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#463219 - 11/14/12 7:58 am conical hub front wheel on early forks
run990 Offline
BritBike Forum member

Registered: 10/19/12
Posts: 291
Loc: lancashire united kingdom
ny 65 a65 has the feeble full width sls front brake ,i know the conventional tls is a straight bolt in job,however i have spotted a conical hub front wheel with good chrome right size rim & good tyre ,it seems to have been modified to having the backplate located via the slotted groove rather than by the usuall stud.its been years since i messed with swapping wheels on these bikes ,something is telling me the whole wheel is wider on the spindle or an i wrong.reason for fitting wheel is bike is a daily user & no front brake is becoming a bit of an issue plus the price is good less than half the cost of the earlier tls drum

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#463231 - 11/14/12 10:21 am Re: conical hub front wheel on early forks [Re: run990]
wak Offline
BritBike Forum member

Registered: 03/29/11
Posts: 787
Loc: derby england
The spindle is about an inch longer, however with a bit of messin you still might get the hub in.
_________________________
BSA CYCLONE
BSA METISSE
TRIUMPH TR6C
BSA BUSHMAN
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#463243 - 11/14/12 12:19 pm Re: conical hub front wheel on early forks [Re: run990]
Stuart Offline
BritBike Forum member

Registered: 06/12/02
Posts: 5897
Hi,

Originally Posted By: run990
conical hub
it seems to have been modified to having the backplate located via the slotted groove rather than by the usuall stud.

Has "the slotted groove" been machined into the backplate, or has it been formed by adding material on either side of the groove's position? If the latter, can you be sure the extra material won't come off one time you apply the brake?

Regards,

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#463268 - 11/14/12 3:21 pm Re: conical hub front wheel on early forks [Re: Stuart]
Jon W. Whitley Online   content


Registered: 08/05/01
Posts: 4743
Loc: Vermont
Scary, hopefully it has been machined.

Originally Posted By: Stuart

Has "the slotted groove" been machined into the backplate, or has it been formed by adding material on either side of the groove's position? If the latter, can you be sure the extra material won't come off one time you apply the brake?



I imagine aside from the brake plate issue, he will have to use the existing '65 axle as doesn't it have the threaded axle and right side fork leg? Then there is the bearing issue, etc.etc.
_________________________
Jon W.


1957 6T Thunderbird 650
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1955 Tiger 100 - Project
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#463276 - 11/14/12 4:02 pm Re: conical hub front wheel on early forks [Re: Jon W. Whitley]
Stuart Offline
BritBike Forum member

Registered: 06/12/02
Posts: 5897
Hi Jon,

Originally Posted By: Jon W. Whitley
he will have to use the existing '65 axle as doesn't it have the threaded axle and right side fork leg?

According to this recent thread, some '65 BSA models had the Triumph-type spindle, clamps and full-width drum; I'm guessing that's what the o.p.'s bike has if he's considering using a comical hub? The '65 brake and forks also appear to be detailed in the '64 twins parts book on Kim's CD.

Hth.

Regards,

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#463290 - 11/14/12 6:07 pm Re: conical hub front wheel on early forks [Re: Stuart]
run990 Offline
BritBike Forum member

Registered: 10/19/12
Posts: 291
Loc: lancashire united kingdom
yes my bike has the forks with detachable caps not the older push thru type spindle ,the slot looks to be machined into a piece of alloy welded to the backplate it also passes over the bolt that is normally used.there looks to be some wear in the slot so brake has worked in the past for someone.my forks are like later a10 type forks with a full width hub.the 1 inch width diffrence seems to ring a bell from fitting a wheeel to a bike 20 years ago. thanks for the input ,i think i will try to improve the function of the current brake by increasing the leverage.its been ok since 1965 so i will just have to improve my grip ha ha

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