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  1. Sturmey

    a question on walk mode

    This remind me of the traditional idea of the 'Dead Mans Handle' fitted to trains etc. I think lawnmowers since the 80's has to have similar setup that cuts of engine although some people have a loop of wire to tie them back. Back to the bike, think of someone getting their fingers caught in the...
  2. Sturmey

    Short cranks !

    This is something I played around with a bit. Some observations/comments. I notice many of the older hybrids seem to have lower bottom bracket heights to begin with. MTBs on the other hand are often over an inch higher. One of the great advantages of disk brakes is that you can relatively easily...
  3. Sturmey

    Help! Bike is always on full throttle after changing motor

    A quick and wild guess/possibility but I am not familiar with that motor, is that there is some problem/difference with speed sensor wire or magnet (should be fourth hall sensor /usually one magnet fitted to sidecover?)
  4. Sturmey

    Swapping wheel rims

    The difference between a nominal 27.5 inch wheel rim (584mm) and a nominal 26 inch wheel rim (559 mm) is only an inch (25mm) in diameter or a half inch on the radius. So I think you will get away with fitting the 26 inch wheel, particularly on the rear with disc brakes. Here is what I would do...
  5. Sturmey

    MXUS XF15F hub

    Hi. I have a mxus xf15R (rear freewheel) and they are a little noisy I think by design. They use a 5:1 straight cut planetary gears which I think are by design noisy compared to helical gears. Other than that, its a good motor. There are other complaints on line about this if you google 'mxus...
  6. Sturmey

    Yose Power Triangle Battery Recall

    I agree with you here. A conductor with a high temperature rated insulation can run hotter and will be capable of shedding more heat as this ability is proportional to the difference between the conductor/wire temperature and the ambient temperature. PS Sometimes cables/conductors are made...
  7. Sturmey

    What's the answer?

    Does adding weight really slow down a bike that much or is it that the bike feels slower? In theory, for example, it would appear that if say a 85KG rider with a 15Kg bike, (total 100KG) adds say a freewheeling geared motor and battery (5kg) to their bike, then the most speed they should loose...
  8. Sturmey

    Fork Choice(Cheap)

    I have a number of older/high miles bikes with cheap chrome steel sprung forks with some rust . Other than a bit of sloppiness (bushing wear) and one fork seizing , they seem to ride on the road ok. There is no rust on the bottom near the dropouts which can be an issue with the flattened tube...
  9. Sturmey

    Dual voltage

    Just checked, my LCD5 has L settings. To check mine, I scrolled through the P and C settings as normal. After C14 flashes, hit center button quick once and C14 stopped flashing. Then press the up and down button together for about 10 seconds in my case and this brought me into L1. This also...
  10. Sturmey

    Dual voltage

    There are 'L' settings on some KT LCD's and controllers which allow you to force the controller's LVC to say 30 volts which is an option but has its drawbacks. I have never actually tried it but the settings are on my LCD's
  11. Sturmey

    What's the answer?

    What's the question?
  12. Sturmey

    Folding bikes

    Also from Schwalbe below. https://www.schwalbe.com/media/32/85/58/1694006374/Schwalbe-TechInfo-2015_GB.pdf
  13. Sturmey

    Knee issues, heavy rider, good power, 1500gbp budget help please

    All my bikes have throttles as well as pedal assist but I generally pedal with pedal assist and use the throttle only as required when pulling away from stops, extra boost on hills, and when dogs chase me down the road. I suppose I might consider myself as a moderate user of the throttle...
  14. Sturmey

    Knee issues, heavy rider, good power, 1500gbp budget help please

    Front hub motors have a little bit of an advantage here in that they dont appear to have that problem and can be a good choice. Of course, the non motor ordinary rear wheel can break spokes but its generally easier to deal with this and other rear wheel problems / get replacement/ local bike...
  15. Sturmey

    Knee issues, heavy rider, good power, 1500gbp budget help please

    With bad knees, I would keep away from torque sensors. I think a throttle would be ideal. The bike below is designed for up to 25 stone weigh and I think would be ideal. Best of luck and ignore the negative comments. https://wooshbikes.co.uk/?bigbearplus
  16. Sturmey

    fuses!!!

    In a normal ebike setup there are a number of overcurrent protections that I can think of.. The battery BMS FETs should trip a little over the batteries nominal max current rating. The battery normally has a back up fuse of higher rating over that again. The controller normally has a shunt...
  17. Sturmey

    Battery Weight vs Range... a dilemma

    What you need is a good pannier rack. I have just come back from a hilly ride this morning. (76 Km). I was carrying a total of 32 Ah at 36V volt battery paralleled and weighing nearly 8 kilo. No problem with a good touring rack and keep the weight low. Also plenty of room for snacks, rain...
  18. Sturmey

    rear spokes on an e bike

    Sometimes you can keep a wheel going by a quick replacement of the broken spokes only. I have often got a pliers and bent 13g spokes into a tight circle to get around the disk. On my bike, the 32T freewheel cog was smaller than the motor hub. All my spoke breakages were at the j bend. To replace...
  19. Sturmey

    Help! Pendleton Somerby E (2019+) battery charger - shows charged (red light + green light) when not connected to battery

    Both the older and newer versions of the instruction manuals (attached below) state "If the battery is not used for 24 hours or longer, it will automatically go into sleep mode. Press the power button on the battery for three seconds" This might explain although I have never seen it happen with...
  20. Sturmey

    Chain cleaning day.

    The first of April is traditional chain cleaning day. Just follow Sheldon Brown's instructions below and your chain should last many years. https://www.sheldonbrown.com/chainclean.html