How Did Flyer Do It?

[Cyclezee]

The BikeTec Flyer T series is available in a HS version with a top assisted speed of 45 KPH or 28 MPH BikeTec - T-Serie. FLYER T-Serie
The Flyer has a 150% mode to achieve this level of performance. They use the Panasonic motor and battery now adopted by an increasing number of e bike manufacturers.

My question is how did BikeTec do it, and could other Panasonic powered bikes be given this option?
Or would this be extremely expensive, complex and a case of don't try this at home folks?
Obviously, there would be a greater drain on the battery and the range would be reduced considerably, but would this also lead to shorter battery and motor life?

Lots of questions, but does anyone have the answer to boosting the performance of this system?

Clearly, the speeds acheived would not be legal on public roads in the UK and several other countries. The Flyer HS versions are classed as mopeds in Germany and Switzerland.

J hn

 

[flecc]

They've developed these mods themselves John, like others such as the "walk alongside" throttle, and their basic high speed design is now produced by Panasonic as well and will appear in the Pro Connect S.

Given the high prices of these Flyers, it's likely they designed a replacement circuit board since the standard micro-electronics one couldn't readily be modified, and I doubt that software tweaking would so radically change the standard performance. It's also possible the internal gears are changed to allow for some higher chain speeds. Therefore it's probably only possible with a replacement high speed motor assembly. The old standard unit was £450, so I'd hate to guess the price of the high speed one. BikeTech prices are very high anyway, the standard 10 Ah battery from them is £105 higher than from 50cycles.
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[Cyclezee]

Thanks for providing the answers Flecc. It will be interesting to see how the Pro Connect S performs, I imagine it will be considerably cheaper than a Flyer, but still expensive.
I see it is on the Kalkhoff website and interestingly has derailleur gears, front suspension and hydraulic brakes.
Kalkhoff - my bike... Vollgefederte und sportgefederte Trekkingbikes, Citybikes und Offroadbikes

J hn

 

[flecc]

Yes, the derailleur is normal on their high speed versions. I believe the Pro Connect will be about £500 lower priced than the Flyer version. I see it has 36 spoke wheels as well as the suspension, so a bit more like the Agattu/Tasman than the Pro Connect.

I see they have a hub motor bike too in the Jubilee 7G.
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