Search results

It's not that I don't understand Newton's third law I honestly don't understand why you are quoting it here its not applicable surely to how gearing works and the whole point of gearing to increase torque at the expense of speed or vice versa. I think I've seen mid-drive motors used in single...

It doesn't sound like the hall sensor has failed in the throttle if its still operating to a point although you have to move the control slightly differently to switch off. Maybe inside the magnetised bar has moved from where it should be so the readings are not correct. It may be an easy repair...

Most ebikes in the world have throttles its by far the most common control method and in China ebikes are dirt cheap averaging only around $200 to buy. I've watched couriers on youtube delivering for thousands of miles on throttle based ebikes and not once do I remember them reporting any issues...

I think you have misunderstood a lot there. A mid drive motor uses a very high rpm low torque motor through internal gears to generate a high torque at low speed. You can create more torque with the gearing and this is still true of the external gears in a bicycle drivetrain. The torque doesn't...

Not all mid-drive motors are powerhouses. Bosch mid-drive motors start at 40Nm and you lose about 2Nm through the chain and many of those bikes don't have 1:1 or lower gearing so you lose some of that power. You can effectively end up with about 30Nm torque and most hub motors will easily beat...

While I agree a mid-motor will have an easier job going up a hill as the power is scaled through the gears and if you are in a very low gear you get maximum torque there are still advantages to hub motors for going up hills. The fact is because its independent of the drivetrain every single gear...

I'd be very surprised if it was legal. It's a pre-built ebike and clearly they aren't peddling its going at a high speed. It's been stated it is a Sur Ron ebike and looks to be an off-road model. These kids had no regard for the safety of others and the bike I guess would have been confiscated...

I'm not saying it makes no difference but you are often faced with a situation where to buy local support you pay a price premium so you end up with a ebike with lower quality parts than a model you may have bought more directly for the same money. Also some ebikes have more proprietary parts...

Was it a chase or were the police just following waiting for the ebike to stop. What was the legality of the ebike? I personally think the police have the right to stop anyone that they think is riding illegally. Was the bike designed for two passengers? What was its assisted speed? It's a no...

I think as a general rule hub motors cool better than mid-drive but there are so many variables that you have to look at specifics. I can imagine a very small geared hub motor having thermal issues but generally most hub motors have a lot more surface area and the outer case rotates to create a...

How often are people getting a throttle jamming open? Just curious seems like a fault with the throttle and would be a rare occurrence and at that point couldn't you just switch off the ebike. My on/off switch is on the same part as the throttle itself. Seems far more likely you need brake...

I don't think brands mean too much most of the time. You get the same Chinese factories selling their own bikes under their own multiple brands and also other brands used by importers. I always focus on spec rather than brand. Brands like Specialized, Trek, Cannondale etc don't make anything...

I don't think you need brake sensors on many ebikes with throttles but really it is down to how its implemented and how you use it. As throttles give you full control its unlikely you would be activating the throttle while braking and if you only use throttles for hills then I personally don't...

Great service from Wisper. While one of the advantages of hub motors is the power of the motor is separated from the drivetrain which can massively extend the life of the drivetrain when you have a rear hub motor all the riders power and the hub motors power is going through those same spokes...

The Gtech battery packs are quite low capacity and so each cell is discharged at a very high rate and they tend not to last that long as Gtech battery packs have had a high failure rate. They did a revised battery pack with better cells I believe but still it is asking a lot from these cells...

I think the donor bike is a Carrera Subway so has an aluminium frame and likely a high tensile or chromoly front forks. So personally I would of thought a front hub motor was the ideal option. I also seem to remember someone had quite a lot of difficulty fitting a rear hub motor to a subway as...

Also the Dahon Curl is a horrible Brompton clone. It removes the rear suspension block of the Brompton and has a aluminium rigid frame which means a horrible ride over rough surfaces. An engineering disaster but sold at Brompton prices. Also the less said about the nuwave models the better. On...

Developed production facilities is careful use of words because it does not mean they own these facilities. It could well be that Max.com has just opened a factory in Romania which is right next door to Bulgaria or more likely a company cheaper than Max.com that makes bikes in Romania outpriced...

Jetstream is a fuji-ta folding bicycle only rebranded to Dahon for some markets. It would be Battle branded in many Asian markets. Here it is on the fuji-ta site but they are only showing the original model which Dahon did sell but the model you are showing above has more ovalised tubes so has...

Bear in mind Dahon are not good for supplying spares for their standard bikes. There is a lot of proprietary parts on this ebike which could mean in a few years it unfixable. I must admit at £1600 approx this is more reasonable pricing than I am used to from Dahon but then it looks a fairly...