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Your big battery had more cells in each parallel group, that is a very good thing. 6P is better than 5P which is much better than 4P etc. If you are drawing 20 Amps total each cell in the parallel group has to supply 1/6th, 1/5th or 1/4 of the total so will be more or less stressed by the load...

Try discharging to around 36v then recharge and see if you have similar or better numbers.

Standard 46 tooth chainwheel? 21 or 25 depending on your assistance level. One of my party tricks is starting from a red light in third and assistance level 5, I find that in second it is too easy to wheelie...:rolleyes: Unrestricted that had lots of drivers scratching their heads as they tried...

I said "commuting" which is usually a little calmer than hooning around on a hot rodded BBS0x... 1. In the US they have 500 and 750W motors. And many of the "little" ones are hot rodded via the software. Along with bad chainwheel choices they were probably seeing well beyond 80 nm...

LG brand isn't the problem it is the type of LG cell which is. As many of us have discovered a BBS0x or equivalent is much harder on the battery and requires high output cells. 5P 10A cells isn't enough if you are using it hard you want a 15 A or a 20 A cell. I cooked my Samsung battery with the...

The XF07 is given for 33 km/h with a 36v battery and a 17 A controller. Mine tops out at about 27 km/h with a 15 A controller. An XF08 is a better choice in my view because you have more options in 7 and 8 speed cassettes.

Yes but I am not on TV debates very often these days...

The Bloomberg Global Innovation rating is out. The UK is 17th behind 9 EU countries, this is an important indicator for brexit and the future of your economy I feel. 20th in R&D, 40th in manufacturing, 23rd in productivity... The US fell out of the top ten and with budget cuts all over the...

Back in the good old days we had "debating" classes in high school, I guess they don't do that these days...

Early days! Those of us who only use bikes as primary transport are still eccentrics or worse, tree hugging hippy types you know! And I try to never say to people I don't have a mobile phone, they probably think I am one of those weirdos who go on about radiation and whatever... The idea that...

Which is also why they are best mated to an IGH for use on a commuter, you can change down when you please.

But start-up is smoother with 12... A chainwheel adaptor is easy to make from all kinds of stuff the best being one you 3D print. My PAS disk is currently mounted on the left attached to the bottom of a coffee can cut to fit.

I have visions of you bunny hopping curbs with ease... :p

Thanks! Yes I forgot about resistance, been a while since high school physics! If you are way out of balance between the two batteries then the parallel harness just becomes your fuse... :eek:

Doesn't the Commonwealth have more than 4 countries?

I have tried unrestricted on my previous two but I got over it and usually set the cut off to 27 km/h which just happens to be about 25 km/h on my GPS. I like going further than faster. These things will change because I have gone to the Dark Side :cool:, I'm bent now and as the graph shows I...

https://www.bike-discount.de/fr/acheter/shimano-tourney-cassette-mf-tz31-14-34-74201 They have the 14-28 too.

I have seen a couple of guys report that their home made ply or coroplast fairings gave them a 30% increase in speed! :) Yummy, can't wait! :cool:

OOOoooo! Look! A recumbent only requires 480W to reach 45 km/h :p Those of us who want to go far and fast with less power do have that option! :)

I am really amazed that no one has suggested the easy solution of paralleling a couple of of batteries... 22 miles (35.4 km) is a long way to cycle. You want to do it fast so I would be looking at a 48v system. Personally I think...