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True much gets lost in the enormity of CES And I accept your point on smart phone batteries Don't really accept point on niche market as not all have smartphones. In uk we hit the 50% mark in may 2012 ie half of all mobile phone users have a smart one. That figure only going one direction...

@mike interested I why you believe the battery is an issue ? An AAA battery plus gizmo fit in same space as the AA battery would. And I would take that gentlemans bet as well - once these kick starters hit the tech press , as this has, they tend to accelerate. Also usually get a flurry at the...

Thiseems like an excellent idea for gadget geek (like myself) Tethercell makes any AA battery-powered device controllable via smartphone I can think of a couple of ebike uses immediately for those with IOS or Andoid powered smartphones 1)For you lights in winter. I have four lights so...

The efficiency arguement against hubs is much discussed across other MTB forums. I'm not sure I quite agree with flecc here (*gulp* did i just say that ! :) in lab conditions then yes, old school mech is more efficient. In the real world where mud, grit, water and other crud gets into the...

I have also tried to use the pound shop version - failed utterly and just got gunk everywhere Think it may have been a user issue mind !

Ahh thank you , not sure what the actual calculations were behind the chart. Hmm, that is a bit quick then although I'm only 73kg I'll have a think, might get it anyway as its only 119 USD and try an build a light fast bike that is hopeless at hills !

Oh an yes, in no way am I proposing this as a cost efficient idea ! It isn't - it would be bonkers for sure !

Sorry, I was not very clear there. It would add around 2.5 kg as you say which is not a huge amount IMHO but the total weight depends on the bike you start with. Some of the haibikes are just over 20kg for example Agreed re the tongxin power - but that's the idea here - dual drive. One for...

Hi again About to order my battery and notice that I could get a 323rpm 350w front motor at the same time I think this would give me around 23mph real world top speed in a 700c rim (based on a chart i found at ES) Any glaring errors in my thinking please ?! Many thanks Kirstin

doesnt need to add that much wieght For example, a great addition in mybook would be fastwind tongxin front motor to a crank drive bike. Assuming they use the same battery (i.e both 36v) you use the crank for hills and switch over to the tongxin on the flats for high speed (way over the...

Can tell you the old version used nexus 7 hub but was only 24v

and at 300 quid (or even £200 when in sales) this is still very very pricey so I'd hope so ! Out of interest in what way is the neoshell better than goretex please ? I've never had a goretex leak as yet ? Or is it more about breathability ? To haul the thread to ebikes - I really only...

For anyone who cycles in all weather then decent waterproofs are essential probikekit are doing £160 Gore Path jackets at £88. An unheard of steal for an excellent peice of kit (just google for reviews)...

Thanks - this looks a excellent way to cheaply convert currency. But dont most pay via paypal when dealing with china ? its free for a buyer and also has buyer protections

Sold (to the bald as coot bloke faced with winter cycling 25m daily along the south coast)

Really useful stuff - thanks very much I thought it was possible to increase speed without upping voltage (appreciate you can a bit with a better battery - ta Jeremy ) but seems you cannot ( I had the mark 1 torq bikes in mind that I read about - believe thu did 21 on 36v -somehow ?) Lipo is...

V interesting post - I saw one but thought twice about purchase Not sure why now and, when I went back, all gone !

Hi all My commute will change from a very hilly 8 miles round trip to around 25 on flat although along coast often with strong headwinds I have 250w bafang , 14a controller, 9ah Panasonic celled bottle battery (all from 8fun uk in kit form) Very happy but the battery is very weak in that...

I ride every weekday whatever weather Personally I swear by Gore jackets. Utterly waterproof and wind proof. If very cold then I wear a fleece underneath. Plus gloves and one of those buff things which keeps neck /ears/face warm ( essentail baldy man item in my book!)

I keep hearing amazing thi gs about graphene and what it can do for batteries. All in the lab though - never in high st