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With over 4,000 km on my GSM (BBS01 clone) on hilly Basque Country roads here are my thoughts: To keep the chain line you could first of all try the sunrace 11-46 cassette with the stock 46 tooth chainwheel, most people change the stock chainring for a lighter one, my double weighs about the...

There is a reason for that, the motors are specially de-tuned so that the gearbox doesn't break.

You need to find a +17% gradient or two on your way to and from work... On my commute I have no choice, but I don't get too sweaty because of the +500 controller Watts and the very short distance (2.8km) I would sweat a lot more walking for the 28 minutes it would take me on foot. What you...

On a kit bike with a KT sine wave controller you adjust power by choosing the assist level. There is another setting for the ramping up of the power - normal, strong and soft start modes are available. You are thinking of a controller that would give more power the slower you pedal? And as your...

Walk assist on the trike is pretty useless but I use it regularly on my upright. People do tend to give strange looks to an old man effortlessly walking his loaded bike up a set of stairs (with a bike ramp on the side), the motor is dead silent in walk assist mode.

Front wheel or back wheel? Where did it break? Those are questions of interest, the answer to your question on tension is of course: "as tight as the other spokes" unless they are all loose...

Yikes! Did you see the steering rod clearance issue?

How many have 2 wheels? ;) I'm from NZ a long time ago. Back then the country roads (and even some main roads on the west coast of the South Island!) were gravel and cars were rear wheel drive so you learnt to drift early or you died young in a horrible crash. When I came to Europe I drove my...

https://solex.world/ the one you are thinking of had a rear hub motor (bafang) and a glove box where the motor used to be. You don't want to ride one of those (Vélosolex) pedaling, trust me! It was a low powered moped, the pedals were only there for starting from the lights and really steep...

https://www.sheldonbrown.com/rinard/aero/formulas.html On my way to work I peak at 42 km/h, I am not pedalling but concentrating on negotiating a -15% gradient with a corner at the bottom. I guess if I tucked in and lay down on the bars I could top 50 km/h but I'm scared my tie might get caught...

A front hub motor will work fine in the Netherlands, Belgium and a fair bit of Germany and northern France. When it isn't raining, or snowing... For the speed you want, a mid-drive motor is the way to go, if you want that kind of speed from a hub you need to muck about with overvolting, oil...

I think I might have some water issues in my controller too except I get error 00. Now you can look for that error in the docs but it doesn't seem to exist... 06 being "Motor or controller has short circuit Abnormality" I don't get nutty Watt numbers I get strange speed readings as in I am...

Hope it isn't like the bafang sellers, it took me days to find the G310.250... I agree I am one of many niche customers. I can get by with the stock standard motors used by the masses but I know motors more suited to my needs exist and I would like to be able to buy one. I don't have a solid...

You should try slicks :) I beat you, 67 km/h on my first pedelec. Haven't measured the speed of the trike yet but so close to the ground it feels even faster...

My question was a bit ambiguous :) How much do I need one? And/or how much does it cost? Lace me a 1.7 kg rear hub cassette motor into a Halo SAS 26" rim with black Sapim Strong spokes and red nipples and it would be pretty close to rear wheel heaven... Two problems when compared to the...

46:11 @ 90 rpm is 48 km/h with Big Bens, on a really steep downhill you would probably spin out at over 60 km/h. All numbers with a 26" wheel.

How old/strong are you? I'm pretty strong but I can't pull 48:11 anymore (young had a 52 tooth). At cadence, downhill, I can manage 48:15 or if it is really, really steep 48:13, my cadence drops to 60 or below if I try 48:11. Now if I add a hub motor to the mix I can pedal all day at 48:17 =...

How much?

bafang use 15% difference between loaded and unloaded speed for their motors.

Silly me here I was changing down a gear or two when I got to a hill... My "250W" hub will (well it used to when I was younger) climb 13.8% hills @ a steady 25 km/h. Plenty enough for me and very annoying for MAMILs. On 17% gradients it does slow to 18-19 km/h. The 250W mid motor is slower but...