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I had a similar problem twice in the past, once with an ordinary 21 speed bike and once with an eight speed ebike (even with power turned off). In both cases it sounded as if the hub was been hit with a small hammer (a deep tapping sound). In both cases, it was noticeable that there was play in...

Hi. On my kit, the setting P2 = 1 and not 6. Its important with multicore cables not to put too sharp a bend. There is also a recommendation not to tighten cable ties too much, so I presume these cables can be damaged.

A lighter more flexible properly fitting spoke (not too long at bend) will have less movement (and fatigue) at bend. Its also important to pre stress spokes and re tighten spokes. I do this by squeezing as hard as possible opposites pairs of spokes using gloves. This loosens the wheel so you...

https://www.schwalbe.com/en/catalogesflyer.html Hi. If you look at the Schwalbe tyre catalogue 2018, you will see that some tyres have a higher 'ebike ready 50' rating (e.g Marathon, energiser, Nobby nic etc) and are suitable for up to 50 km/hr. Other tyres (e.g. Magic Mary, Hans Damf etc are...

Hi. Yes, the tab needs to be down in the droupout. I fitted a 36v version lately and had to grind approx 3 mm down into rear dropout (to give a total depth of about 16 mm) so that the the whole axle and torque washer tab was nice and secure in the dropout. This was no problem as the dropout was...

Hi. I use to 'load test' large 50 volt lead acid batteries when I worked for the phone company. I presume the same principles could apply to test any battery. To test a battery then, you need a suitable load (e.g. resistance wire), an ammeter,voltmeter and a clock. So, for example, if I wanted...

Both I and another member had a problem with the pawls sticking in the Pendleton freewheel. I actually dismantled the freewheel and found that the pawls were sticking in their wells due to the grease becoming hard and solid. I just cleaned up the freewheel pawls and the bike has worked ok...

Hi. My battery developed a fault lately (the battery would not even charge) and it looked like a faulty bms. However, after much investigation, I discovered that one of the 10 sense voltages was missing and eventually I found bad soldered connection between nickle strip and separate pcb board...

I had a clicking noise coming from my front mxus hub (that kept time with the front wheel turning) and it stopped when I tightened the spokes.

Hi. Yes, it can work and has been written about. There are some battery suppliers that give details about how to 'jump start' or 'awaken' li- ion battery & packs. However, where they differ from your method is that they generally only recommend 'jump starting' for only a short period of time (...

I weight approx 90 kg and probably not the fittest, and I find that about 9wh per km (or about 15 per mile) @ max 25 km/hr speed seems to be my battery consumption. I can do better if I lower the speed, but this takes some of the fun out of cycling.

There are three things about the way the rear wheel on the pendleton is put together that may (imo) make it more likely to break spokes. 1. A 3X spoke pattern is used and because of this the spokes curve as they leave the nipple. 2. At the hub end, there is a gap between the spoke and flange...

I came across this article lately about an (older model?) Bafang/8Fun internal hub freewheel/clutch failure, with some photos of stripdown. http://bruceteakle.blogspot.com/p/bafang-freewheel-failure-and-perhaps.html http://bruceteakle.blogspot.com/p/blog-page_16.html

I think 2.6 mm is 12 gauge and sometimes used with motorcycles. e.g.https://www.custommotoredbicycles.com/11_gauge_spokes_248mm_steel_stainless_steel11g You could try a motorcycle shop for a spoke wrench or ebay, but it can take a while for delivery from Asia. I bought one of the type shown...

The Pendleton battery is 8.8ah @ 36v =320w approx and is probably on the small size for 25 miles (especially with hills), so if you replace the bike, go for something with a larger battery. I have nearly 5000 miles clocked up on my Pendleton and I have replaced 4 rear broken spokes and have...

I would recommend that you inflate the tyre to about 5 psi after fitting and then go around the tyre with your hands and eyes, checking that the tyre line close to the edge is parallel to the rim and also pull at the tyre (almost like massaging, making sure that the wired part of tyre is firmly...

I am speculating here but I am presuming that some wedging action of the rollers is to some extent how the clutch works (but is perhaps excessive in some cases), and whats best needed to release the wedge is a short sharp change in speed between motor and hub. Now, I can see how this may not...

The other possibility is that the 'roller' type clutch mechanism is sticking. If you think about it, the rollers engage at the lower motor speeds and sometimes with a surge under high torque. This wedges the rollers. The disengagement on hub motors takes place at the higher speed/ lower torque...

I am just wondering is there any possibility that this problem could be caused by e bikes been fitted with tyres that are more durable but having very high rolling resistance, especially at lower psi. For example, Bicycle Rolling Resistance website tested Continental E.Contact tyres and found...

Is it OK to dispense with the axle (spacer?) nut as shown in photo below. The reason I ask is because I am thinking of fitting a mxus xf07 front hub to an older bike with steel forks but it is a tight squeeze. The bike has V brakes and it would be a more comfortable fit (no need to spring...