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Supercross strong arm cranks


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12 replies to this topic

#1
broke L345

broke L345

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Hey guys, very new to mid school...I have a pair of strong arm cranks, where the fuck do I find the right set of bearings?? Cant find them in Australia and Bill can't help me. I need help building my first mid..sh school bike. thanks for any help.

 


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#2
gto455

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Msg Shane Jenkins on FB..he maybe able to help,hes in Melb.

#3
gto455

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Is it an odd spindle diameter?....if its 19mm you may just be able to use a profile bb?

#4
broke L345

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it is an odd diameter


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#5
broke L345

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do you know how to get in contact with Shane?


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#6
gto455

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Hes on FB..I sèe him a bit and im happy to ask for you,im sure if you contact him direct hed be happy to help..hes a great guy.

#7
TrulyOdd

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do you have a pic of what it looks like?



#8
steve bourke

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what diameter are they?

i have a nos crupi 20mm b/b that needs a home



#9
broke L345

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Sorry for not responding Patrick

 

They are 25mm, I have found the bearings, now I believe I need to find Redline Techmatic BB cups to suit the outer diameter. I guess I need a new search.

 

The outer diameter of the bearings is 47mm


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#10
broke L345

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IMG_3242.JPG


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#11
gto455

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Cant you use proflie cups?..much easier to find era correct ones..im assuming they used the same o/d bearings?

#12
broke L345

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No the Supercross bearings are bigger :-I


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#13
supercross

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Hey Broke L345,

 

I was going thru the storage today and found a bin of some of the old Strong Arm Crank Cups and some bearings, They are NOS from 96' or so, so about 21 years old.

 

E-mail me if you need them and we can work something out.

 

And it is a 25.4mm 1" spindle on our old Strong Arms, it is part of what made them so stiff and allowed us to run Aluminum Spindles back in the 90's.

 

Hope you all have a great day!

 

Bill

 






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