Join Date: Aug 2004
Location: Fair Oaks,CA
Bikes: Kestrel RT1000 & Calfee Tandem
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Campi first position gear thickness question
I purchased a Campi 10 speed record cassette (13/29) when I built up our tandem. (The front gears are 28/39/53.) I replaced the 13 with a 12 tooth, but we are spinning it out on the downhills. I want to replace the 12 tooth with a 11 tooth first position gear. However, there is a gear thickness problem. The 12 and 13 tooth gears are 4.95mm thick and the 11 tooth is 5.29mm. Anybody have any idea why the difference in thickness and is there a workaround? I guess I can always mill the 11 tooth to 4.95mm.