Swytch
any Brompton owners signed up for this conversion?
URL is swytchbike.comdashfolding-bike-kits/ (I am not allowed to post URL's until I have 10 posts) - so put the dashes in looks good value at present - but it is crowd funded and if you order now they are saying June delivery the videos are good and apparently the business is being put together by guys from Panda cycles who have a good reputation |
I have, the price was too tempting. I'm not sure the bracket will fit most configurations though... their website shows it on the post-2017 M-Type. So I'm not sure how it will fit my Brompton.
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Originally Posted by chagzuki
(Post 20278228)
I have, the price was too tempting. I'm not sure the bracket will fit most configurations though... their website shows it on the post-2017 M-Type. So I'm not sure how it will fit my Brompton.
I'm really tempted, but as you say, not sure how it will fit and ride - pity it cannot fit on the Brompton block |
It's crowdfunded - so June delivery most likely means November, lol. Hope it turns out well.
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Originally Posted by BillN33
(Post 20278251)
did you go for the 25 or 50 mile kit
I'm really tempted, but as you say, not sure how it will fit and ride - pity it cannot fit on the Brompton block |
Originally Posted by BillN33
(Post 20278251)
did you go for the 25 or 50 mile kit
I'm really tempted, but as you say, not sure how it will fit and ride - pity it cannot fit on the Brompton block |
Originally Posted by Schwinnsta
(Post 20278674)
I think the Brompton one is only 25 kit.
I wonder how long the discounted price will last? |
I stand corrected.
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It's crowdfunded, but off the shelf components, except for the battery box, which is just a box. As a hobbyist with several electric bike kits, I think it's a good concept in design and if it didn't have to ship from the UK, I probably would be on their list.
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Originally Posted by Doc_Wui
(Post 20286454)
It's crowdfunded, but off the shelf components, except for the battery box, which is just a box. As a hobbyist with several electric bike kits, I think it's a good concept in design and if it didn't have to ship from the UK, I probably would be on their list.
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A to B magazine has reviewed the Swytch.
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There have been several front-hub Brompton kits on the market for a while now, I had the NYCe Wheels kit. It worked fine, regardless of what your bike shop guy says.
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Originally Posted by Joe Remi
(Post 20451596)
There have been several front-hub Brompton kits on the market for a while now, I had the NYCe Wheels kit. It worked fine, regardless of what your bike shop guy says.
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Originally Posted by jpjuggler
(Post 20451619)
hmmm. that's great news... I can only assume NYCe is fairly reputable... how long have you had it.... ? Lots of miles on it? thanks for the info.
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Originally Posted by jpjuggler
(Post 20451554)
I went to Local bike store that carries brompton.. the mechanic said bromptons are not engineered to handled power pulling from the front wheel. it damages the frame/folding point. I do not know if the mechanic was sharing credible info or not.
Originally Posted by jpjuggler
(Post 20451554)
the mechanic also said that brompton is coming out with its own electric model and the whole bike was re-engineered to take pulling power from the front.....the brompton site for electric is uk only... nothing available in N. America......at this point,..
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Brompton waited way too long - and way overhyped - what is essentially their own version of the standard 250W front hub kit. This "revolutionary" ebike "designed with help from Williams F1" might've been interesting three years ago. I'm bored waiting for it now.
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BTW one interesting thing about the Swytch is that in opposite to most other conversion kits you do not have to spread the fork or widen the dropouts. Both is to a minimal amount common with most existing conversion kits. So the conversion is easily reversible and in theory one could mount the swytch on a titanium Brompton as well, though I would personally not dare to do that.
Other than that the mounting of the swytch-bag with the battery on the handlebar seems to be a possible issue on the Brompton as the space for bags on the carrier block is then somewhat limited. In the test in a to b they stated a slightly higher use of battery power with the swytch than with the factory eBrompton, but not to a relevant amount. |
The NYCe Wheels kit I had mounted the battery inside a regular Brompton bag. This kit operates with the bracket as part of the battery, the wires plug into it. I see no reason why you couldn't just place the whole thing - battery on bracket - into a bag.
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Originally Posted by Joe Remi
(Post 20452821)
The NYCe Wheels kit I had mounted the battery inside a regular Brompton bag. This kit operates with the bracket as part of the battery, the wires plug into it. I see no reason why you couldn't just place the whole thing - battery on bracket - into a bag.
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Originally Posted by Joe Remi
(Post 20452821)
The NYCe Wheels kit I had mounted the battery inside a regular Brompton bag. This kit operates with the bracket as part of the battery, the wires plug into it. I see no reason why you couldn't just place the whole thing - battery on bracket - into a bag.
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The Swytch 25 miles and 50 mile ratings don't exactly compare to other kits mileage assumptions. I put a Leeds 250 watt front wheel kit on a bike (not folding) for my wife over a year ago. It works great. Leeds is a simple concept - you just press a switch when you want some electric boost - otherwise just pedal. The hub motor doesn't appear to cause significant drag when just pedaling.
Leeds mileage ratings actually assume your cover the miles under electric power. The Swytch mileage number must presume you are pedaling the whole way also (the battery amp hour numbers are too small otherwise.) The Swytch 25 mile battery is 5 AH. The Leeds 24 mile battery is 12.8 AH. Of course the Swytch is pedal-assist. The Swytch pricing is attractive. I'd love to see a real world review of a Swytch compared to a unit like the Leeds. |
Yes and I think Leeds under-represents based on the assumption of no pedaling. I doubt Swytch is using that method to get their number.
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Originally Posted by towndock
(Post 20453200)
The Swytch 25 miles and 50 mile ratings don't exactly compare to other kits mileage assumptions. I put a Leeds 250 watt front wheel kit on a bike (not folding) for my wife over a year ago. It works great. Leeds is a simple concept - you just press a switch when you want some electric boost - otherwise just pedal. The hub motor doesn't appear to cause significant drag when just pedaling.
Leeds mileage ratings actually assume your cover the miles under electric power. The Swytch mileage number must presume you are pedaling the whole way also (the battery amp hour numbers are too small otherwise.) The Swytch 25 mile battery is 5 AH. The Leeds 24 mile battery is 12.8 AH. Of course the Swytch is pedal-assist. The Swytch pricing is attractive. I'd love to see a real world review of a Swytch compared to a unit like the Leeds. With the magnet ring-sensors the sensor just checks the movement of the crank and applies power to the amount of the level you have chosen upfront - so it is more of a fixed amount of Watts that you get in each level and typically only the higher levels of support will support to the legal max. speed of 25 kph when the motor cuts out (32 kph for the US and Canada, but I think not available on the Swytch Brompton kit). And as you can pedal w/o using power you can still move like a moped, just that you have to move the cranks w/o force. Obviously that will again influence your mileage to the negative. So these range discussions are a difficult one. A to b does regular tests of ebikes and kits on a standardized route that includes flats as well as various, differently steep hills and measure the amount of battery power used when riding and pedaling comfortably. With Brompton kits they typically measure around 10 Wh/km. The (preproduction) Swytch was a bit higher than that, the factory eBrompton a bit lower than that. "Normal" sized bikes may be a bit lower as well with the suboptimal aerodynamic rider position on an M or H Brompton being one of the reasons. An average, not too sporty cyclist will be able to deliver between maybe 75 and 150 Watts for a longer timespan. As a very rough estimate on a bike like the Brompton you'd need around 185W for 25kph, according to Kreuzotter. At 75W you'd reach about 17,5 kph, at 100W about 20 kph, at 150W around 23 kph. In the flat, more power needed when it get's hilly. So you see where the differences in range come from - they depend from the amount of your own pedaling force that you bring in in addition to the motor. |
Originally Posted by BillN33
(Post 20278251)
did you go for the 25 or 50 mile kit
I'm really tempted, but as you say, not sure how it will fit and ride - pity it cannot fit on the Brompton block |
Bromptons 'not designed for electric'
Originally Posted by jpjuggler
(Post 20451554)
I saw the swytch bike conversion for brompton...I was intrigued. I went to Local bike store that carries brompton.. the mechanic said bromptons are not engineered to handled power pulling from the front wheel. it damages the frame/folding point. I do not know if the mechanic was sharing credible info or not. As I saw this thread, has anyone else heard negative prediction regarding swytch/brompton? the mechanic also said that brompton is coming out with its own electric model and the whole bike was re-engineered to take pulling power from the front.....the brompton site for electric is uk only... nothing available in N. America......at this point,..
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