Hi Vi [haɪ̯fɪ <http://de.wikipedia.org/wiki/Liste_der_IPA-Zeichen>] ;o), but friction isn't a conastant ratio, and the angle the steering bar has for a certain steering angle will change every time. maybe the steering bar is sometimes allready like full conrering, but you're still going straight. The clamped pullies prevent such situations as long as they don't brake. Steffen 2013/10/23 Vi Vuong <vi_vuong@xxxxxxxxx> > Hi Steffen, > > Friction steering should be similar to the Izzy's pulley design in a sense > that input angle is greater output angle due to slippage. However, the > "ratio" depends on the input force / slippage. It would be cool if speed > sensitive steering is achievable with python. Will report back after more > experimentation. Here is the handlebar set up I am using, > http://en.openbike.org/wiki/FP02 > > Vi >