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Handlebar bolts

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Handlebar bolts

Post  kerabo on Mon May 28, 2018 1:15 pm

Does anyone know the size and thread of the bolts that screw from underneath into the handlebars on the falcon 87 Please.
Thanks Ken
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kerabo

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Location : Falcon 87. Trials 93 Special. Powerbike 56. Falcon 81 Green Lane bitsa. Sunbeam S8. Honda Deuville.

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Bar threads

Post  piston 197 on Mon May 28, 2018 1:58 pm

Ken the originals were a fine thread ( cycle), but the replica ones produced by MCE, Pride and Clarke, etc in the day are a coarse thread ( probably whit), so just check which you have
JH
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piston 197
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Handlebars

Post  kerabo on Mon May 28, 2018 2:42 pm

Hi john
I am trying to reclaim a set of good bars with broken bolts in them. I have drilled undersize and can see an outline of the thread. It looks to coarse to be the very fine bscy but don't think it's whitworth so maybe the other bscy thread. What you think 1/2" or 9/16"?
Regards Ken
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kerabo

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Threads

Post  piston 197 on Mon May 28, 2018 2:47 pm

The original ones are definitely fine threaded and not as big as 9/16", i would think 1/2" is most likely.
The replica bars look much the same as the original FB/James ones, but have a much coarser thread, some of the replica ones when viewed from underneath have a number in raised profile between the bosses.
I will send you an Email pic of some original ones

JH
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piston 197
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Bars

Post  kerabo on Mon May 28, 2018 3:05 pm

I am wondering if someone attempted to put original bolts into replica bars . I can't see how anyone could sheer both bolts kevrk with the edge of the thread.
I had them geared but still it won't move so had to drill it.
Regards Ken
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kerabo

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Join date : 2008-02-11
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Dutch to me ( or Greek?)

Post  piston 197 on Mon May 28, 2018 3:07 pm

Kevrk to the edge ??
"had them geared ""??
must talk different in lincolnshire , ? not a scooby

JH
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piston 197
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Bars

Post  kerabo on Mon May 28, 2018 3:15 pm

piston 197 wrote:Kevrk to the edge ??
"had them geared ""??
must talk different in lincolnshire , ? not a scooby

Level Bloody predictive text.
Had them heated

JH
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kerabo

Posts : 2333
Join date : 2008-02-11
Age : 68
Location : Falcon 87. Trials 93 Special. Powerbike 56. Falcon 81 Green Lane bitsa. Sunbeam S8. Honda Deuville.

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Re: Handlebar bolts

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