. 2019 10:23 »
Trev, go to the top of the class. Leave your books, you'll be back later  *lol*
Yes there's no saying definitely, but if it started life as an A7. A PO may have added the 8" brake.
Cheers
'51 A7 plunger, '57 A7SS now A10CR, '76 XT500, '77 AG175 '83 CB1100F, '81 CB900F project.
Australia
Muskys Plunger A7

Online chaterlea25

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Re: Silly front brake question
« Reply #24 on: 05.12. 2019 22:09 »
Hi All,
Just another warning about buying an unknown fitment leg  *eek*
The 250cc C models leg has the centre mudguard mounting in a different place to the A & B legs
about 3/4in. difference if I remember correctly

John
1961 Super Rocket
1963 RGS (ongoing)