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Sounds like it got to warm being encased better airflow cooling or modding with a couple of small heatsinks & 2 x 5v 40mm mini fans would work and run them off a 1s 2p set up. My BPM 20a lishui controller got very warm I noticed, so did mod it as above, the cells take ages to drain.

Possibly, possibly not. Jimmy @ bga has many batteries from retailers that need looking at for simple repairs. When I was there last year there was a big box half full with batteries waiting for his attention form one retailer.

Unusual BB set up though not common looks like a Truvative Howitzer type that uses ext bearings with ISIS through cranks for DH bikes. Isis afaik is 21mm dia, ideally if the Isis shape is marked on the disc it could be carefully dremmeled out to prevent it spinning on the shaft.

A good result, satisfying when things turn out right. The Ann BMS's seem to be very good and have used their products a few times now.

Very same idea with this French friction drive kit. http://gboost.bike/product-category/bundle-systems-with-battery/

The LH bearing has two 2.5 or 3mm spacers, can probably remove them and screw the bearing cup up tighter using the sensor ring as 1mm spacer, leaving room for a pas disc between said bearing and crank arm. Disc then only needs the centre expanded to 23/24 dia hole neatly drilled out for tight...

Being such a small island he was always going to be noticed if they have a strict road enforcement policy, if it had been Jersey then Jim would have to many crimes to solve. I expect a normal racing bike wizzing around would be fine just a case of them upholding the law for an unlicensed bike...

A std type of puller will be needed if the BB is sq taper. David Miall may see this or contact him @Amps, their Wisper add is at the side of screen. He will carry spares for all the range even after they have ceased production. If it a non torque model then repair is easier and simple with a...

I have 3 bikes with that type of BB, they are GXP or Hollowtech. Most pas magnet discs can be modified to fit and work with a sensor and many of us have done it with successful results.

Alternatively a couple of good used bikes though not mtb style, both hub drive.. Both have tyres suitable for light trails/ old railway paths. Big bear in black is very nice lots of power /torque. http://wooshbikes.co.uk/?secondhand.

Two kits for 500/600 quid isn't really feasible, minimum is 800 - 1200 for two kits with a battery. Geared hub drive is what you ideally require as the 1000w switchable kits are generally quite poor and gutless at low speed and hill climbing. For you requirements with mainly throttle use your...

The 'Moth' sounds better but being small and light as you are hopeful of, Wipser ' Gnat ' might fit.

Samsung 26F or J (5.2a rated) cells in a 10S 4P config. If you don't derestrict and only use a max 15a controller and look after the battery, then with regular use it should be good for 18mths - 2 years before capacity/range may decrease (10-20%). Range variable 30 miles or so likely to be...

Nearly all controllers have a throttle and pas option, with the throttle/T&G option it's just a case of correct wrie sequence.

Show us a pic of the damage , if it's only the lead then carry out a simple repair.

The same old chestnut that goes from pillar to post !!! The OP should have posted in the s pedelec/non eapc sub forum then we might not have the same old chestnut/right or wrongers arguing the toss as usual and getting nowhere except going around in circles :(.

I wear a Safanic brushed thin base layer and a slightly thicker Safanic brushed mid layer, on top of that I have a Dimex fleecy top jacket. Tenn wind/water resistant mtb trousers over thermal base layer ( 50% cotton/50% poly). Silk base gloves and socks under outer layer and neoprene overshoes...

Faster speed will reduce range so will use the batteries energy up quicker if cut off speed is higher then 25km/h, realistically 32- 35 km/h is a more gettable speed then 40 -50. More battery capacitiy /ah will be required. Ideally for your requirements ( above 40kh/m) you will need an S-...

Although he is very tall lad , looks like he would have a problem getting on even with a dropper.

I'm not legible to enter as a family member of an employee.