I am looking for a replacement disc for my stumpjumper expert carbon 29er. It came with Formula R1 brakes (with Rx calipers) and 160 mm disc front and back. My frame is designed for 140mm disc in the rear and is using a spacer to use the 160mm. I would like to replace the rear with the smaller disc to save some weight plus it looks cooler (IMO). The 2012 formula discs are 2 piece only and cost about 100 usd "on sale" at chain reaction cycles. This seems like a ridiculous price and I want some recommendations for a better value.
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Thread: 140 mm disc replacement
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