Hi All Yes, I cannot wait to start working on my bent. I've been drooling over having one for ages, but I have been very busy over the past 6 months. I've been preparing for a mountain bike race called the Sani2c here in South Africa - a 3 day stage race over 250km through the most beautiful scenery one can imagine. And riding so much on my mountain bike costs a lot since components wear out, especially in the mud. My goal after the race is to scale down a lot on mountain biking and rather spend that money on building my bent. I will still commute with my mountain bike as I currently do. My wife is eyeing my mountain bike so I guess it will no longer be mine once I have the bent completed. Seeing this rear-steering, front-wheel drive recumbent changed my plans a bit. I think I will try to build one too. I like things that are different. A friend once said: "Some people are wise, others are otherwise." I like otherwise! Anyhow Dennis, congratulations on such an achievement. I would have loved to be the one to have come up with such a great implementation of an * otherwise* idea. I gave up on the idea of rear-steering but this has given me new hope. Regards Gideon 2009/2/5 David Mullens <davemullens@xxxxxxx> > Hi 25hz; > > I wrote to Dennis myself - > > > Hi Dennis; > > > > Knowledge of your rear-steering, front-wheel drive recumbent has lit up > > the python crowd. I can see that some of the python crowd will be > > investigating the possibilities of rear-steer, which has not really > > worked almost every time it has been used. > > > > I would love to have a python but I really do not have the collection of > > tools, time and money that is required, or the fabrication skills needed > > either. I have to make do with commercially made recumbents, which > > isn't a bad thing. > > > > DAve > > Dennis replied - > > There are a lot of great factory made recumbents. The Volae highracers are > one of my favorites. I also like the challenge Fujin SL II lowracer. My > rear wheel steering bike is very ride-able and fun but cost me a fortune to > build. There is a learning curve to riding such a bike. After time it seems > as natural as any bike but in the beginning it did feel very strange. I was > able to race my daughter down the street on it the first day I rode it but > that's not saying too much. Now I can ride it with all my road bike friends > and stay with them no problem. If I had read all the problems in building a > rear steering bicycle before I started I would probably would never have > made the attempt. I am glad I did. One of my favorite saying is "The > person who says it cannot be done is going to be run down by the guy doing > it". > > Therefore we know that he spent a lot of time and money making the > rear-steering bent. It seems to work well, and that it works at all is > amazing. A nearby bike store has a bent rear-stearing trike hanging from > the ceiling, owned by one of the employees, and it is really complicated. > Dave > > ------------------------------------------------------------------------ > > that's awesome! Very smooth looking. I can't tell from the video, but is > it a true rear wheel steer? Is his seat actually sitting on the front part > and there is nothing aft of the pivot but the rear wheel?? If so, it's an > amazing accomlpishment. > > > >> The video was hard to see, but I wonder how much issue he has with pedal >> steer? >> Would it be reduced because he is sitting on the same rigid section the BB >> is attached to, or would he be sort of rotating around the contact patch of >> the front wheel and still maybe getting a little pedal steer that needs to >> be countered with his arms as the pivot tries to move left and right behind >> him? >> >> Man, I have immediate ideas about dropping the seat down lower and making >> a lowracer with dual 700's. One of the bonusesof having a 36" inseam :) >> >> >> 3. Dennis Renner from USA has built a FWD-RWS recumbent which seems to >>>>> work pretty well: >>>>> >>>>> > http://de.youtube.com/watch?v=KMA7CTfbpwo >>>> Waw, that is really amazing! I always thought a FWD/RWS was impossible >>>> to ride. Would like to find out more! >>>> >>>> Dirk >>>> ============================================================ >>>> >>> >>> Hej Dirk! >>> >>> I thought just the same. I contacted Dennis, to ask him a few things. He >>> answers very promptly. Here's a copy of what he said: >>> >>> 1) >>> Thanks for the compliments. >>> >>> My design is quite complicated to build. It took me a year and 5 months >>> of my spare time to build it the first time. The jig I built took a month >>> and a half. The wheel base is 45 inches', and the steering head tube angle >>> is 71 degrees. The steering system on my bike is a split handle bar design. >>> each side moves only backwards and forwards like joy sticks. A control rod >>> system is designed so that the brain still thinks it is turning the front >>> wheel like a normal bike. This why it is easy to ride. I have not taken the >>> time to draft up plans of my design as of yet. I built it from ruff drafts. >>> I am working on a lowracer design using this configuration now that I have >>> the handling bugs worked out. Perhaps in the future plans will be >>> available. I will try to post some more picture of it in the near future. >>> Thanks again for your interest. >>> >>> Dennis Renner >>> >>> My reply: >>> >>> Thanks for the quick response, Dennis. I can see from your videos and >>>> you jig-work that you're a much more meticulous engineer than me. One >>>> thing that would be a really useful study image would be a side view >>>> of the whole bike, with a foot-rule laid between the wheels to get an >>>> idea of sizes. The wheel base and head angle are crucial bits of info >>>> too. Thanks for that. I already think that I'm going to have to >>>> follow the trail you've unexpectedly opened up with this excellent >>>> bike and see if I can build a FWD-RWS. Really exciting breakthrough. >>>> Respect. Thanks! RhG >>>> >>> >>> Dennis's second reply: >>> >>> I will do. Give me a day or two as it is raining now. Sincerely Dennis >>> Renner >>> >>> Hwyl fawr, Rhisiart G. >>> >> >> ============================================================ >> >> This is the Python Mailinglist >> >> //www.freelists.org/list/python >> >> Listmaster: Jürgen Mages jmages@xxxxxx >> >> To unsubscribe send an empty mail to python-request@xxxxxxxxxxxxx >> with 'unsubscribe' in the subject field. >> >> ============================================================ >> ------------------------------------------------------------------------ >> >> >> No virus found in this incoming message. >> Checked by AVG - http://www.avg.com Version: 8.0.233 / Virus Database: >> 270.10.17/1933 - Release Date: 2/3/2009 5:48 PM >> >> >> > > ============================================================ > > This is the Python Mailinglist > > //www.freelists.org/list/python > > Listmaster: Jürgen Mages jmages@xxxxxx > > To unsubscribe send an empty mail to python-request@xxxxxxxxxxxxx > with 'unsubscribe' in the subject field. > > ============================================================ > >