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Halfords bikes are made with Chinese components, except their CB range - if you go for conversion, then go for some quality European made components.

on my bike, the top gear gives 84 gear inches and I pedal flat out at just 24mph at around 110 rpm. The Tern P9 has 9 speed rear cluster, with 52T, 103 gear inches. If you could swap out the chain ring of the BBS01 for the Tern's 52T one, you should be able to do 24mph with slower pace. Somebody...

sorry to hear about the break in and welcome back. Cyclotricity have their Stealth bike within you budget. Any bike under £1000 is difficult to match with built your own, because a decent kit would cost you at least £500 and a decent bike would cost at least £400, unless you get a second hand...

but can you swap out the chainring on the BBS01 for the one on the Tern?

I think you can ask the supplier of the Q100 kit to fit it to a white rim. It's easier for them to do this than for you. I agree that the Q100 offers reduced weight but by the time you add the rear rack battery, controller and wiring, the weight advantage is reduced and power and speed wise, the...

why designers always take a minimalist approach when producing a new concept bike? I just don't get it. Real bikes need shock absorber, mudguards, chainguard, carrier, reflectors, lights, bell and lock. The real product, if ever the concept bike is to succeed, will look quite different from the...

20 spokes, but the BB is standard, that's why I recommended a CD kit. I suppose one can drill the extra holes but you still need to find 36 special length white spokes. The Tern has 32"-93" gear inches on 52T chainring, the BBS01 has 46T, translated to 30"-86" gear inches if fitted to the P9...

I have never understood why cyclotricity put the motor in the front when the battery is in the middle front. The weight distribution is not good.

it would be a lot easier to use one xiongda plus one BBS01, both run with a single 48V bottle battery. Wiring is easy, weight distrubution is like in a normal bike, plenty of stealth, both motor only need one throttle. I reckon you could pull wheelies with this configuration. Each motor has...

I think the cells got uprated too.

the Sport CD is out for about a year, the TS about 8 months.

The CD is better, stronger motor, climbs hills better, slicker gears too. If you dislike derailleur noise, then the TS is better. The TS does not have throttle, you set the assist level then pedal away. Motor stops when you stop pedalling. I like it but that's because I like pedalling and don't...

that's a bit over simplified. Bikes under £1000 are mainly sold on internet by companies like Woosh which list ad-nauseam little technical details so they can compete with one another on the net. Their proposition is value for money. Bikes over £1500 are mainly shop bought and carry well known...

if you are an employer, you can buy the bikes as plant and machinery then loan them free to your employees. You recover VAT and write them off at usual 25% depreciation per annum. If you want to recover NI and tax, then lookup cycle to work or ask Hatti at Woosh how it works.

That's pretty much perfect. The Sirocco 2 does not have LCD, to go faster than 15mph, you should consider changing the chainring to 48T or 52T to boost assisted pedalling.

if you are not overweighed, the Sirocco 2 with 15AH battery is the best choice for commuting in London. It costs £699 and has puncture resist tyres and is far less likely to get nicked.

When you see a label on the controller '17A max' - like many things in electronics, it's approximate. It can vary a little around 17A, allowing short surges to peak over that 17A. Without a high discharge BMS, the large current draw causes the voltage to sag. So even when the current is allowed...

sellers have to enlarge their range because the technology improves quite quickly, there are quite a lot of 2013 models with Bosch Classic motor, then this year, makers upgraded their models to Bosch Active and Bosch Performance. The European market has more than 2000 models on sale. You have...

John Sergeant gave a figure of 20,000 for UK sales, I suppose he's got it from the EBCO guy? it seems too low to me. I reckon the total sales of advertisers and trade members of this forum is already around 15,000.

I wouldn't pay much attention to squeezing the brakes before changing gear. I have never heard of anyone who's wrecked the derailleur on crank drives. You only has to slow down a second to reduce the load on the chain, change gear then rev up again. Slowing down avoids the noise from the chain...