Front brake rod dimensions 4160-40

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stevewhitt
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Front brake rod dimensions 4160-40

Post by stevewhitt »

Hi
I need to make a replacement brake rod (4160-40) and was wondering if anyone has the dimensions and thread spec please?

Cheers

Steve
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Roger Gwynn
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Re: Front brake rod dimensions 4160-40

Post by Roger Gwynn »

yes, it is 3/16 dia rod, the lower end has a 7/32 x 32 tpi thread that is 4-1/2" long, the upper end has a thread 3/16 x 32 tpi, 5/16 long, overall length is 21-1/2". The lower thread is flattened on opposite sides to a thickness of .137/.140. There is a drawing in the club archives for the 1927 version which is the same apart from length or you can buy one here, which is a bit easier. https://draganfly.co.uk/shop/66207/fron ... s/#4160-40
Roger Gwynn, Membership Secretary, curator of the Machine Register and the works drawings. Director of Draganfly Motorcycles, Craven Equipment and Supreme Motorcycles mostly retired.
stevewhitt
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Re: Front brake rod dimensions 4160-40

Post by stevewhitt »

Hi Roger

Thank you that, as you say might be easier to buy one!

Can you tell me what the mudguard bridge 5641-41 is used for please?

Cheers

Steve
Adz.F
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Re: Front brake rod dimensions 4160-40

Post by Adz.F »

Also worth a try ACME stainless they do the whole assembly which I purchased earlier in the year

Regards

Adam
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