Going from 14-tooth to 15-tooth on the countershaft wasn't enough after adding a BBK and race head. Now I'm adding this 25-tooth rear sprocket (ordered from Kitaco in Japan, took three weeks to ship) to see if I can balance the extra horsepower with less rpm for a better riding experience. "Cruising" along in traffic at 9,000rpm in top gear has some drawbacks because, well, ****.
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