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That's cheaper than a Bafang Max Drive. It's not often the real deal is less than the knock-off.

Fair enough. As a general point, I'm not sure changing the chain often is a good idea. Chains get keyed to a cassette as both wear, which is why plonking a new chain on an old cassette can result in slipping gears where none existed before. Using one chain and keeping the drivetrain...

I'm confused, isn't the Sram cassette 11 speed? If so, I don't think it's compatible with a 10 speed chain. Perhaps you could post a link to the bike or the exact model of cassette.

Riese and Muller frames look unique to me, so in that respect they started with a clean sheet. The Charger has raised chainstays, dedicated carriers, and the tubing is uniquely shaped. The Delite is the only full sus bike I'm aware of which is designed for trekking/touring as opposed to...

Some truth in that, although ebikes are not the best example since none have a huge marketing spend. The most marketed ebike - the Gtech - is relatively cheap. Taking Cube as an example, all their bikes, including cheapish push bikes, get the same show on their website. There's general brand...

If you like the natural cycling feel of the Bosch motor, a pedal sensor only bike will feel a bit basic. It would give you access to full power at any cadence. I think the Bosch system is excellent, but it can be a bit of a mixed blessing if you are struggling on a climb. A new CX bike would...

Aren't you mixing the effects of motors and gearing? Lower gears could be fitted to the Classic bike. I put a smaller ring on the front of my Rose, and a larger one on the Alfine 11 hub at the back.

Range is what's required for many of us. I run Bosch bikes, the modest power is plenty, but the range is not. It's no accident Bosch has introduced a twin battery system, usually specced as 500wh x 2.

Er, at the risk of repeating myself, if the OP cannot get up hills without stopping on a Bosch Classic, there's no guarantee he will be able to on a CX. I like my Bosch bikes, but I'm not sure they are suitable for the OP. A higher powered pedal only sensor bike would be better.

The shops nearish to you in Bristol tend to do dearer bikes, most of which are crank drive and have the torque sensor you don't want. A 20" wheel bike is good for shorter people, and the podgy tyres are surprisingly comfortable due to their podginess. They are also easy and fun bikes to ride...

Strictly speaking, it should have been 'electrically operated window winders' because the window winders are still manual, or rather mechanical. While I'm all in favour of correct use of English, it is a living language and the term 'electric windows' has come to mean 'a car window lifted and...

Some rated battery capacities must be nominal, as in you can't use all the watt hours stamped on the label. However, I did London to Brighton at an average 16.5mph for 45-odd miles on one and a half/threequarters Bosch 400wh batteries. This suggests about 15wh a mile, which sounds about right...

Perhaps I'm getting confused, but I thought Andy said he could only just about get to work on a single charge - he mentioned taking the charger to work. In other words, his range is 15 miles, which equates to 39wh per mile. Surely that's very high, suggesting the battery has nowhere near its...

Bosch recommend batteries are charged and kept at room temperature.

Sounds like you grasp the point. Some people expect the dongle to turn the bike into a moped and are disappointed when they can't cruise effortlessly at 25+mph.

This being the internet I expect instant contradiction. But is 21mph on a pan flat route really so different to what I posted?

Bear in mind the dongle doesn't add any power. It still makes a big difference having the motor still spinning above 15mph, but unless you are a strong cyclist you won't be able to rattle along at 20+mph for long, or against a gradient or headwind.

Should do, although the cheaper one will scramble the speed reading on the display. That applies to Intuvia as well.

Some challenging gradients on that ride, not least because of the terrain. The CX motor is perkier than the Classic, but the difference is not great and I wonder if it will be sufficient to make the difference between having to stop for a breather and being able to ride all the way up.

The ride of a Purion bike will be the same and it can come with any Bosch motored bike, depending on what the bike maker specifies. It's less vulnerable to damage than Intuvia and Nyon, which is a benefit to those mountain bikers who see falling off as an occupational hazard. For your use, the...