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Old 10-09-12, 01:58 AM
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Chris_W
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Join Date: May 2007
Location: Switzerland
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Bikes: road+, gravel, commuter/tourer, tandem, e-cargo, folder

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Unfortunately, the R603 cranks only come in 170 and 175 mm lengths.

The special design of all three chainrings on the R603 (and the new single-bike Ultegra and Dura Ace cranks) is the reason why I won't buy one of these cranksets - I like more choice in my gearing.

Fortunately, TA Specialites and Stronglight are both making some specially-shaped rings that match those on the Ultegra single-bike cranks, and so should also match the R603s. However, information and availability on these options is still quite lacking. Also, you can mount any regular 130 mm BCD outer ring on the R603s using standard bolts - it won't look quite right but it should work fine.
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