Silly front brake question

[trevinoz]

Richard, the A7 with the 7" front brake used this leg. Single sided, that is.

[KiwiGF]

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... 

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).

[JulianS]

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.

[Greybeard]

I'm not going to say anything about the angle of the dangle of the doo-dab! 

[RichardL]

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.

[Swarfcut]

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.

[muskrat]

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) .
Cheers

[trevinoz]

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.
 

[muskrat]

Trev, go to the top of the class. Leave your books, you'll be back later 
Yes there's no saying definitely, but if it started life as an A7. A PO may have added the 8" brake.
Cheers

[chaterlea25]

Hi All,
Just another warning about buying an unknown fitment leg 
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

[colindock]

I’m confused! It’s probably a daft question, but can one of you more experienced folk give me some advice? I’m trying to fit the front brake cable to the rebuilt front wheel of my 1954 A10 plunger. The cable (from Draganfly) can screw into both the lug on the bottom of the fork leg as well as the brake cover plate ‘fulcrum and adjusting pin’ – the threads are the same. This make me think that the cable should go through both, but they are not in line. I’ve looked at photos of other bikes and tried to route the cable correctly. My questions are; does the cable go through both holes? Does the pin on the cover plate screw out to align with the lug on the front fork? I assume that the brake operating lever should be 90 degrees (or more) to the cable, but the cable I have is too short when fitted into either bracket… (I have re-chromed my ‘standard’ handlebar lever by the way, which hasn’t got any cable adjuster in it). Help please? Here’s a photo which hopefully shows what I’m gibbering about.

OK here is the front hub of my 53 a10 plunger hop it helps

[berger]

my post removed talking sht again 

[Minto]

I have a 7" brake in my 52 A10 with what appears to be the same fork leg as the OPs, now I'm not in the least surprised if it is the wrong one for the bike, nor do I care that much, but the brake is utterly woeful and largely useless. If I found a wheel with an 8" hub is it just a case of chopping the lug off the leg to make it all work? Is the rest of the leg the same?
This is the clearest pic of the front of the bike I can find, just zoom in at the appropriate part.
Oh, not very clear at all now i've resized it. Soz!

[KiwiGF]

I have a 7" brake in my 52 A10 with what appears to be the same fork leg as the OPs, now I'm not in the least surprised if it is the wrong one for the bike, nor do I care that much, but the brake is utterly woeful and largely useless. If I found a wheel with an 8" hub is it just a case of chopping the lug off the leg to make it all work? Is the rest of the leg the same?
This is the clearest pic of the front of the bike I can find, just zoom in at the appropriate part.
Oh, not very clear at all now i've resized it. Soz!

I left the lug (s) in place, you have to make up a custom plate for a brake steady/ torque arm, i used 8mm aluminium but thats a bit thick and was a squeeze to fit without causing stress on the brake plate.

Pic of my b31 brake (std is 7”) is in an earlier post above.

[Rex]

But the larger hub and brake fit between the fork legs without further mods?