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joca

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About joca

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    MTen3, MCM5

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  1. Ah! That's very good news then, if he likes it that much without the negative chamber. Is it only Duf who has reviewed with the negative chamber pumped up then? I think I saw one other review which mentioned the second chamber but they hadn't bothered to pump it up. Has anyone seen a comparison review?
  2. Chooch had a V11 with the nagative chamber in that mountain bike trail comparison with the S18. He talks a bit about the pressures he used here: time-stamped vid.
  3. 75a seems a bit high for these cells in 3p? Max continuous discharge (recommended) is just short of 15a at 10-25degC (and only 2.5a below 10degC) and capacity starts to drop off above 10a (test here). 50a is right at the limits of their capabilities, much more than that would put severe stress on the batteries and risk fireworks.
  4. joca

    Is it Legal?

    Exactly. They're not legal. So don't go quoting the law at an officer who might bother to look it up.
  5. joca

    Is it Legal?

    Just make sure you're actually following the law before you tell them it exists 313.5. ...less than 1,000 watts, the maximum speed of which... is no more than 20 miles per hour 21292 ...wearing a properly fitted and fastened bicycle helmet that meets the standards described in Section 21212 21294. ...shall only operate upon a highway designated with a speed limit of 35 miles per hour or less... shall not operate an electrically motorized board upon a highway, bikeway, or any other public bicycle path, sidewalk, or trail, at a speed in excess of 15 miles per hour Some of you may prefer to try to sweet talk your way out of it.
  6. I do not think bicycles should be required to have licence, registration and insurance, no. I said so earlier. He should have fitted a front brake to his fixie though. We're discussing the (il)legality of EUCs on UK roads, and how to get them legalised. The only hope of doing that is to differentiate between a wheel that is about the speed and weight of a bicycle (and can be covered by similar regulations) and something that is about the speed and weight of a moped (and can be covered by similar regulations).
  7. Because, as I said, the newer generation of wheels are nothing like regular bicycles. The lad that killed a pedestrian (I linked to the story earlier) was riding like a maniac on a super light carbon bike at ... 18mph. Newer generation wheels are 3-4 times the weight of a normal bicycle and go 2-3 times as fast. Faster than many of the 50cc scooters that require a licence (full, or provisional with L plates) and insurance for road use. There's no point pretending that all wheels are just like bicycles when some of them so obviously are not. If that argument gets accepted, they'll all be banned regardless.
  8. I don't think anyone seriously disagrees that EUCs (and other PEVs) should be treated like e-bikes. Which are limited (in the EU) to 250w and 15.5mph (and must be pedal-assisted, but that obv isn't possible for most PEVs; ditto the 250w power limit if 15.5mph is permissible). In practice that is how they are currently treated. Police mostly ignore them and loads of people get away with them for commuting. But we're way past the point where 15mph was an exciting top speed and all EUCs looked like a kid's toy. Wheels like the Monster, Sherman, V11 and S18 are going to attract a lot more attention. Especially if they're doing 30mph in traffic. The choice is all of them banned because the authorities conclude that there is no real difference between a 14D and an S18, as argued above, or reasonable legislation that puts smaller/speed-limited wheels on a par with e-bikes (and ideally a route to registration for more powerful wheels on a par with motorbikes/mopeds).
  9. Cyclists don't generally do 40mph in the city. Those who get anywhere close to it do sometimes end up killing people and the whole insurance for cyclists thing raises its ugly head again. The question isn't whether there should be a line, it's where you draw it. Wheels capable of higher speeds than a fast cyclist are also considerably heavier than the kinds of bicyles ridden by fast cyclists. There's no point arguing that they are exactly the same because they aren't.
  10. It's certainly a lot easier to get away with being unlicensed when it is possible to be licensed. Right now, anyone using an EUC on the road (in the UK) is breaking the law which makes them kinda easy to spot.
  11. If you were willing to work with the DVLA to make higher power EUCs possible to register, that would be amazing. If they were registered vehicles, it would remove the 25kph (15mph) limit because you would require a driver's licence (or L plates and CBT) and insurance, so it would be like any other road vehicle legally. There would undoubtedly be power and speed limits for riders without a full driver's licence but they wouldn't be as low as for unregistered PEVs. The big barrier is getting them registerable (and finding somewhere for the licence plate). There'd also need to be the equivalent of a CBT test. This is a simple half day where learner motorcyclists prove they're safe on the road - exercises in a playground and then a road run with the instructor/examiner. Cheap and simple, and no reason EUC riders couldn't do exactly the same test as motorcyclists so there wouldn't be any need for new test infrastructure. Passing your CBT allows you to use up to 125cc motorcycles on the road with no need for a full driver's licence (minimum age is 16). People with full driving (non-bike) licences have to do it too. An EUC is just a one-wheeled motorcycle so it should be able to slot into exactly the same laws quite easily. Third party insurance would be pretty cheap for such light vehicles. I don't see any other route to getting higher power machines made road legal, it's the insurance they're mostly worried about. But it should also be possible to get EUCs with a top speed of 15mph (25kph) treated the same as ebikes, which is likely what will happen for escooters too. Although a CBT would still be wise for anyone planning on riding in traffic.
  12. Currently the only PEVs allowed on the roads are e-bikes, limited to 250w and 15mph, and must be pedal-assisted (technically e-bikes with throttles are illegal but I don't think it's enforced, might affect liability in an accident). Anything else needs to be registered and insured and registration won't usually be granted unless manufacturers jump through the right hoops (which generally, they don't). This is all based on EU law so the UK now has more freedom to amend the rules. I'm hopeful that the e-scooter trials will be the first step to normalising PEVs on the road (or further normalising, as loads of people seem to ignore the law without real consequences, although the Met Police have had a few crackdown days). I think they're going with a dockless model for e-scooter hire which is not great environmentally (they pay people to go round and collect them in vans for recharging, which often happens with a generator) and will also cause no end of strife for people who are blind, pushing buggies or using a wheelchair. If demand is high enough, there will be a good case for docking (making the hire model more costly) and for encouraging more private owners who will pick their vehicles up and take them inside with them. I doubt any relaxation in the law will cover higher power EUCs any time soon and fairly low speed restrictions are very likely, making them a little less desirable for longer commutes. But I think there's a good chance that they'll end up being treated much like e-bikes. Eventually. Technically they're not legal for use in parks or on towpaths either. Only on private land with the owner's permission. This is much less likely to get enforced, as long as you're not upsetting pedestrians/cyclists/groundskeepers. The canal network is excellent and the Canal & Rivers Trust reasonably relaxed if you're not causing a nuisance (but it may depend on which patrol officer you happen to bump into). There's also a national cycle network which is patchy but useful, and you'd get away with it if you weren't upsetting anyone. That would mean sticking to bicycle speeds on any stretches were there are people around to get upset about it.
  13. Thanks for the excellent thread. Could I just ask a quick question about heat when charging? I can't find a fireproof charging bag large enough for a wheel so I'm planning to wrap them up in fire blankets instead. As with charging bags, this will cause everything to get that bit hotter while charging. With such low C used for charging it's probably not much of a worry? Any concerns or better solutions (short of a metal cabinet or secure outside space)?
  14. That seems to be the consensus from all the comparative reviews I've seen: V11 is the best overall but better suspension, pads, and lighter weight favour the S18 for off-roading. I don't think there is any such thing as a bad decision here? If range isn't an issue, the S18 is cheaper and better for off-road use. If you care a bit about range and less about money, and especially if you want it for mixed use, then the V11 might be a better call.
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