Thorn Cycles Forum

Community => Rohloff Internal Hub Gears => Topic started by: wheezy on November 06, 2012, 12:02:40 PM

Title: Friction facts
Post by: wheezy on November 06, 2012, 12:02:40 PM

A chap in the States has built a test rig for measuring drivetrain efficiency. Anyone care to donate a Speedhub, so we can find out how many extra watts we have to generate?

http://www.bikeradar.com/news/article/friction-facts-measuring-drivetrain-efficiency-35694/

Title: Re: Friction facts
Post by: Danneaux on November 06, 2012, 04:28:04 PM

Wheezy!

This is a wonderful find (from my perspective, anyway) and has already resulted in an extended visit to his site for a look-see. His initial and ongoing investment is staggering.  I've surely enjoyed seeing photos of his test rig as well.

Quote

Anyone care to donate a Speedhub, so we can find out how many extra watts we have to generate?

A shortcut to hub break-in as the reward?  ;)

Now, if only he had some data on the working lifespan of products...I'm guessing that will come eventually as he's all set for it.

Fun stuff and nicely found!

Best,

Dan.