Raleigh Sports / Sturmey Archer front hub threading
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Raleigh Sports / Sturmey Archer front hub threading
I need to re tap the threads on the front axle of my 1974 Raleigh Sport. Can anyone tell me the correct threading / size of tap that I need to use.
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Sharp looking bike JL. Ex-Hamilton neighbor here.
Are the threads stripped away? If so, no re-threading attempt will replace lost metal. It's new axle time or possibly use washers to regain a better thread position on the existing axle. Will a new un-worn nut help save the day, or is it still serviceable (the nut that is)?
Are the threads stripped away? If so, no re-threading attempt will replace lost metal. It's new axle time or possibly use washers to regain a better thread position on the existing axle. Will a new un-worn nut help save the day, or is it still serviceable (the nut that is)?
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26tpi raleigh proprietary... good luck on finding a tap. Usually the nuts will strip first. If you have to re-thread the closest is an M-5 but don't quote me on that.
Aaron
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Webshots is bailing out, if you find any of my posts with corrupt picture files and want to see them corrected please let me know. :(
ISO: A late 1980's Giant Iguana MTB frameset (or complete bike) 23" Red with yellow graphics.
"Cycling should be a way of life, not a hobby.
RIDE, YOU FOOL, RIDE!"_Nicodemus
"Steel: nearly a thousand years of metallurgical development
Aluminum: barely a hundred
Which one would you rather have under your butt at 30mph?"_krazygluon
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Maxturbo,
are you still in the area?
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Aaron, are you sure about that? I know it's 5/16" axle and probably 26tpi, but I don't think it's Raleigh proprietary. Front axle nuts on English bikes seem to me to be interchangeable, Raleigh and others. If so, then I think there are a lot of options on ebay.
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Probably don't want to learn from my example, but I've had good luck simply replacing the axle and cones frankenstein style from my parts bin, I can't recall if I had to change bearing sizes though... this was a while back. I do know though I had to do some fine work on the fork dropouts to allow for the new axle size though.. which is why I can't reccommend this procedure.
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The threads are Whitworth and you would use a die v.s. a tap for re threading an axel. They are not cheap but dies are available here: British Tools & Fasteners - BSW DIES
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Maxturbo,
are you still in the area?
are you still in the area?
Fried Clams baby!
Last edited by Maxturbo; 04-01-14 at 07:41 AM.
#9
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god that looks good, but I can't do it anymore, I am 55 and gotta keep the weight down.
#10
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The threads are Whitworth and you would use a die v.s. a tap for re threading an axel. They are not cheap but dies are available here: British Tools & Fasteners - BSW DIES
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There are some Phillips front axles on eBay right now that should fit, though you might have to use them with your existing cones.
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Aaron
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Webshots is bailing out, if you find any of my posts with corrupt picture files and want to see them corrected please let me know. :(
ISO: A late 1980's Giant Iguana MTB frameset (or complete bike) 23" Red with yellow graphics.
"Cycling should be a way of life, not a hobby.
RIDE, YOU FOOL, RIDE!"_Nicodemus
"Steel: nearly a thousand years of metallurgical development
Aluminum: barely a hundred
Which one would you rather have under your butt at 30mph?"_krazygluon
Webshots is bailing out, if you find any of my posts with corrupt picture files and want to see them corrected please let me know. :(
ISO: A late 1980's Giant Iguana MTB frameset (or complete bike) 23" Red with yellow graphics.
"Cycling should be a way of life, not a hobby.
RIDE, YOU FOOL, RIDE!"_Nicodemus
"Steel: nearly a thousand years of metallurgical development
Aluminum: barely a hundred
Which one would you rather have under your butt at 30mph?"_krazygluon
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