No, you are not reading it wrong Andy, the DfT have been ducking and diving around this issue since November 2003.Am I reading this wrong?
Extract from Dft
The full response from the DfT reads:
“In response to your email about converting a normal pedal cycle which has first been used on the public road as a pedal cycle, I am pleased to report that type approval does not apply – it only applies to new vehicles, not converted ones. Therefore if you convert a pedal cycle which has already been ridden on the road to “twist and go” operation, it does not become subject to type approval. As previously noted, the regulations will be directed at the manufacturers and so riders making conversions are not committing an offence.
What they've said is true in each detail, but if any claim arose where the bike could be shown to be post January 2016, a court will use whatever evidence is available. They don't take kindly to attempts to hair-split so could refuse to accept there's any difference between a conversion and a pre-build and use the available regulation on what a pedelec should be. That's the senior courts job, defining the spirit of the law, and clearly that's no throttles in this case.
Of course if a case could be made that the bike is post January 2016, no problem, at least until new regulations arrive in 2018.
Overall there's no chance of the police prosecuting since the DfT could intervene to block prosecution as they've already done on the power issue, 200 watts versus 250 watts.
But this is my view of the law as it stands, revealing every possibility of coming unstuck. In reality it's very unlikely anyone ever will, but I can't guarantee that.
.