Search results

I asked Xiongda. The system has two gear ratios, 4. something and 8. something. The controller is specially programmed to switch between the two ratios. You have to buy the whole kit from them, you can pay with paypal. Xiongda said the design is their own invention and of course patented but I...

the Sahara has 700C wheels (29"), too big for you. the Santana CD has 26" wheels.

IMO crank drives are particularly suitable for long commutes because you can easily derestrict them for higher speed on flat roads whereas hub motors are inherently limited by their RPM. Another point, I have to see a Chinese ebike with good enough quality drive and gear components for heavy...

18" frames are OK for 5ft 2 if you have a low profile seat post and saddle. If you are worried about the high cross bar, why not look at a low step? They are much more comfortable with their sit back position.

the few nasty hills you mentioned may be a problem for the Volt battery. The battery of the Pulse is 36V 12AH, you'll need to keep 20% reserve for optimal battery life, leaving you with 345WH assistance. Your commute is 26 miles. Allow 10WH per mile against air and rolling resistance, you are...

yes, pea. Kits are great for people who have the right tools. generally, the water bottle cage lugs in the donnor bike are not made to support a water bottle batter that weighs 3 kgs and the forks are not set up for a 4kg front wheel (in case you buy a front wheel kit). economically, if you have...

third party battery is possible if you are a good DIYer. The Wisper battery has the output connector at the middle of the base plate - so it won't fit a standard case like those made by Shan Shan. You will have to replace the base plate with a new one, which can of course be bought from the...

you definitely don't want the battery in the back (sirocco), it makes swinging your leg over the rear wheel to get on to the saddle much more difficult.

this one may suit you: http://wooshbikes.co.uk/electric-bikes/sport-ts/ £725 with torque sensor. If you don't like it, send it back within 2 weeks.

Beach, about your door latch. if the body and fastener are made out of aluminum alloy, the key could be simply a couple of magnets hidden somewhere. That'll last a few hundred years and requires zero maintenance. I haven't seen it sold anywhere though.

The patent is about a garden door latch. Beach, Apology about jumping the gun earlier. I enjoy reading your flowery posts!

..you get what you pay for. plus the 32% dealer margin if you buy from China or importers. Of course, you won't have the same level of service but that does not bother many buyers.

whoever peddles gravity technology (or nullpoint energy) is either a confidence trickster or does not understand physics. If you are to produce energy in our universe from NPE, you need to take it from another universe which is indeed possible if a) you can contain another universe inside ours...

jon, If you like the idea of a kit, I would recommend the 8-Fun BBS01. Get the 36V 20A if you can. I have the 15A but it's good enough for my need. It is not restricted, will climb 16% hills around Halifax with ease and blitz the 25 mile trip in about an hour and a half.

Artstu's derestricted KTM Macina Cross with Nexus 8 seems to be capable of doing this in 45 minutes.

Our infrastructure only favours recreational cycling, not going to work. For bikes to be an alternative to cars, we need large scale provision of secure bike routes in towns and cities. Our goverment won't do it. Few people would choose e-bike for sport, even if more do, the practice of...

22km @ 26.5km/h=49 minutes 48 seconds no pedalling The hill climb remains as it was (15 minutes 15 seconds) Total time 1 hour 5 minutes The flat portion can be done more quickly than that but Iif the motor cuts out, then you are effectively limited by legalisation.

The BPM case: flat section: 22km, maximum speed: 42.4km/h: 31 minutes 10 seconds, no pedalling. 3.5km 10% hill section: motor running at 700W + cyclist 132W = 832W, climb speed: 13.1km/h * 832/711=14.14km/h: 15 minutes 15 seconds Total in ideal condition: 46 minutes 25 seconds To get the best of...

For a quick estimate how much faster on e-bike, this is my calculation: distance: 15.9 miles (25.59km), elevation: 1165ft (355.1m), total energy required on a crank drive at optimal gear selection: 25.59*6.3 + 355.1*0.465=326.32WH These are WH at battery (burn) level, transfer yield at 0.8 is...

flecc is correct. The potential energy is proportional to weight, accecelation is inversely proportional to weight. E-kit weight has no effect on consumption on a round trip.