Search results

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    Giant, any info about them?

    yes, they do 700C x 38: http://www.halfords.com/webapp/wcs/stores/servlet/product_storeId_10001_catalogId_10151_productId_569615_langId_-1_categoryId_242553 No, you can't add a throttle to a Bosch bike.
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    Giant, any info about them?

    A lot of members have MP+ (me too): http://www.halfords.com/webapp/wcs/stores/servlet/product_storeId_10001_catalogId_10151_productId_569675_langId_-1_categoryId_242553
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    Giant, any info about them?

    I always suspect that hub motors make you fat, that why I stick with my crank drive and don't have a throttle on my bike.
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    Giant, any info about them?

    http://ebike.ca go to tools, ebike simulator, select the motor, click simulate. This tool does not work with crank drive, for crank drives, there is a chart on the Woosh website http://www.wooshbikes.co.uk/?motorcharts The best known motor is the Ezee. Maximum torque is about 50-80NM - at the...
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    Giant, any info about them?

    yes, you are correct on the torque. The torque at the rear wheel of crank drives equals motor torque multiplied by the ratio front angular velocity / rear angular velocity, it varies with the gear you selected and I believe that Bosch bikes feel torquier than last year models, perhaps the small...
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    Giant, any info about them?

    The Bosch motor this year has 60NM, 10 more than last year, so this year motor feels more powerful than last year. However, because of gearing, the acceleration depends on which gear you are in. If you select the right gear for the local gradient, the bike feels great, better than ordinary hub...
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    big bear?

    it is a really good bike and now, there is also a Big Bear low step:
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    Why so few Ebikes

    the £549 Elise has 36V battery but only 6.6AH. 26" bikes should have a minimum of 10AH because the battery limits the motor's hill climbing performance. For first bikes, the £649 E- Voyager and the £625 Woosh Santana have 10AH battery and better motor.
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    New battery tech actually going into production !

    Kaname Takeya, the technical director, co-owns a patent on flourinated carbon (he refers to it as carbon complex, but it's nothing new) - the technology of making Lithium battery with CFx is not new either. http://www.sciencedirect.com/science/article/pii/S1388248107001671 It's been dubbed...
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    E-Mopeds, harshly judged

    If it fits your requirements, that's all that matters. North Hill Road, steepest bit is only 8.7% gradient, parallel to it, Balkerne Hill, slightly steeper. East Hill Road, again, less than 10% gradient (8.4% at steepest bit) and none of these hills is long enough to test anything (20-25m...
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    Metro A2B rear battery

    looks like an easy job for cwah and his spot welder.
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    Getting an electric road bike

    you can overvolt the controller, they've tried it at 48V, 24 mph on 26" wheels so you should get 25mph easily on 700C but the controller got hot, motor stays barely warm. Climbing speed stays same, seems to be limited by controller. In my view, don't bother fitting PAS.
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    Getting an electric road bike

    your problem with the xiongda XD is the controller. The motor will run happily at 48V (I was told) but until you can get a 48V controller with 9 FET or 12 FET, you will be stuck with the 6 FET 36V. Also, I'd use the front motor XD on a 26" folding bike, that'll go in the lift and no need to...
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    Getting an electric road bike

    Woosh got it about 3 weeks ago, can't be newer than yours. They put it on an old Elios, it climbed Pier hill OK, about 13mph at the bottom dropping down to 9mph at the top on throttle. I left the setting on automatic all the time, noticed that it's not very smooth on PAS, the power seems to...
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    I'm struggling

    how about converting the old Scott with a BPM CST or BBS02 kit?
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    Best electric bikes under 2000

    development in coffee machines has indeed reached maturation, only humans can improve the end result now. E-bikes still have a long way to go. Look at the difference between a 2013 (classic) Bosch drive and a 2014 Bosch. Up to last year, crank drive was the way to go. Nobody is sure this year...
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    vehicle charging

    a bit of a rip off. This one costs less than USD15. http://www.fhy-power.com/EN/Channels/Products/showDetail.asp?objID=2776
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    Looks like new battery technology

    the idea is interesting though. Reading between the lines, it's a kind of supercapacitor built with chemistry instead of thin film, not intercalation, not redox but something in between - may mimic the natural world. You remember how interesting the Krebs cycle is? the professor may have...
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    Looks like new battery technology

    that kind of statement makes me cringe. So they make AA size batteries for pound shops but give no gravimetric and volumetric energy density on this invention. Boiler room operation I reckon.
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    Getting an electric road bike

    perhaps d8veh has tried the xiongda XD at 48V but at 36V it can only reach 20mph, I tried one at Woosh last week.