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250w electric front wheel

  • 18-06-2011 10:53pm
    #1
    Daegerty
    Closed Accounts Posts: 1,864 ✭✭✭


    Thinking of getting one of these:

    http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=220798182476&ssPageName=STRK:MEWAX:IT

    are they any good? and would 250w be safe enough to put on an aluminium fork? I know the more powerful ones can taer the fork off if you give it full throttle so I don't want that happening.

    I have seen a more powerful one in real life but the guy had a steel frame bike and he'd welded a small piece on to hold the axle of the electric front wheel in place. Would end up using 2 or 4 9ah 12v batteries which weigh about 10kg. would I be better off assembling a nimh battery pack out of 10ah D cells?


Comments

  • #2
    xz
    Registered Users, Registered Users 2 Posts: 1,178 ✭✭✭xz


    for an output of 24 kmh, and all that extra weight, it's hardly worth the hassle,I know that its 24 kmh plus whatever effort you put in yourself. Personally I find it more satisfying putting power down onto the road with my OWN 2 legs,What's the point in cycling if you are going to let a motor do the hard work, you might as well buy a moped.


  • #3
    Canis Lupus
    Registered Users, Registered Users 2 Posts: 9,893 ✭✭✭Canis Lupus


    Electric powered bikes are for old people.


  • #4
    Lumen
    Registered Users, Registered Users 2 Posts: 31,221 ✭✭✭✭Lumen


    Canis Lupus wrote: »
    Electric powered bikes are for old people.

    Electric vehicles are for the physically impaired.

    There are lots of fit "old" people. For instance.


  • #5
    Canis Lupus
    Registered Users, Registered Users 2 Posts: 9,893 ✭✭✭Canis Lupus


    lol for the 'average' old person. Although saying that my mate has quite a few OAPs in his club and they whip along nicely :)


  • #6
    blorg
    Registered Users, Registered Users 2 Posts: 15,995 ✭✭✭✭blorg


    Jaysus lads, the wuss asked a technical question about a component, not an invitation to criticise his cycling ability. I'll remember to reply HTFU, if it's good enough for Kelly it's good enough for you next time someone posts a question about TT bikes.


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  • #7
    Tonyandthewhale
    Registered Users, Registered Users 2 Posts: 1,867 ✭✭✭Tonyandthewhale


    I didn't read the full text of the ad but I didn't see any warnings about what type of fork to use so I'm assuming that's not an issue (can't say for sure though). The bike in the picture only has a cheapo-dodgy suspension fork with the wobbly old-style headset so I'd say if that's alright then any structurally sound fork should be. Maybe find a bike shop that specialises in electric bikes and see if they have an opinion on it.

    As for it being any good, I can't say although 10kg of extra weight seems a lot of excess weight for a 24km boost, I hope the battery last because I wouldn't want to be pushing that bike without it.


  • #8
    Daegerty
    Closed Accounts Posts: 1,864 ✭✭✭Daegerty


    xz wrote: »
    for an output of 24 kmh, and all that extra weight, it's hardly worth the hassle,I know that its 24 kmh plus whatever effort you put in yourself. Personally I find it more satisfying putting power down onto the road with my OWN 2 legs,What's the point in cycling if you are going to let a motor do the hard work, you might as well buy a moped.

    I could get a more powerful one that will do more than 24km/h. I'm unlikely to get stopped for using a too powerful electric motor on a bike


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