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Front Derailer and tire clearance

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Front Derailer and tire clearance

Old 09-24-18, 07:44 AM
  #1  
ncscott
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Front Derailer and tire clearance

I posted this on the cyclocross forum and did not get any bites. Maybe the mechanic crowd would know better...
I have a Soma Double Cross and an older RX100 (90's road triple) front derailer. The derailer currently limits my choices of tires as the arm the cable attaches to swings into the middle of the frame and rubs tires with a 42ish width. I can fit wider tires without the derailer but would like to end up with the best of both worlds. I'll be doing CX without a front derailer but will put one back on for the warm weather riding.
I just looked at the choices of front derailers and did not realize the different options available (high clamp vs low clamp vs mid pull vs?). Could someone please direct me towards the type of front derailer I need to maximize the tire width I want. AKA, which front derailers to not pull towards the inside of the frame or do so with shorter arms.
Thanks,
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Old 09-24-18, 08:55 AM
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dsbrantjr
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I will be watching this thread with interest, as two of my bikes also have the FD as the limiting clearance for the rear tire and I have no solution currently. That parallelogram has to go someplace. Unfortunately our derailleur choices are further limited by features such as water bottle bosses or existing braze-ons.
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Old 09-24-18, 09:22 AM
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fietsbob 
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as the chainstays got shorter and the tires fatter. this issue arose..

Perhaps another justification of 11- 40t freewheels, trending these days..

Invest in Longer chainstay frame?





....
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Old 09-24-18, 10:13 AM
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Switch to an FD-R8000 which has increased tyre clearance
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Old 09-24-18, 12:16 PM
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The R8000 is only in double chain ring. Any ideas for a triple? There is a CX group, also for doubles.
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