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Home   Blog   Tension Made Easy

Tension Made Easy

May 04, 2013 2 Comments

I'm so glad we've sold over 100 tensiometers in the year since it was introduced. Only two had mechanical issues and most users are very pleased. It's also satisfying to know quite a few bought in addition to their DT tools.

DT is a particularly accurate and nice unit. Why buy a Wheel Fanatyk as well? A bunch of reasons. It's a more clever way to grasp a spoke, where the tool doesn't notice the spoke's thickness. The gauge is also mounted in the center of a triangular plate that offers protection. Other gauges are not to be dropped!

 

DT - don't drop it!

 

 

Gauge protected.

 

But the most compelling reason is accuracy. DT is excellent at high tensions, even up to 150kgf; but at the expense of accuracy at low tensions. The Wheel Fanatyk is not as adept over 120kgf (works but less well) but it reads low tensions precisely. This matters if you build 11 speed Shimano or Campag wheels with thin, aero spokes. The left sides of those wheels are at such low tension that DT can't read them. So, if you own one, you also deserve a Wheel Fanatyk if only for the reason of low tension.

There's still a good argument for a Park or Wheelsmith tensiometer (remember those?), because they're cheap, numerous, and rugged. Field mechanics, in particular, try and keep their gear light and minimal. A simple Park TM-1 may lack some accuracy but easily survives an unpadded trip in the box of wrenches. Another reason to own multiple tools is calibration. Test them against each other. Learn what you're reading and to appreciate each for its strength.

We keep a calibration fixture to support Wheel Fanatyk Tensiometers. It's built around a Dillon Force Gauge. Don't try and use one that has not been recently calibrated. Today, there are digital versions if you are inclined. Think about sending your tool to us for calibration or, better yet, make your own. You can just hang 100kg from a single spoke beneath a tree. It doesn't have to be complicated, spoke don't lie.

 

Remember FSA tension gauges?

 

A really nice development is the work of Ryan Kereliuk in Calgary. He's a veteran wheel builder and talented IT guy. He offers a utility that works with our tension gauge to record and map tension. See his utility here at Spokeservice.ca. Your browser runs it. Check it on the site. Click "initialize" and view the sample chart with demo values. Now click "visualize" and see a radar map of the tensions.

 

Print your map for posterity.

 

You can download it from the first page as a web page. An html file "SpokeService Spoke tension.html" and one folder "SpokeService Spoke tension_files" will appear on your computer. Now you can run the utility without a web connection. Click the html file and your browser runs it independently.

What a super gift to the building community. I'm sure we'll be hearing more from SpokeService in the future.

Thanks, Ryan.



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2 Responses

pch_rouleur
pch_rouleur

November 02, 2021

For years I’ve been tuning by feel, tuning fork, and Park Tool gauges. I just tuned two sets of carbon wheels with your tensiometer. After tensioning the spokes to within .03mm variance and the radial and lateral run-out to within .2mm, they feel distinctly more precise and responsive than my previous method had ever yielded.

I tuned the front wheel on one set to about 5kgf under the mfg’s max spec, and the other front to about 5kgf above mfg’s minimum spec(to see which I liked better). At 150lbs on a good day, I found I preferred the minimum spec. The wheels were much more lively and I felt that I could pre-load them into corners and had greater control over turning radius. Conversely, at close to max spec, the front wheel felt “dead” and wanted to understeer. On the rear wheels the variance was narrower so I parked it right in the middle of their specs.

This tool has opened up a whole new world of wheel-related cycling performance for me. Also, I can see where having the “zero button” easily accessed really make the process much less cumbersome. Chapeau!

KAVITATOR
KAVITATOR

November 02, 2021

I just need that convedrsion table! Thanks. And Tensionmeter is just perfect – pure joy to work with

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