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congratulations Rami, I wonder for a long time which one of the vendors on this forum is going to start manufacturing. It seems that painting is the most technically challenging step, are you going to do all the painting in house from now on?

on hills, the TS does not have the grunt of the Big Bear. The motor on the TS is a 120mm unit, the BPM on the Big Bear 180mm. Also, the controller on the TS gives 14A max, the Big Bear 20A. The battery on the TS has 9AH, the Big Bear has 15AH. The difference is clear. If you have hills more...

the torque sensor's output is wired to the throttle input. For all purpose, it acts as a throttle, you operate it with your legs instead of your thumb and you can probably unplug the torque sensor and plug in a thumb throttle. If you don't want a torque sensor, don't buy the TS and then the...

I haven't ridden the CS2 - can't comment either. Generally speaking, the weight of the bike depends on the weight of motor, battery, gearset and accessories. both the Burisch and the CS2 are similarly equiped, motor, battery, suspension fork, gearing, brakes, propstand - so they should not...

I have not ridden the Burisch, so I can't comment. The good point about the torque sensor is that the ride is much more akin to riding a normal bike, like having bionic legs, much more enjoyable and power delivery is both logical and natural.

a torque sensor is a replacement for the throttle, except that a torque sensor costs more than 10 times the price of a thumb throttle. There is only one other popular bike with a torque sensor in your price range, that's the Momentum.

tesla will sell two units, 7KWH and a 10KWH. I saw a short video clip on BBC breakfast this morning, some guy in London has it on evaluation. If they sell the 10KWH unit at $3000/£2,000 then it's very competitive, assuming that it has sufficiently long life, 10 years or more. Let's say you...

I am curious about one aspect. Wisper is a well known and well respected brand. Why change from Wisper Bikes to Amps? So who owns the brand Wisper now?

No. To be legal, you need a mean to measure the speed and tell the controller when that speed limit is reached. The speed limit is usually programmed via the LCD. Cheap bikes that do not have LCD may implement speed limit by counting the pulses that the controller sends to the wheel times the...

the controller controls the power to the motor, the LCD provides a mean to limit the speed of the bike. If you want to limit the power, these two components need to be brought up to date. Post a picture of the bike and motor, we'll try to help you.

the angle formed by the ring plane and the rear sprocket plane is proportional to the ring diameter and the sprocket diameter. Smaller ring gives you smaller angle. http://homebicyclemechanic.com/perfect-bicycle-chain-line/

The Sport TS is about the same weight as the Burisch, the Sport CD is about 1kg heavier than the other two.

I went out this morning for a short ride after breakfast, it was a bit too cold for my liking, came back for coffee and donut.

the bigger the chain ring, the bigger the problem keeping a perfect chain line. With the 750W, I think Bafang made an error fitting 48T, should have fitted the smaller 44T. The motor running too fast for me anyway.

don't underestimate how much energy is soaked up by a suspension fork. I remember trying the lightweight bike at Woosh a few months back, that bike has a rigid fork and fast rolling 700 x 25C narrow hard tyres. I didn't need assist to hit 25mph on the flat. It's on sale as second hand on the...

woosh will have a new plug and play kit in about 3 weeks.

it's one of their test bikes, you can ask using their web contact form. http://www.wooshbikes.co.uk/?contactus

I've got a picture somewhere. Will post when I find it. The bike is an ultralight frame 700C with normal bottle battery. The main thing is it has Magura HS11 or HS33, I can't remember, front and rear to save weight compared to hydraulic discs.

that's easy, use the throttle to pull bike, you and shopping up the stairs. woosh have a lovely lightweight test bike with Magura hydraulic brakes, 17kgs all in, in their workshop gathering dust. They may sell it to you cheap.

not without a big fat battery. I rode the Big Hit with 10AH and 16AH Panasonic battery.