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Sounds like lots of fun! There are sheets aft for the symmetrical spinnaker, which also are shared when using the asymmetrical sails. The sheet (also guy) goes through a block which is close to the aft winch. The block (which is a pulley) also has a lever cleat attached to it. So you can use...

If it ain't broke don't fix it! Great it's been good. You likely also treat it well? They are certainly a very popular manufacturer piece of kit. .

They break under pressure, certainly. Alloy tends to tear and then snap off. I've broken a mast in a World Soling Championship of Queberon / France. I'm Australian, so I leased a boat. It was a few years old, and the mast had age hardened and become brittle. It's a known issue. Another...

I am a yachtsman and alloy masts and poles can just break. Its because aluminium "work hardens". It gets more brittle and then it will just fail. An example of alloy changing its characteristics happened with a small boat I bought for my 10 year old. The boat was used but was fast. It was a one...

7 speed Shimano maybe a Tourney. Upgradable.

It doesn't, because the poster is no longer converting a Dahon Mariner. He or she, is now converting a non folding bike. When I posted that, the price differential between buying a D8 and buying the electrical components, was around the same as buying a new Dahon ebike, at least is was for me...

Dahon do make two mid drives and also a rear hub drive bike. The E-20 has a 200 watt mid drive, and weighs 17 kg. Its likely a Tonsheng mid drive and torque pedal sensing setup. The K-One has either a 250 rear hub Bafang setup and weighs 19kg, or an alternatively the K-One has a mid drive 250...

You have no capacity for even schoolboy physics Bonzo. You said the following: As per Newton's laws, there is no energy lost from the mid motor. Whatsover. - A small part of that energy directed for forward motion is lost in friction in a mid motor setup. - A small part of that energy...

The bikes I am getting don't have the Bafang mid motor. The rear motor is a Tongsheng TSDZ2 @ 32 volts. The newer Dahon A-20 which isn't available in Australia yet, also is reputed to have a Tongsheng, but likely a different version, as its 200 Watts. Its said to perform well. I doubt I would...

Yes, its scary stuff. My son told me about it. He is in building automation. He said its scary. He used it to make a draft for a building process - and it was very close to what he wanted. In about 10 seconds. I tested with diesel V6 motors, and it got things quite wrong, and was shallow on...

Yep, there's advantages and disadvantages in both systems. Wear issues on bikes have always been around. That's why you check your gear. Punctures are the unpredictable issues for me though. We all have different priorities. For me, I wanted a natural fun ride. And because I also want to use...

I doubt I will. I did research them some time ago though, and established which one it was. But that maybe 7 weeks ago. On the control setup - the hub motor version had a large display, while the mid motor version had a small and mean looking display. Although the small display was easy to use...

I didn't know about chat GTP until last night!!! Yep - its database is shallow ... I tested it with automobiles and it was wrong! Bonzo - Newton's laws do apply. You said that the energy ie torque - decreases due to the gears, and you listed the decrease in torque from 80 to 70 to 60 down to...

And I sort of wrote this: Newton's second law of motion states that the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass. Mathematically, it can be expressed as F = m * a, where F represents the net force applied to the...

Some mid motor bikes don't have gears at all. They can still go up hills. If the gearing is similar, they'd go up marginally worse (due to weight and friction effects - Newton's second law - than a single geared hub motor bike. As far as bikes with gears, I guess you don't understand Newton's...

Today I payed a deposit, for two Dahon K-One bikes. The shop is putting racks, are carry bag, mud guards on them, and changing the tyres from 1.75 wide tyres to Schwable 2.15 Fat somethings. I wanted more aired tyres, for ride and also to handle grass better. The rear motor version was 1 kg...

Bonzo, thanks for the statistics. Thanks for the info on the dominance of hub motors in China, and around the world. Just a few points. You said the following: " However on a mid-drive motor with lets say 85Nm it may be you get 90Nm for its lowest gear but its very slow with a high cadence and...

Ok its daytime here in Melbourne, and winter is coming. Its wet and for us, pretty cool at 12.7 degrees Centigrade (that's only 34 degrees fahrenheit) and its raining. So a great time here to get a good bike buy . Our financial year finishes at the end of June, plus high interest rates and tax...

Bonzo, thanks for the statistics. I'll comment further when I have time.