By my calculations, a rider plus bike at 20 mph has 67% more kinetic energy than the same combination at 15.5mph.I dont.
15.5 is already a higher average speed than most folk who need the assistance could manage on their own.
4 miles each way.
Can you borrow or hire a Brompton to see if you really need electric ?
By my calculations, a rider plus bike at 20 mph has 67% more kinetic energy than the same combination at 15.5mph.
Indeed, but if an e-bike can do it then more people will do it more often, so statistically the risks increase.It makes no difference to kinetic energy whether bike is propelled by human power or assisted. Many a rider can ride well above 15 mph. I know I can comfortably
Indeed, but if an e-bike can do it then more people will do it more often, so statistically the risks increase.
I'm guessing I'd sweat less or not at all on a brisk Ebike. This is where the GoCycle looks like winner, clean and efficient and should take me around the same time as it would on the Tube from St Pancras to near Victoria.
St Pancras to near Victoria.
This is exactly how/why I've managed to commute most of winter on my eBike. On max assist mode, even with 'just' 250watts going up a 7% hill is like sitting on the sofa.
I use max assistance and little effort on the way into work, and on the return leg I use minimal assistance but put the effort in. You can tailor how much work/effort to put in, even if there is a 20mph headwind all the way into work the eBike will see you there hardly out of breath.
Commuting also means adding lights, mudguards, spare inner tubes, D locks + laptop/lunch all to carry. Its enough to turn the most mimble road bike into a lumbering beast. But with eBikes you just don't notice the extra mass, I even stop enroute to pick up shopping these days. Yes a normal bike can do commuting fine, but I don't enjoy riding along at sub 10mph struggling against every hill like most bike commuters I pass, which is why I've never really commuted by bike before, certainly not during winter.
I see my eBike as a partial car replacement and not as a replacement for a bike.
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Its a great route - I used to do Euston to Victoria (and before that Euston to Liverpool street) and I've used both a Brompton and a hack bike at each end method. At the end I was doing Eus to Vic on a single speed, we didn't have showers at the last place I worked, but I rode a leisurely pace and its downhill or level on the way there, only a small rise through Traf square on the way back. Even without e-assistance, a change of shirt and quick spray was all that was needed, you get more sweaty using the tube on a crowded morning. Even on hot days the morning is cool for cycling, and riding up the Mall and past Buck House is a great way to start the day. With E-assistance it will be ideal.@Pale Rider - I worked in Wimbledon for the last decade. Driving from Nottingham to my Berkshire based man pad and then driving around the M25/A3 into work. Only been Central a few times and hated it, people just pushing in, lack of mannerS and for a new the tube system looks like spaghetti.
Google maps states I'd go past Buckingham palace which, I've only ever seen on Yotube/TV so POI's would be a nice change.
With the Ebike the purpose would be, rather than rely on a tube, just take the bike if it takes roughly the same time and as cyclists, we enjoy a nice ride rather than being stuck in a tin can.
and factor in (in pre covid times) queueing on the platform to actually get on the Vic line, plus its quite a schlep from Pancras to the Vic line platform. It used to be pretty similar times for me bike or tube to v close to one of the Vic station exits, but tube had a bigger chance of delay.My gut feeling is the elapsed time on the tube would be shorter, although the Victoria line is fairly deep, so you would lose a few minutes burrowing underground, then climbing back up to ground level.