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Join Date: Nov 2005
Location: NW Ohio
Posts: 3,439
Bikes: 1984 Miyata 310, 1986 Schwinn Sierra, 2011 Jamis Quest, 1980 Peugeot TH8 Tandem, 1992 Performance Parabola, 1987 Ross Mt. Hood, 1988 Schwinn LeTour, 1988 Trek 400T, 1981 Fuji S12-S LTD, 197? FW Evans
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It is also posible to change out the chainwheels. If you remove the large LEFT HAND thread lock nut from the left side of the crank, the crank can be removed, which you would need to do anyhow to repack the bearings. Once the crank is out, you can remove the RIGHT HAND thread nut that holds the chain wheel to the crank. As far as I know, all one piece cranks are the same dimensions, so you can install your choice of chain wheels. I did this on a three speed Huffy and installed the inner chainwheel from a 10 speed to get a lower gear range.