Search results

Your contract of sale is with the dealer you bought the bikes from. It's for them to sort the issue, or make arrangements for the issue to be sorted, and meet the cost of rectifying same. If they have no sensible suggestions, try a decent local bike shop that does know what they're doing, or...

If the charger is outputting 85+ volts, I'd be pretty sure you're going to find it's the isolation on the secondary winding has failed and is passing high voltage from the primary through to the output/battery. It happens from time-to-time with cheap switch-mode power supplies/chargers. It...

No, you shouldn't. Because it's you (Bosch motor e-bike owners) paying for this infrastructure, whether you use it or not.

I don't really understand the logic... They're putting ONE charge station on the Bristol to Bath cycleway (which I have cycled a few times). That route is just 13 miles each way. Who but an idiot would need to charge their e-bike along the way? If there are such idiots, they're usually in...

I personally really do despair. People pay some measure of a premium for bikes they buy from a dealer for the comfort of having local support and someone to hold their hand if things aren't quite right. And yet what do they do? Scream blue bloody murder over all forms of social media instead...

If Kalkhoff still make them, then any UK Kalkhoff dealer should be able to order one for you through their normal channels. By the way, a 36v 17.5Ah battery is 630Wh (not 208Wh). As an aside, DHL fly lithium - I currently have one being flown in from China.

I'm lovin' it so far. A tour of the West Coast from my sofa! I remember well my 80's stays at Craignish Castle, drinking at the Galley of Lorne, and trips up to Oban, Fort William and beyond. Good times. I think something needs to be done to increase your visibility. The trailer body is clearly...

LVC is labelled Low Battery Protection in both PC & Android apps. The on/off oscillation happens with the rapidity of a machine gun. Would measurement even pick that up? Other forum members here bought the same bike as me at the same time: Some lowered the controller LVC (32v on a 36v system is...

This may not have anything to do with your problem, but it's all I can think of. My hybrid bike uses a Bafang 350w 80Nm MaxDrive (M400). The bike came with a mediocre Samsung celled battery with limited current capability. When drawing very high current in too small a gear, there can be a very...

You need to be far more specific. It turns off and you need to switch it back on, or it comes back on itself after a while, or the power just blips out for a second or two... over rough ground, up hills, or at any time over any terrain... is it totally random or in sequence with other events eg...

If the whole bike goes dead, a battery issue. The bullet connectors are a known weak point and melt if not tight. Might be LVC if you draw too much current and the battery is old/weak/failing or quite low on charge. If the display stays on just the motor cuts out check all the controller wiring.

P1 is system voltage = 36 (volts) P2 is wheel size = 200 (20.0") P3 is max speed = 25 (km/h)

Check the P1 setting on your Sons bike is set to 36 and not 48. The D4S is a 36-volt system; the Yolin display can be set for both 36 and 48v systems. If wrongly set to 48v, the controller thinks the fully charged 36v battery is a flat 48v one.

No, this isn't an ebike forum. This is a pedelec forum. A pedelec is: "A pedelec (from pedal electric cycle) or EPAC (Electronically Power Assisted Cycles), is a type of low-powered electric bicycle where the rider's pedalling is assisted by a small electric motor. However, unlike some other...

You're making assumptions, and I'm working with reality. Fiido cells are IMHO pretty respectable given the low cost of the bikes they're selling. My own Fiido D11 claims a 417Wh battery, and guess what? It was and still is, albeit only in its second year of use. Loads of long-term Fiido owners...

In your situation the cheapest e-bike I'd consider is a Fiido D4S at about £680 delivered, bought direct, delivered from UK warehouse. Brand new, full warranty, support from a handful of London dealers, 10.4Ah battery with decent (but not premium) cells. They last well if not abused. Foldable...

Unlocking means removing the legal assisted speed restriction of 15.5mph. On my D11, it'll assist up to 18mph unlocked. An unlocked D4S goes a little faster - IIRC about 20mph (different/slightly heavier motor). If that's important to you, check first: Fiido changed the display a few months ago...

My commute is (roughly) 2 miles - train - 2 miles - train - 4 miles, so 8 miles each way, although I can shorten the middle bit now we have the Purple Crossrail (you need a proper folding bike if you're taking trains certainly in rush hour, and that's especially useful if it decides to rain...

The Fiido's are decent enough for the price, although that price has gone up on both by £100-£150 since I bought my D11 for my own commute across London last year. If you like the Brompton idea but want to keep the cost down, you might consider the LitePro Brompton and add a Woosh or Swytch...

I don't know how many links are in the chain... it doesn't really matter. The chain only needs to be long enough for the derailleur to tension correctly in all gears. To me, the standard 52/13 7-speed gearing is well judged given the (usual) 15.5mph capping, lower 35Nm torque of the rear hub...