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SOLD Rotor 50/34 4-Bolt Q-Rings Custom Machined for Pioneer PM
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SOLD



Rings were custom machined by Rotor in CO Springs to clear the PM sensor. I used in the #3 OCP position but I believe they machined enough that you can move to the #2 or #4 position as well. The small chainring was given 2 small drill holes to accept the small bolts that secure the Pioneer sensor to the crank. Less than 1K miles, as these were on my backup road bike for 1.5 years.






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Last edited by: refthimos: Mar 29, 17 10:39
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Re: Rotor 50/34 4-Bolt Q-Rings Custom Machined for Pioneer PM [refthimos] [ In reply to ]
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130bcd?
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Re: Rotor 50/34 4-Bolt Q-Rings Custom Machined for Pioneer PM [trifantasy] [ In reply to ]
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Shimano 4-bolt cranksets have only one BCD, 110mm. Even the larger chainrings like 53/39 or even 55/42 are 110. Better really not to even think about BCD when it comes to Shimano 4-arm cranksets. If you have 4-bolt cranks, they will work with 4-arm cranksets. Now of course if you are using non-Shimano rings (which are hollow and accept the chainring bolts without the need for a typical "female" bolt receptacle) with Shimano cranksets, you will need something like the Rotor bolt covers to provide that female bolt receptacle and match up flush with the Shimano crankset.

Amateur recreational hobbyist cyclist
https://www.strava.com/athletes/337152
https://vimeo.com/user11846099
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Re: Rotor 50/34 4-Bolt Q-Rings Custom Machined for Pioneer PM [refthimos] [ In reply to ]
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Will these work with a Quarq S975 as well?

Duathlete by choice?
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Re: Rotor 50/34 4-Bolt Q-Rings Custom Machined for Pioneer PM [blitzkrieg] [ In reply to ]
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Isn't the Quarq S975 a 5-arm crankset?

Amateur recreational hobbyist cyclist
https://www.strava.com/athletes/337152
https://vimeo.com/user11846099
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Re: Rotor 50/34 4-Bolt Q-Rings Custom Machined for Pioneer PM [refthimos] [ In reply to ]
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