Surly steel inner chainrings for customizing a Mr. Whirly Offset Double (MWOD) crankset.
- MWOD chainrings convert your Mr. Whirly crankset into an offset mountain double crank, allowing you to run extra wide rear tire and rim combinations (4.7" tires on 100mm rims, for example, or 82mm rims on your Pugsley) while avoiding chain-on-tire rub
- Inner chainrings are unique due to a secondary bolt circle designed to bolt directly to an outer MWOD chainring
- This combo bolts directly to the 58mm BCD mounting holes on Mr. Whirly cranks
- WARNING Handling this product will expose you to chemicals, including lead, known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling. For further information go to www.P65Warnings.ca.gov.