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Plenty of evidence of noisy gear changes with crank drive bikes. Extra noise = extra wear.

Seems to me the snapped chain is just more evidence crank drive e-bikes are (too) hard on transmissions. A chunky chain on a single sprocket linked to a hub gearbox might be OK, but thin chains, derailleurs and multi-sprockets are a no-no.

Phil, Bosch/crank drives are harder on transmissions than hub drives, which arguably reduce stress. A fast rider is harder on transmissions than a slow one. So if you are going to be riding your new bike quickly, best to avoid all crank drives.

Gazelle battery prices are still stupidly high - £450 to £750 - at a time when other suppliers have brought the price down to £250. The Gazelle system records details of use, which could settle any arguments in the event of a warranty claim. I tried an open frame Gazelle which was about £2.700...

It's crying out for a NuVinci hub.

List of NuVinci equipped bikes here: NuVinci® Bikes Essentially Everywhere at EuroBike 2012 | Fallbrook Technologies Inc.

A tow path is a mixed user path, so I think the OP will struggle to maintain much speed, irrespective of fitness. Dog walkers, children and the like won't want the OP hammering past at 15mph+. Might be worth checking if some of the journey can be done at speed on ordinary roads.

One of the problems with the NuVinci seems to be it can be quite hard to change gear. I saw a YouTube video and the rider was having to give the grip a fair old twist - hydraulic actuation could be the answer. The hub is being fitted to more e-bikes - there's a list on the NuVinci website -...

Another method of breaching D locks is to use an expanding jack. If possible, it's better to lock the bike in such a way that there is little room left inside the 'D' to insert the jack. Lock it to as big a post as possible and/or use one of the thicker frame tubes on the bike.

So the pro-electric bike lobby might have fielded a ringer. Pity there was no one on a horse - we might have found Shergar.

Dave, Looks like your 'not for profit' model is the way forward for e-bike shows for the time being. I read somewhere that one or two of the bigger names in ordinary bikes didn't bother with the NEC, so something's not quite right there. Didn't you post something about the organisers? The...

The bike being illegal is an assumption which does not stand up to even casual scrutiny. A reasonably fit cyclist on a non-assisted bike could average 19mph over just seven miles. Thousands of club riders up and down the country aim for that sort of average speed - but over a much longer...

When Wisper's bigger than Raleigh, all of us on here will be able to say: "I knew that Dave when he had nowt."

To encourage wider attendance by importers/manufacturers at the shows, you could charge the smaller names less than the bigger ones, but still offer roughly equal pitch sizes. The larger names may not want to pay more, but in terms of building the event and reaching the 'tipping point', this...

At eight months old the bike is still under warranty. Brake pads would be excluded as a consumable, but I think a warped disc ought to be covered.

The grounds of a stately home would do the job, apart from not having a roof. National Trust properties can be hired for events, and e-bikes being 'green' an inquiry from Kudos should go down well with the tree huggers at the trust. Nostell Priory near Pontefract is a possibility: Nostell...