Join Date: Apr 2005
Bikes: Kinesisbikes UK Racelight Tk
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Originally Posted by BikingGrad80
I finally decided to buy a tensiometer. I was surprised when it told me that I build my wheels too tight. It says my average is 120-137 kgf front and rear drive side. Should I be concerned? I know the recommended max tension is 100-110.
Bontrager Maverick to LX hubs
Open Pro Ultegra
Sun CR18 to old 105.
The 100-110 kgf seems way too low for me regarding 9-10 speed DS rear wheels. I never use less than 120 kgf on my rims (mostly Mavic CXP 33). Around 125-130 kgf are my target. A wheelset I build before I got my TM-1 was tensionend more than +140 kgf. The flange on my Ultegra hub broke after a year or so, but there were no problems with the rim even though it's official recommended tension is 100-110 kgf.
The hub had experienced one rim destroying crash which may have weakend it. I need the high tension because I am a heavy rider that sometimes carry a lot of heavy stuff in my panniers.
I don't think that the 100-110 kgf. number reflects any real world limit since e.g. all Mavic rims uses that number. It seems strange that so many different rims should have the same max limitation.
Resistance isn't a good measure of absolute tension since good lubrication may reduce resistance. I have temporarely "tacoed" a CXP 33 rim without trouble. (I estimated that this must be around 150 kgf).