Fork Shrouds - A7 C15?

[triplethreat3d]

Another question from the newbie - this time on fork shrouds. The bike came with a C15 fork on the A7 frame which not only does not look right but also the forks sag. Rather than replace springs and bushes I am buying a B33 fork with right tripletree and legs which should work with the axle and 7" brake. Question is will the shrouds fit the heavier fork? Dimensions are roughly 35.6 cm (14") tall by 5 cm (~2") wide at the bottom end.  Tried to get dimensions from Draganfly but they only have a picture, no physical stock at the moment. Anyone out there got a ruler to measure the height of their shrouds? Pictures attached of piece and bike.

Thanks all.     

[muskrat]

G'day tripletreat3d.
I might be wrong but the one in your picture looks like a later A50/A65 type with the elongated headlight hole.
Cheers

[chaterlea25]

Hi  triplethreat3d

I just measurees a set from a B series the distance from the top to the slot for the bottom yoke is 160mm
that seems more than you show??

HTH
John

[triplethreat3d]

Thanks for response - Just measured the yoke slot opening on the shroud. It is about 1 inch opening so the length from top of shroud to top of yoke slot opening is 146mm and to the bottom of the slot is 171mm.  So 160mm is close, unless it is to either the top or bottom of the opening? The fork I am buying has ears and had gaitors. So I can rebuild it that way but I thought the shrouds I have would look better if they would work. Important thing is that the legs will work with 7" brake and the axle. 

[muskrat]

I just measured both of my A's (51 plunger & 57 swingarm). From top to center of pinch bolt is 7" or 178mm, diameter at bottom is 2 1/4". The one in your picture is less from top to pinch bolt and as it looks like an A65 it could have come from an early version with the drop type top yoke.
Cheers

[triplethreat3d]

Thank you for taking time to measure.  Shrouds I have must be for C15 as they match what I see in pics. I"ll probably go with the gaitor setup on the fork I'm buying with the 42-5035 yoke that is listed as being used on  As from 54-62 and Bs 55-60. Appreciate the help. The wider triple with look better and a better fork than the C15 should improve the ride.   

[chaterlea25]

Hi  triplethreat3d
Sorry if I was not clear enough 160mm is to the top of the slot

I am buying a B33 fork with right tripletree and legs which should work with the axle and 7" brake

As the B33 and A series yokes are wider than the C15 the wheel axle will be too short 

There are three different types of B33 and A series fork bottom legs, depending on the year produced
different wheels were fitted and are not really interchangable?
The early type had a LH screw in spindle and single sided hub ( also used on the Gold Stars and some 60's A65 and B44's )
Then the Full width Ariel HUB fork, through spindle with nut
Finally the split clamp fork legs used with the full width 8in. iron hub

HTH
John

[triplethreat3d]

Thanks for the tips. Axle is 7" wide and not threaded. Both ends of the axle are a smaller diameter than the center.  This axle could have been machined for the build - this is a bitsa. The brakes are 7" with 1 & 1/8" width shoes which according to Haynes manual for 1949 forward  A7 & A10 is used from 1947-1953. Serial number shows this as a 51 A7S.  I cannot make the axle match any of the illustrations I see.  Will take the frame and wheel assembly with me to match to the new fork in question to see if it all fits. I understand the yoke is wider - that is why I want it, have to figure out how to make it work.

[WozzA]

I've noticed that some aftermarket type of shrouds have the headlight ears
protruding from a more central position than original...
making the 7" headlight a VERY TIGHT fit, to the point of distorting the ear when fitting...
The original are welded further out from centre.. & 7" headlight fits perfectly.

[triplethreat3d]

Spot on. The small bucket on it has spacers. The bucket to go on i, 50 AJS or 52 Matchless 7". does not fit, the ears would have to be bent a little but they are deep enough. Wider triple will solve this problem as it has ears already so I may not use the 14" shrouds I have.