Surly aluminum outer chainrings for customizing a Mr. Whirly Offset Double (MWOD) crankset.
- Outer chainrings bolt directly to MWOD inner rings with 4 chainring bolts
- Inner BCD (for mounting to granny ring) is proprietary; outer BCD (for bashguard) is 104mm
- Converts the Mr. Whirly crankset into an offset mountain double crank which allows for extra wide rear tire and rim combinations while avoiding chain-on-tire rub, e.g., 4.7" tires on 82mm or 100mm rims
- Brand: Surly
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