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  1. JennyB

    The Charly Miller Challenge

    The Paris-Brest-Paris 1200k randonee is perhaps the oldest cycling event still running. It began in the 19th century as a no-holds-barred race, with star riders being paced by relays of tandems, and sometimes by motorcycles. In 1901, Charly Miller , riding solo and unsupported, finished fifth...
  2. JennyB

    Three wheel steering

    The latter. As to size, no more than 8' long by four wide, and capable of carrying anything a longtail cargobike can. I'm thinking that for really bulky loads and awkward spaces it could function as a powered handcart or trailer. Just something slightly more all-round useful than a scooter. I'm...
  3. JennyB

    Three wheel steering

    Thinking about the simplest, lightest vehicle that would be usable on any road, with a low frontal area and a bit of streamling for maximum range. Hand controls only. I was at first thinking of something like a racing sidecar combination, but that has a problem of asymmetry: even with a...
  4. JennyB

    BBS01 Intermittent error 7 (overvoltage but battery @41v)

    Yes, I misread the manual. There doesn't seem to be an easy cure, though. :? I should have said, the motor doesn't run at all when the error shows. It is intermittent and unpredictable. Originally it happens after riding some distance, but now it shows at startup. If it is a loose wire...
  5. JennyB

    BBS01 Intermittent error 7 (overvoltage but battery @41v)

    Possible cause and cure?
  6. JennyB

    40 kph, 385 kilometers per day on a solar charged ebike

    Impressive, but to put it in perspective - Kurt Searvogel: Over 200 miles a day average for a whole year. No solar. No batteries. :shock:
  7. JennyB

    Removing BSS01

    I have one of these that I now want to move to a different bike. It was a very tight fit originally, and is now pretty well stuck. Any ideas for getting it out without damaging either it or the aluminium frame?
  8. JennyB

    Materials for mid-frame enclosure?

    I have a shrink wrapped 18650 battery (36v 20ah) that I've be carrying in a saddlebag. Lately I'very experimented with a modified bottle cage mounting, which works well, but it could do with more protection for winter riding. Here's the idea: a couple of rigid side plates (ply?) bigger all...
  9. JennyB

    The Dynamics of "Aero"

    Could work, does work - where conditions allow. Cyclists have been using skate sails for over a century, probably. Round here there's too many hills and hedges, and that's the way I like it! :D
  10. JennyB

    The Dynamics of "Aero"

    I know Murvagh well; it's about twenty miles away. In, fact my brother might possibly be in there somewhere as he hires Blokarts (the mini landyachts). You can see why no one runs them on the road. They need far too much room!
  11. JennyB

    4500+ Miles US Ebike Tour - August 2014

    Voice of experience: there's no shame in deciding to give up - but do first take as long as you need to get fed and rested, and only then consider whether you can make it to the next stop. Otherwise you'll end up with a case of "coulda-shoulda."
  12. JennyB

    1200 km, 14 km of climbing in 90 hours - AM I MAD?

    Memories, memories! Some scenes from a coming DVD of the ride, mainly from the first day. 8) http://vimeo.com/99334781
  13. JennyB

    Sinclair C5 teardown on EEVBLOG ;)

    I tried pedalling one once, a long time ago. No gears, short, flexy crank and a LOT of hard work. The motor could apparently get you up to 15 mph if there isn't a hill in the way. :roll: But before you laugh too hard, some folk modify them for drag racing and get up to 150 mph and 0-60 in...
  14. JennyB

    New Bafang Crank-Drives

    It's worthwhile being patient with this. Mine didn't go in easily and now I'm wondering how I'll ever remove it again non-destructively. :?
  15. JennyB

    Long Distance Ebike Design

    Yes, I think what I have got now is a good fit for an upright bike. With a 36v 20amp battery I can now go for any 100 mile road ride I would actually want to ride and not worry about recharging, and all with less than 8 kg more weight than a bare bike. With a fast charger I can recharge whenever...
  16. JennyB

    1200 km, 14 km of climbing in 90 hours - AM I MAD?

    Well, the Roche-Elliott-Kelly 400k ride at the end of May did not go well. I'd reckoned I might be able to complete it in a bit over 24 hours, and, if so, it might be possible to contemplate the 1200k ride without assistance. I knew I was slow on the hills, but I managed the climb up Glenmalure...
  17. JennyB

    Calculating Mid-Drive drive train ratio + nuvinci. How?

    Gear inches may be an old-fashioned way to describe gearing, but it works neatly with ebikes. The important number is 336: if a hub motor has enough power to run at 336 rpm the bike will go one mph faster for each inch increase in driven wheel diameter. A 20" wheel will get you 20 mph, and a...
  18. JennyB

    Riding long and lean

    The battery is from Schwibsi of this forum, 20ah of Sanyo V3 - half the size and weight and twice the capacity of the first lithium battery I had. I'm charging with a couple of 6 amp Cellman chargers in parallel. Together they fit neatly in the bottom of my Carradice saddlebag. In total, this...
  19. JennyB

    Riding long and lean

    Since I started logging my rides at the start of the year I've ridden over 3,600km on two bikes, both sometimes assisted, sometimes bare: Trek FX7.1 (basic hybrid) Bare 596 km. Ave 18.6 km/h Assisted 497 km. Ave 21.9 km/h Boardman Hybrid Comp (entry level...
  20. JennyB

    1200 km, 14 km of climbing in 90 hours - AM I MAD?

    Only just over three weeks to go now, and it looks like I won't be riding the Mile Failte assisted unless I can find a suitable motor PDQ. :( Thing is, I want to ride the new bike because that's what I'm putting in the distance on, and I'd rather have a front hub: 1. So I don't do an...
  21. JennyB

    New job with a Tough commute.

    That's the spirit! All the best to you and Jason (nice new website BTW)! :D
  22. JennyB

    1200 km, 14 km of climbing in 90 hours - AM I MAD?

    That seems about right, but I don't think I'd want to sit that long on a bicycle saddle without pedalling. :P Then you have to account for hills. I've found I can get a close approximation of my unassisted riding time by using a base speed of 23km/h and adding a minute for every 20 metres...
  23. JennyB

    1200 km, 14 km of climbing in 90 hours - AM I MAD?

    Time for an update. I am definitely mad! :lol: I've lost a lot of weight - back under 90 kg for the first time in at least 5 years - got a lot fitter and a bit faster. Bought a decent bike at the end of March and have put well over 1000km on it, including a 200k and a 300k Audax. I'm still...
  24. JennyB

    How do I destructively remove a freewheel Finished

    When you get a remover tool that fits, clamp that It the vice and proceed as above.
  25. JennyB

    Programmable Controllers

    Reserved for summary
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