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Suntour Cyclone Crank Update



 
 
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  #1  
Old July 2nd 19, 01:30 PM posted to rec.bicycles.tech,[email protected]
AMuzi
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Posts: 10,777
Default Suntour Cyclone Crank Update

Archive search report for Suntour Cyclone BB-400:

I was mistaken. The Cyclone series take small section (JIS)
113mm symmetric spindle. So yes you can use a modern
cartridge unit.
--
Andrew Muzi
www.yellowjersey.org/
Open every day since 1 April, 1971

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  #2  
Old July 2nd 19, 01:38 PM posted to rec.bicycles.tech
Sir Ridesalot
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Posts: 4,527
Default Suntour Cyclone Crank Update

On Tuesday, July 2, 2019 at 8:30:12 AM UTC-4, AMuzi wrote:
Archive search report for Suntour Cyclone BB-400:

I was mistaken. The Cyclone series take small section (JIS)
113mm symmetric spindle. So yes you can use a modern
cartridge unit.
--
Andrew Muzi
www.yellowjersey.org/
Open every day since 1 April, 1971


Thank you very much Andrew. Your informative answers to many queries here on this newsgroup are much appreciated.

Cheers
  #3  
Old July 2nd 19, 06:18 PM posted to rec.bicycles.tech
Chalo
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Posts: 5,042
Default Suntour Cyclone Crank Update

The only Japanese square taper cranks I have come across that used ISO tapers have been branded Sugino. (I'm aware that Suntour cranks were at least sometimes manufactured by Sugino. But I don't recall ever having encountered ISO taper Suntour cranks.)

Sugino were ahead of their time in the proliferating-standards game when they introduced an incompatible proprietary square taper for their "Maxy" cranks.
  #4  
Old July 2nd 19, 08:09 PM posted to rec.bicycles.tech
Sir Ridesalot
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Posts: 4,527
Default Suntour Cyclone Crank Update

On Tuesday, July 2, 2019 at 1:18:56 PM UTC-4, Chalo wrote:
The only Japanese square taper cranks I have come across that used ISO tapers have been branded Sugino. (I'm aware that Suntour cranks were at least sometimes manufactured by Sugino. But I don't recall ever having encountered ISO taper Suntour cranks.)

Sugino were ahead of their time in the proliferating-standards game when they introduced an incompatible proprietary square taper for their "Maxy" cranks.


I don't know which one this Suntour Cyclone crank has but when I slid the right hand crank onto a Shimano BB-UN51 cartridge bottom bracket there is about 1/4" left on the spindle flat and 1/2" between the crank and the bottom bracket cup. That is before tightening the crank fixing bolt.

Cheers
  #5  
Old July 2nd 19, 08:41 PM posted to rec.bicycles.tech
AMuzi
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Posts: 10,777
Default Suntour Cyclone Crank Update

On 7/2/2019 12:18 PM, Chalo wrote:
The only Japanese square taper cranks I have come across that used ISO tapers have been branded Sugino. (I'm aware that Suntour cranks were at least sometimes manufactured by Sugino. But I don't recall ever having encountered ISO taper Suntour cranks.)

Sugino were ahead of their time in the proliferating-standards game when they introduced an incompatible proprietary square taper for their "Maxy" cranks.


Superbe series. BB swaps with Campagnolo 1046, 1046a just
like Shimano BB-7400.

--
Andrew Muzi
www.yellowjersey.org/
Open every day since 1 April, 1971


 




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