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There are too many possibilities. I think you'll need to visit your Giant dealer to get a diagnosis. Let's hope they have the equipment.

Our power limit is not 250W. It's a motor rated at 250W, which is a different thing. In practice, there is no power limit. We have 250W motors that output around 600W, which is more than enough for most circumstances. Our 250W motors probably put out more useable power and torque than many of...

Thanks for that info. Now we have the whole running costs, which work out about 10p per mile for the first year without depreciation. I would expect a bit higher in the second year because the gear train will be starting to wear and there seems to be a peak of problems that come in the 1500 to...

That's not a bad bike for conversion. Disc brakes would be better, but what you have might be acceptable. Maybe uprate the pads to Koolstops or some other higher grade ones. With a motor, your speed might be nearly twice as much, so you have four times as much energy to dissipate. That's without...

Can we ask how much the services cost and how many services they had in that time?

I've had the same problem with the cable guide under the bottom bracket. The simple solution is to run an outer cable from the points either side, so you can route the cables around or over the motor. There's nothing to stop you running an outer cable all the way from the levers to the brake or...

It's one of those things that sound like a good idea, then you realise that you can buy 24 of these for the same price. How many times are you going to get your lights nicked...

Yes. By all means keep an eye on it, but no need to panic just yet. Mind you, it's a heavy bike, so could get worse quicker than most.

Can we get that into perspective? How many miles have you done in that time? Did you need to fit any services parts, like chain and sprockets? Did you need to take the pedal arm off to service the main bearing? Do you only ride when it's dry? I ask these questions because I have a few electric...

Are you saying that it has 350w stamped on it? I'm asking as a retailer who might get in trouble selling it to somebody if that's the case.

You don't need to worry about cracks in tyres until you can see the tube bulging through.

Air resistance is the biggest factor that affects your speed, so if speed is your most important consideration, always choose the bike with the lowest air resistance. That means thin frame and wheels, uncluttered handlebars, and low profile cranks and chainwheels. As well as the bike, you need...

At only 75kg every bike will be powerful enough and will get you both ways without having to recharge. If I were doing it to save money, I'd be looking at a much cheaper bike. The more you spend on the bike, the higher the servicing costs and the more frequent and more expensive are service...

Can anyone tell me what markings you get on the motors in the 350W kits? Do they have a label, embossing or what? Are they marked 350W?

I wouldn't say there's much difference in installation. Even if there is, would you want to save 10 minutes of installation to spoil years of riding your bike? A rear motor gives a much better ride and is safer. Yes, it's not easy to test the halls if you have the 9 pin connector on the motor...

Just as well, a rear motor is always better.

Use the pins on the battery receiver, and from there it's not difficult to pick out the three big pins in the motor connector.

It's OK if you have enough velcro, but you turned your bicycle into a heavy motorbike and you have no security when you park the bike. With the extra weight and speed, both your tyres and brakes become inadequste, so you have to upgrade them too, then you have even more weight until you have...

It's dead easy if you do what it says in that manual. You switch on with the middle button, then press the outer two until the mph flashes You then press the middle button several times until you get to the end of the basic settings. You then press the outer two to go to the P settiings Then...

You don't need to open it. Search this forum. I already explained how to do it several times in the last few weeks.