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Just a quick update. Went out for a ride at the weekend and the freewheel began working again following some hard pedalling on a steep incline, then froze up again some time later following another incline ! Will try flecc's idea but looks like it's going back. Thanks again for the advice.

Ahh, now I understand. I looked to see if there was a problem with the freewheel on the back wheel but thanks for explaining this to me. It makes sense now. So you wouldn't suggest I try and unjam it ? Is it a pretty complicated job ?

Just to add previously I recall you could backpedal and the assistance would stop, now once the assistance has kicked in I can't back pedal as I meet resistance and it just keeps driving me forward for a time.

Hi Alex. Thanks for your reply. The bike is still under warranty. It recently had the rear sprocket replaced as the other one sheared off. Ran fine for a couple of days and then this. I'm not the most technically minded but I'm completely stumped !! It doesn't have a display.

Hi Guys, I have a Kalkhoff Agattu Impulse HS8. I love the bike but just developed a niggle and wondered if anyone had any ideas what might be going on - I'm hoping it's something simple ! Pedal assist is working fine until I ease off on the pedaling and I can feel it pushing my legs round and...

Yes, so true David :-) The Wisper cut an impressive sight as it handled his over-generous proportions with ease ! Could have been smoking a pipe in his favourite armchair... He looked a satisfied customer as I pulled a wide one round him.

I'm exactly the same ! Always looking for a chunky hub, slab of lithium, feet freewheeling backwards uphill, or the reassuring flicker of a tell-tale LED ! The other day I saw a huge guy on a wisper smoking a fag and making a very lazy effort at pedalling. A poster boy for the 'Why Not Just Get...

PM sent John.

If only Ezee did a 14 or 15ah LifePO4 battery I'd be slightly happier to part with 500 quid..

I don't know the size and weight of the batteries but I'm sure Dave at Kudos can give us that information. 2 10ah batts work out about the same price as Ping option but with greater flexibility. Dave also suggested I upload an image of a kudos battery so others can perhaps advise on the easiest...

Very interesting info jhruk. Those Ping batteries sound great and that's brilliant after 20 months. Been talking to Dave at Kudos about wiring in a 10ah rack battery and keeping another as spare. Ping are sounding extremely impressive though and thanks Roger for explaining how to wire it. I...

Hi Eddie. It's a fair point. I was getting around 40 miles out of my onbike 14ah lipo (which is nearly 2 years old now and still fairly good), so a ping 15ah is certainly tempting if it can perform to a similar level but over a longer period. I practically live on the bike though and it would...

Thanks Jerry, I will do. I'll also message some of the buyers in his ebay feedback to see what their experience has been.

Incidently, I've received very prompt, friendly responses, with excellent english from the ebay seller I mentioned above. So I think I may take the plunge at that price..

The battery is a nice neat fit considering you've got 20ah there, and that range info is very encouraging. It becomes so economical with a decent enough range. Will keep you posted on how I get on with my replacement battery. Just in the process of getting rid of the car...which will make for...

Thanks for your reply. I think I may give it a go at that price. 6.8kg doesn't seem overly heavy for 20ah so I'd probably try it on the rack. I know it's been said a thousand times before but I just don't understand why a 14ah battery is 500 quid in the uk when it too is coming from...

Hi everyone. Just wondered if any of you technical guys could help me. I have an Ezee Forza and I'm looking to buy a Lifepo4 battery. I know Ping batteries have a great reputation and am considering that. I just wondered if this battery might be worth a try, but I'm not the best with the...

Hi Frank. The BMS battery looks an interesting option at £250, though I can certainly see the benefits of the standard batteries too. Are there any links anywhere for wiring diagrams for these BMS batteries ? How would you go about wiring one to a bike with standard ezee battery connectors ? I...

Hi Tony, well I can report this newest battery is proving to be a real winner thus far. I've really looked after it and it's performing admirably after a year, so I hope I'll still be singing it's praises this time next year. ps. all the best with next week. Hi John. 800 charges would...

Hi David. Yes, that certainly does make it more of a close decision for you. It would be very interesting to know how the Juicy bikes compare. I'd also be really interested to hear if there are any further battery developments in the pipeline with Ezee ie. 1000 charge possbility or an 18ah...