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Wheel size doesn't much affect weight though. Katy is happy with the size of her fazua. She only needs a bigger battery.

:D :D if you don't pay income tax, are you still not nicking anything?

I don't disagree. The choice comes down to personal preference.

Likewise, you can go for a 48V crank drive kit if you need more power. The advantage of cranks versus hubs is cranks can take advantage of chainring to cassette gearing while hubs can't.

thank you. I thought he got the bikes mixed up.

You will go faster when assisted, you also need to allow for the power of the motor that may overrun a little time when you brake. The end result is V-brakes at the front is not good enough. They will wear quickly, not just the rubber but also the aluminium braking band on the rim. Best to have...

No, it does not mean that. You asked for EN15194 certificates, I was looking for them where I downloaded before. Manufacturers do not need to test each and everyone of their product. Certificates are only valid for 3 years but manufacturers don't need to get the same product re-certified after...

which green bike are you talking about?

it is possibly because of the comfort of bikes with big wheels. Suspension on a 20" bike will never be good enough for someone with back problems, worse on 16".

You are right! Bafang has changed their sitemap. Same with Tongsheng. The old EN15194 is now replaced with a new certificate, but not for their TSDZ2 like the old one was. TSDZ5 EN15194_Suzhou Tongsheng Electric Appliances Co., Ltd. Motor Meter Controller (tongsheng-e.com)

There are limits to what current technology can offer, even with a large budget. Katy needs a step-through frame, large wheels, large margin on range and a throttle in case she can't pedal normally, extra reliability because it will be her main transport. The Santana3 is really a big improvement...

I will upload their en15194 and ukca certificates here for you tomorrow when I get to the office.

Bafang has obtained EN15194 for their BBS01B kit. Your kit is supplied conform to EAPC rules and as long as you don't change the settings (other than wheel diameter to your correct wheel size), you have nothing to worry about.

The centre of gravity: I agree that hasn't changed. If that's a big issue, a front basket would balance the weight. The issue with the Crusa is it's an American sized bike with wide handlebars, 28" wheels with ballon tyres. It can feel unwieldly if you are less than 6ft tall. The Santana3 feels...

that's pretty average for a step through bike with 17AH or 20AH battery. The single tube step through frame is about 0.5kg heavier compared to the double tube Crusa frame, the high capacity battery is about 1kg heavier than the Crusa 13AH battery. You also have the NEX fork (2.7kgs) about 0.7kg...

Take a look at the Woosh Santana3 https://wooshbikes.co.uk/?santana3 The Santana3 is smaller than the Crusa, very comfortable, stiffer frame, better brakes, 30% more power, 30% more range, easy pedalling and also a little lighter. This is a bike that you can ride 40 miles without stopping if...

You need to work out if a child seat (or two child seats) is important to you. If you have a child seat, you should go for a step through frame.

To be sure, you need to ask your supplier for A grade cells, they then ask their upstream supplier. The supply chain is usually organised that way. It is a chain of trust, long standing working relationships and ultimately backed by product liability insurance for the 10 years from the moment...

if you were talking about the Rambletta, it's 20kg heavy but not rear heavy, the battery and the motor are roughly equal in weight (2.7-2.8kgs) and placed equidistant from the bottom bracket, the centre of gravity is pretty ideally placed, near the bottom bracket. It's more like an emtb and very...

It's not practical to carry a spare battery. Charging at work remains the only viable option for this distance. Even then, I wouldn't contemplate doing 40 miles on a folding bike in a day. It wouldn't do my back any good. The Rambletta weighs 17.4kgs without battery, 20kgs with the 12AH battery.