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Corn on the cob

13 02 09 - 22:45 Yet another bargain from the 'last year's model' department, the Shimano 7800 cassette may have been slightly changed to make this year's 7900 version, but by this stage Shimano are really just looking for something to do on their cassettes to make people buy the new ones. At half price, I think the opportunity to change the cassette earlier in its wear life will comfortably outweigh any improvements Shimano may have wrought in the shifting performance of the latest iteration. Americans rather quaintly call straight-through blocks 'corn cobs', and this one is straight-through from 12 to 19 before the huge jumps to 21 and 23, so it actually contains the 13-18 six speed group of our old straight-through time-trialling blocks of old, adds some more gears at each end, and still weighs less.
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