Bicycle Mechanics - Butted Spokes - which size to reference on TM-1 tension chart (2.0 or 1.7) ?

Bikeforums.net is a forum about nothing but bikes. Our community can help you find information about hard-to-find and localized information like bicycle tours, specialties like where in your area to have your recumbent bike serviced, or what are the best bicycle tires and seats for the activities you use your bike for.



PDA
somegeek
09-13-10, 08:59 AM
For a double butted spoke (2.0mm/1.7mm), which diameter do I use to reference the Park TM-1 chart to determine which deflection value I need to aim for?

Thanks,
somegeek

cycle_maven
09-13-10, 09:26 AM
The 1.7. But- make sure the tension meter is fully on the thinner portion of the spoke or it will read high.
BCRider
09-13-10, 11:03 AM
As was explained to me in a thread around here the spoke size is only a consideration due to the diameter of the spokes and how they fit between the three anvils of the meter. So that is why you need the whole meter to fit down on the butted area.

davidad
09-13-10, 03:38 PM
You always use the smaller diameter.
AEO
09-13-10, 05:53 PM
doesn't the spreadsheet card that comes with the TM-1 say to use the thinnest?