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Surly Lou rubbing against front derailleur

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Surly Lou rubbing against front derailleur

Old 06-24-19, 10:08 AM
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hawksfan90
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Surly Lou rubbing against front derailleur

I have a 2015 Specialized Fatboy and I just changed out the original Specialized Ground Control (26 x 4.6) for the Surly Lou/Bud at 26 x 4.8. The tires clear fine width wise, but the rear tire (Lou) is rubbing slightly against the front derailleur. Short of changing out a brand new tire, any suggestions?

Thanks!
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Old 06-24-19, 01:39 PM
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rangie
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Time to go 1x.

The Lou is a big tire. Not many bikes are going to handle a tire that size and a front mech.

Early fatboys were 177mm rear?

Last edited by rangie; 06-24-19 at 01:51 PM.
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Old 06-24-19, 10:12 PM
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MarcusT
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I find it strange that the tire rubs against the derailleur and not the chain stay.
Is it possible your BB axle is too short or reversed?
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Old 06-25-19, 08:50 AM
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Originally Posted by MarcusT View Post
I find it strange that the tire rubs against the derailleur and not the chain stay.
Is it possible your BB axle is too short or reversed?
Just looked at a pic and it seems very possible as the cage sits fairly far back to accommodate the small rings
As @rangie noted, 1x is your easiest option short of going to narrower rubber. The Lou/Buds are one of the few true to size tires depending on rims my even exceed the claims
If don't know already, you will likely need a clutch rear derailleur and a narrow wide chain ring to limit dropped chains
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Old 07-08-19, 12:37 PM
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What's a front derailleur?
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